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1

The Owen value of stochastic cooperative game.  

PubMed

We consider stochastic cooperative game and give it the definition of the Owen value, which is obtained by extending the classical case. Then we provide explicit expression for the Owen value of the stochastic cooperative game and discuss its existence and uniqueness. PMID:24892100

E, Cheng-Guo; Li, Quan-Lin; Li, Shi-Yong

2014-01-01

2

The Owen Value of Stochastic Cooperative Game  

PubMed Central

We consider stochastic cooperative game and give it the definition of the Owen value, which is obtained by extending the classical case. Then we provide explicit expression for the Owen value of the stochastic cooperative game and discuss its existence and uniqueness. PMID:24892100

E, Cheng-Guo; Li, Quan-Lin; Li, Shi-Yong

2014-01-01

3

An Analysis of Stochastic Game Theory for Multiagent Reinforcement Learning  

E-print Network

An Analysis of Stochastic Game Theory for Multiagent Reinforcement Learning Michael Bowling Manuela and adapt. Stochastic games, first studied in the game theory community, are a natural extension of MDPs techniques for solving stochastic games from both the game theory community and reinforcement learning

4

The robustness of stochastic switching networks  

Microsoft Academic Search

Many natural systems, including chemical and biological systems, can be modeled using stochastic switching circuits. These circuits consist of stochastic switches, called pswitches, which operate with a fixed probability of being open or closed. We study the effect caused by introducing an error of size. to each pswitch in a stochastic circuit. We analyze two constructions.simple series-parallel and general series-parallel

Po-Ling Loh; Hongchao Zhou; Jehoshua Bruck

2009-01-01

5

The bad match; a total reward stochastic game  

Microsoft Academic Search

Summary For two person zero sum stochastic games we introduce a new criterion for evaluating streams of payoffs. When the players use this criterion we call such games total reward stochastic games. It is unknown whether total reward stochastic games, with the property that the average value is zero for each initial state, always have a value. We examine an

F. Thuijsman; O. J. Vrieze

1987-01-01

6

Stochastic Differential Games with Asymmetric Information  

SciTech Connect

We investigate a two-player zero-sum stochastic differential game in which the players have an asymmetric information on the random payoff. We prove that the game has a value and characterize this value in terms of dual viscosity solutions of some second order Hamilton-Jacobi equation.

Cardaliaguet, Pierre, E-mail: Pierre.Cardaliaguet@univ-brest.fr; Rainer, Catherine [Universite de Brest, Laboratoire de Mathematique (UMR CNRS 6205) (France)], E-mail: Catherine.Rainer@univ-brest.fr

2009-02-15

7

Stochastic Switching Circuit Synthesis Daniel Wilhelm  

E-print Network

introduce a new duality property for series-parallel stochastic switching circuits. Finally, we construct on the so-called two-terminal series-parallel circuits. A two-terminal circuit is an undirected graph. A two-terminal circuit C is series-parallel (sp) iff C is: (1) a single switch, or (2) a series

Bruck, Jehoshua (Shuki)

8

Switch-phase distributions and stochastic resonance  

NASA Astrophysics Data System (ADS)

The de-synchronization mechanism that occurs for noise intensities above stochastic resonance is analyzed in terms of switch-time and switch-phase distributions. In particular, we observed that (i) the switch-time distributions exhibit thicker peak structures with maxima at the multiples (both odd and even) of the half forcing period; (ii) the switch-phase distributions are doubly peaked, being dominated by the in-phase and ? out-of-phase events. The appearance of these properties of the switch statistics is discussed on the grounds of numerical simulations.

Marchesoni, F.; Apostolico, F.; Santucci, S.

1998-11-01

9

Stochastic Games with Average Payoff Criterion  

SciTech Connect

We study two-person stochastic games on a Polish state and compact action spaces and with average payoff criterion under a certain ergodicity condition. For the zero-sum game we establish the existence of a value and stationary optimal strategies for both players. For the nonzero-sum case the existence of Nash equilibrium in stationary strategies is established under certain separability conditions.

Ghosh, M. K. [Department of Mathematics, Indian Institute of Science, Bangalore 560012 (India); Bagchi, A. [Department of Applied Mathematics, University of Twente, P.O. Box 217, 7500 AE Enschede (Netherlands)

1998-11-15

10

Pathwise Strategies for Stochastic Differential Games with an Erratum to 'Stochastic Differential Games with Asymmetric Information'  

SciTech Connect

We introduce a new notion of pathwise strategies for stochastic differential games. This allows us to give a correct meaning to some statement asserted in Cardaliaguet and Rainer (Appl. Math. Optim. 59: 1-36, 2009)

Cardaliaguet, P., E-mail: cardaliaguet@ceremade.dauphine.fr [Universite Paris-Dauphine, Ceremade (France); Rainer, C., E-mail: Catherine.Rainer@univ-brest.fr [Universite de Bretagne Occidentale (France)

2013-08-01

11

Quantitative Stochastic Parity Games Krishnendu Chatterjee  

E-print Network

Quantitative Stochastic Parity Games Krishnendu Chatterjee Marcin Jurdzi´nski Thomas A. Henzinger which a player has a strategy to win with probability 1 (or with positive probability). The quantitative polynomial-time algorithms both for the qualitative and the quantitative solution. The running time

Jurdziñski, Marcin

12

Total Reward Stochastic Games and Sensitive Average Reward Strategies  

Microsoft Academic Search

In this paper, total reward stochastic games are surveyed. Total reward games are motivated as a refinement of average reward games. The total reward is defined as the limiting average of the partial sums of the stream of payoffs. It is shown that total reward games with finite state space are strategically equivalent to a class of average reward games

F. Thuijsman; O. J. Vrieze

1998-01-01

13

Perturbed zero-sum games with applications to stochastic and repeated games  

E-print Network

Perturbed zero-sum games with applications to stochastic and repeated games Eitan ALTMAN Eugene A. FEINBERG INRIA, B This paper deals with perturbed matrix games. The main result is that fo* *r a large class

Feinberg, Eugene A.

14

Switch dynamics for stochastic model of genetic toggle switch  

NASA Astrophysics Data System (ADS)

Recently, more and more biological experiments have indicated that noise plays an important role in bistable systems, such as the case of the bimodal population distribution in the genetic toggle switch. In this paper, we further verify that noises in degradation rates can indeed induce switching in the genetic toggle switch. Meanwhile, we apply the theory of mean first passage time (MFPT) in high dimensional system to the above stochastic model. According to our assumption, the high order finite difference method is used to compute the MFPT (that the average time switching from one steady state to the other) and we find that the relationship between the MFPT and noise intensity is negative correlation. The result is also verified through another numerical simulation method.

Xu, Yong; Zhu, Ya-nan; Shen, Jianwei; Su, Jianbin

2014-12-01

15

Perturbed zero-sum games with applications to stochastic and repeated games  

E-print Network

Perturbed zero-sum games with applications to stochastic and repeated games Eitan ALTMAN INRIA, B matrix games. The main result is that for a large class of perturbations the sets of solutions of perturbed games converge to subsets of solutions of appropriate lexicographic games. We consider

Feinberg, Eugene A.

16

Stochastic Frontier Estimation of Efficient Learning in Video Games  

ERIC Educational Resources Information Center

Stochastic Frontier Regression Analysis was used to investigate strategies and skills that are associated with the minimization of time required to achieve proficiency in video games among students in grades four and five. Students self-reported their video game play habits, including strategies and skills used to become good at the video games

Hamlen, Karla R.

2012-01-01

17

Total risk aversion, stochastic optimal control, and differential games  

Microsoft Academic Search

We present a connection between the theory of risk in the context of a stochastic optimal control problem and its relation to the theory of differential games. In particular, we define the notion of total risk aversion from the viewpoint of the upper value of a differential game. We prove that as the index of absolute risk aversion of a

E. N. Barron; R. Jensen

1989-01-01

18

Two Different Approaches to Nonzero-Sum Stochastic Differential Games  

SciTech Connect

We make the link between two approaches to Nash equilibria for nonzero-sum stochastic differential games: the first one using backward stochastic differential equations and the second one using strategies with delay. We prove that, when both exist, the two notions of Nash equilibria coincide.

Rainer, Catherine [Departement de Mathematiques, Universite de Bretagne Occidentale, 6 avenue Victor-le-Gorgeu - CS 93837 (France)], E-mail: Catherine.Rainer@univ-brest.fr

2007-06-15

19

DYNAMIC GAME OF OFFENDING AND LAW ENFORCEMENT: A STOCHASTIC EXTENSION  

Microsoft Academic Search

This article provides an extension of the Fend-Feichtinger-Tragler dynamic game of offending and law enforcement to a stochastic framework. This allows the analysis to reflect actual crime statistics which displays randomness in its distribution. Stochastic paths of crimes are derived. The asymptotic stationary distribution of crime records is also obtained.

DAVID W. K. YEUNG; YINGXUAN ZHANG; PATRICIA M. YEUNG; DEMI MAK

2010-01-01

20

Spatial effect on stochastic dynamics of bistable evolutionary games  

NASA Astrophysics Data System (ADS)

We consider the lifetimes of metastable states in bistable evolutionary games (coordination games), and examine how they are affected by spatial structure. A semiclassical approximation based on a path integral method is applied to stochastic evolutionary game dynamics with and without spatial structure, and the lifetimes of the metastable states are evaluated. It is shown that the population dependence of the lifetimes is qualitatively different in these two models. Our result indicates that spatial structure can accelerate the transitions between metastable states.

So, Kohaku H. Z.; Ohtsuki, Hisashi; Kato, Takeo

2014-10-01

21

Adaptive Tracking for Stochastic Nonlinear Systems With Markovian Switching  

Microsoft Academic Search

The problem of the adaptive tracking for a class of stochastic nonlinear systems with stationary Markovian switching is considered in this note. An Ito formula is proposed for stochastic integral equations with an integral about martingale measure. An adaptive backstepping controller is designed such that the closed-loop system has a unique solution that is globally bounded in probability and L4-norm

Zhao Jing Wu; Jun Yang; Peng Shi

2010-01-01

22

PRISM-games: A Model Checker for Stochastic Multi-Player Games  

E-print Network

PRISM-games: A Model Checker for Stochastic Multi-Player Games Taolue Chen1 , Vojtech Forejt1 of Oxford, UK 2 School of Computer Science, University of Birmingham, UK Abstract. We present PRISM checker PRISM, benefiting from its existing user interface and simulator, whilst adding novel model

Oxford, University of

23

Evolutionary Rotation in Switching Incentive Zero-Sum Games  

E-print Network

In a laboratory experiment, round by round, individual interactions should lead to the social evolutionary rotation in population strategy state space. Successive switching the incentive parameter should lead to successive change of the rotation ---- both of its direction and its strength. In data from a switching payoff matrix experiment of extended 2x2 games (Binmore, Swierzbinski and Proulx, 2001 [1]), we find the changing of the social evolutionary rotation can be distinguished quantitatively. The evolutionary rotation can be captured by evolutionary dynamics. With eigenvalue from the Jacobian of a constrained replicator dynamics model, an interpretation for observed rotation strength is given. In addition, equality-of-populations rank test shows that relative response coefficient of a group could persist cross the switching parameter games. The data has successively been used to support Von Neumann's minimax theory. Using the old data, with observed evolutionary rotation, this report provides a new insight into evolutionary game theory and experimental social dynamics.

Zhijian Wang; Bin Xu

2012-07-24

24

Stochastic switching induced adaptation in a starved Escherichia coli population.  

PubMed

Population adaptation can be determined by stochastic switching in living cells. To examine how stochastic switching contributes to the fate decision for a population under severe stress, we constructed an Escherichia coli strain crucially dependent on the expression of a rewired gene. The gene essential for tryptophan biosynthesis, trpC, was removed from the native regulatory unit, the Trp operon, and placed under the extraneous control of the lactose utilisation network. Bistability of the network provided the cells two discrete phenotypes: the induced and suppressed level of trpC. The two phenotypes permitted the cells to grow or not, respectively, under conditions of tryptophan depletion. We found that stochastic switching between the two states allowed the initially suppressed cells to form a new population with induced trpC in response to tryptophan starvation. However, the frequency of the transition from suppressed to induced state dropped off dramatically in the starved population, in comparison to that in the nourished population. This reduced switching rate was compensated by increasing the initial population size, which probably provided the cell population more chances to wait for the rarely appearing fit cells from the unfit cells. Taken together, adaptation of a starved bacterial population because of stochasticity in the gene rewired from the ancient regulon was experimentally confirmed, and the nutritional status and the population size played a great role in stochastic adaptation. PMID:21931628

Shimizu, Yoshihiro; Tsuru, Saburo; Ito, Yoichiro; Ying, Bei-Wen; Yomo, Tetsuya

2011-01-01

25

Stochastic stability in spatial games Jacek Miekisz  

E-print Network

of the best known game is that of a Prisoner's Dilemma game [10]. It has a unique Nash equilibrium, when both. However, both players are better o# when they cooperate. Dynamical aspects of spatial prisoner's dillema from the population. The dynamical interpretation of the evolutionarily stable strategy was later

Miekisz, Jacek

26

Department of Computer Science PLAYING STOCHASTIC GAMES PRECISELY  

E-print Network

functions including reachability, -regular, dis- counted reward, and total reward. We show that precise specified by annotating the vertices with rewards, and include total reward, discounted reward, average reward [8], and more recently -regular objectives [3]. #12;Playing Stochastic Games Precisely 3

Oxford, University of

27

The Dynamics of the Nash Correspondence and n-Player Stochastic Games  

E-print Network

The Dynamics of the Nash Correspondence and n-Player Stochastic Games Eilon Solan January 25, 2001 Abstract A quitting game is a sequential game where each player has two actions: to continue or to quit, and the game continues as long as no player quits. For every continuation payoff x we assign a one-shot game

Solan, Eilon

28

Stochastic linear programming games with concave preferences  

E-print Network

In other words, the values (di)i?S represent deterministic transfer payments between the players ...... that the families {Qi}i?N are given as systems of linear inequalities. ..... New techniques for cost sharing in combinatorial optimization games...

2014-12-04

29

Task switching in video game players: Benefits of selective attention but not resistance to proactive interference  

E-print Network

Task switching in video game players: Benefits of selective attention but not resistanceINFO classification: 2300 2340 2346 Keywords: Task switching Selective attention Executive control Video games a b s t r a c t Research into the perceptual and cognitive effects of playing video games is an area

Shedden, Judith M.

30

Stochastic switching in delay-coupled oscillators  

NASA Astrophysics Data System (ADS)

A delay is known to induce multistability in periodic systems. Under influence of noise, coupled oscillators can switch between coexistent orbits with different frequencies and different oscillation patterns. For coupled phase oscillators we reduce the delay system to a nondelayed Langevin equation, which allows us to analytically compute the distribution of frequencies and their corresponding residence times. The number of stable periodic orbits scales with the roundtrip delay time and coupling strength, but the noisy system visits only a fraction of the orbits, which scales with the square root of the delay time and is independent of the coupling strength. In contrast, the residence time in the different orbits is mainly determined by the coupling strength and the number of oscillators, and only weakly dependent on the coupling delay. Finally we investigate the effect of a detuning between the oscillators. We demonstrate the generality of our results with delay-coupled FitzHugh-Nagumo oscillators.

D'Huys, Otti; Jngling, Thomas; Kinzel, Wolfgang

2014-09-01

31

Stochastic switching in delay-coupled oscillators.  

PubMed

A delay is known to induce multistability in periodic systems. Under influence of noise, coupled oscillators can switch between coexistent orbits with different frequencies and different oscillation patterns. For coupled phase oscillators we reduce the delay system to a nondelayed Langevin equation, which allows us to analytically compute the distribution of frequencies and their corresponding residence times. The number of stable periodic orbits scales with the roundtrip delay time and coupling strength, but the noisy system visits only a fraction of the orbits, which scales with the square root of the delay time and is independent of the coupling strength. In contrast, the residence time in the different orbits is mainly determined by the coupling strength and the number of oscillators, and only weakly dependent on the coupling delay. Finally we investigate the effect of a detuning between the oscillators. We demonstrate the generality of our results with delay-coupled FitzHugh-Nagumo oscillators. PMID:25314515

D'Huys, Otti; Jngling, Thomas; Kinzel, Wolfgang

2014-09-01

32

Partial synchronization in stochastic dynamical networks with switching communication channels  

NASA Astrophysics Data System (ADS)

In this paper, the partial synchronization problem of stochastic dynamical networks (SDNs) is investigated. Unlike the existing models, the SDN considered in this paper suffers from a class of communication constraintonly part of nodes' states can be transmitted. Thus, less nodes' states can be used to synchronize the SDN, which makes the analysis of the synchronization problem much harder. A set of channel matrices are introduced to reflect such kind of constraint. Furthermore, due to unpredictable environmental changes, the channel matrices can switch among some communication modes. The switching considered here is governed by a Markov process. To overcome the difficulty, a regrouping method is employed to derive our main results. The obtained conditions guarantee that partial synchronization can be achieved for SDNs under switching communication constraint. Finally, numerical examples are given to illustrate the effectiveness of the theoretical results and how the communication constraint influences synchronization result.

Huang, Chi; Ho, Daniel W. C.; Lu, Jianquan; Kurths, Jrgen

2012-06-01

33

Existence of Correlated Weak Equilibria in Discounted Stochastic Games with General State Space  

Microsoft Academic Search

\\u000a This paper treats of nonzero-sum discounted stochastic games with general state space where the players are allowed to use\\u000a correlated strategies. The concept of correlated weak equilibrium of Moulin and Vial (being an extension of the Nash equilibrium\\u000a point) is adopted to such games. An existence theorem is proved for a class of discounted stochastic games with a Borel state

Andrzej S. Nowak

34

Stochastic Hybrid Control for Visibility-Based Pursuit-Evasion Games  

E-print Network

Stochastic Hybrid Control for Visibility-Based Pursuit-Evasion Games V. Isler, K. Daniilidis, and G 19104, USA Email: calin@drexel.edu Abstract-- Pursuit-evasion games in complex envi- ronments have a rich but disconnected history. Con- tinuous or differential pursuit-evasion games focus on optimal

Belta, Calin A.

35

A Stochastic Maximum Principle for a Stochastic Differential Game of a Mean-Field Type  

SciTech Connect

We construct a stochastic maximum principle (SMP) which provides necessary conditions for the existence of Nash equilibria in a certain form of N-agent stochastic differential game (SDG) of a mean-field type. The information structure considered for the SDG is of a possible asymmetric and partial type. To prove our SMP we take an approach based on spike-variations and adjoint representation techniques, analogous to that of S. Peng (SIAM J. Control Optim. 28(4):966-979, 1990) in the optimal stochastic control context. In our proof we apply adjoint representation procedures at three points. The first-order adjoint processes are defined as solutions to certain mean-field backward stochastic differential equations, and second-order adjoint processes of a first type are defined as solutions to certain backward stochastic differential equations. Second-order adjoint processes of a second type are defined as solutions of certain backward stochastic equations of a type that we introduce in this paper, and which we term conditional mean-field backward stochastic differential equations. From the resulting representations, we show that the terms relating to these second-order adjoint processes of the second type are of an order such that they do not appear in our final SMP equations. A comparable situation exists in an article by R. Buckdahn, B. Djehiche, and J. Li (Appl. Math. Optim. 64(2):197-216, 2011) that constructs a SMP for a mean-field type optimal stochastic control problem; however, the approach we take of using these second-order adjoint processes of a second type to deal with the type of terms that we refer to as the second form of quadratic-type terms represents an alternative to a development, to our setting, of the approach used in their article for their analogous type of term.

Hosking, John Joseph Absalom, E-mail: j.j.a.hosking@cma.uio.no [University of Oslo, Centre of Mathematics for Applications (CMA) (Norway)

2012-12-15

36

Action video game experience reduces the cost of switching Matthew S. Cain & Ayelet N. Landau &  

E-print Network

Action video game experience reduces the cost of switching tasks Matthew S. Cain & Ayelet N. Landau & Arthur P. Shimamura # Psychonomic Society, Inc. 2012 Abstract Video game expertise has been shown to have beneficial effects for visual attention processes, but the effects of action video game playing on executive

Shimamura, Arthur P.

37

Making Greed Work in Networks: A Game-Theoretic Analysis of Switch Service Disciplines  

Microsoft Academic Search

This paper discusses congestion control from a game-theoretic perspective. There are twobasic premises: (1) users are assumed to be independent and selfish, and (2) central administrativecontrol is exercised only at the network switches. The operating points resulting from selfishuser behavior depend crucially on the service disciplines implemented in network switches. Thiseffect is investigated in a simple model consisting of a

Scott Shenker

1994-01-01

38

DOOM'd to Switch: Superior Cognitive Flexibility in Players of First Person Shooter Games  

PubMed Central

The interest in the influence of videogame experience on our daily life is constantly growing. First Person Shooter (FPS) games require players to develop a flexible mindset to rapidly react to fast moving visual and auditory stimuli, and to switch back and forth between different subtasks. This study investigated whether and to which degree experience with such videogames generalizes to other cognitive-control tasks. Video-game players (VGPs) and individuals with little to no videogame experience (NVGPs) performed on a task switching paradigm that provides a relatively well-established diagnostic measure of cognitive flexibility. As predicted, VGPs showed smaller switching costs (i.e., greater cognitive flexibility) than NVGPs. Our findings support the idea that playing FPS games promotes cognitive flexibility. PMID:21833191

Colzato, Lorenza S.; van Leeuwen, Pieter J.A.; van den Wildenberg, Wery P.M.; Hommel, Bernhard

2010-01-01

39

From stochastic single atomic switch to nanoscale resistive memory device.  

PubMed

We study the switching characteristics of nanoscale junctions created between a tungsten tip and a silver film covered by a thin ionic conductor layer. Atomic-sized junctions show spectacular current induced switching characteristics, but both the magnitude of the switching voltage and the direction of the switching vary randomly for different junctions. In contrast, somewhat larger junctions with diameters of a few nanometres display a well defined, reproducible switching behavior attributed to the formation and destruction of nanoscale channels in the ionic conductor surface layer. Our results define a lower size limit of 3 nm for reliable ionic nano-switches, which is well below the resolution of recent lithographic techniques. PMID:21409261

Geresdi, Attila; Halbritter, Andrs; Gyenis, Andrs; Makk, Pter; Mihly, Gyrgy

2011-04-01

40

Nash Certainty Equivalence in Large Population Stochastic Dynamic Games: Connections with the  

E-print Network

Nash Certainty Equivalence in Large Population Stochastic Dynamic Games: Connections;Brief Historic Background: Prisoner's Dilemma A Very Simple Model with a Rich Structure: Two criminal(n): the population driving term z(n) = 1 n n i=1 zi ui: control wi: noise (a standard Wiener process) n: population

Huang, Minyi

41

Game Theoretic Stochastic Routing for Fault Tolerance and Security in Computer Networks  

Microsoft Academic Search

We introduce the Game-Theoretic Stochastic Routing (GTSR) framework, a proactive alternative to today's reactive approaches to route repair. GTSR minimizes the impact of link and router failure by (1) computing multiple paths between source and destination and (2) selecting among these paths randomly to forward packets. Besides improving fault-tolerance, the fact that GTSR makes packets take random paths from source

Stephan Bohacek; Joo Pedro Hespanha; Junsoo Lee; Chansook Lim; Katia Obraczka

2007-01-01

42

Adaptive synchronization for neutral-type neural networks with stochastic perturbation and markovian switching parameters.  

PubMed

In this paper, the problem of adaptive synchronization is investigated for stochastic neural networks of neutral-type with Markovian switching parameters. Using the M -matrix approach and the stochastic analysis method, some sufficient conditions are obtained to ensure three kinds of adaptive synchronization for the stochastic neutral-type neural networks. These three kinds of adaptive synchronization include the almost sure asymptotical synchronization, exponential synchronization in p th moment and almost sure exponential synchronization. Some numerical examples are provided to illustrate the effectiveness and potential of the proposed design techniques. PMID:24771606

Zhou, Wuneng; Zhu, Qingyu; Shi, Peng; Su, Hongye; Fang, Jian'an; Zhou, Liuwei

2014-12-01

43

On the Expressibility of Stochastic Switching Hongchao Zhou  

E-print Network

of a switching circuit C1 (with probability p1) to one terminal of C2 (with probability p2) places them in series + p2 - p1p2. In this paper, we focus on simple series-parallel (ssp) switching circuits. An ssp circuit is either: (1) a single pswitch, or (2) a ssp circuit with an additional pswitch added in series

Bruck, Jehoshua (Shuki)

44

On the Expressibility of Stochastic Switching Hongchao Zhou  

E-print Network

circuit is p1 · p2. Connecting both terminals of two switching circuits C1 and C2 places them in parallel series-parallel (ssp) switching circuits, where an ssp circuit is either: (1) a single pswitch, or (2) an ssp circuit with an additional pswitch added in series or parallel. In [5], it is shown that ssp

Bruck, Jehoshua (Shuki)

45

Gains from switching and evolutionary stability in multi-player matrix games.  

PubMed

In this paper we unify, simplify, and extend previous work on the evolutionary dynamics of symmetric N-player matrix games with two pure strategies. In such games, gains from switching strategies depend, in general, on how many other individuals in the group play a given strategy. As a consequence, the gain function determining the gradient of selection can be a polynomial of degree N-1. In order to deal with the intricacy of the resulting evolutionary dynamics, we make use of the theory of polynomials in Bernstein form. This theory implies a tight link between the sign pattern of the gains from switching on the one hand and the number and stability of the rest points of the replicator dynamics on the other hand. While this relationship is a general one, it is most informative if gains from switching have at most two sign changes, as is the case for most multi-player matrix games considered in the literature. We demonstrate that previous results for public goods games are easily recovered and extended using this observation. Further examples illustrate how focusing on the sign pattern of the gains from switching obviates the need for a more involved analysis. PMID:24380778

Pea, Jorge; Lehmann, Laurent; Nldeke, Georg

2014-04-01

46

DOOMd to switch: Superior cognitive flexibility in players of first person shooter games  

Microsoft Academic Search

The interest in the influence of videogame experience on our daily life is constantly growing. First Person Shooter (FPS) games require players to develop a flexible mindset to rapidly react to fast moving visual and auditory stimuli, and to switch back and forth between different subtasks. This study investigated whether and to which degree experience with such videogames generalizes to

Lorenza S. Colzato; Leeuwen van P. J. A; Wildenberg van den W. P. M; B. Hommel

2010-01-01

47

The Robustness of Stochastic Switching Networks Po-Ling Loh  

E-print Network

to each pswitch in a stochastic circuit. We analyze two constructions--simple series-parallel and general series-parallel circuits--and prove that simple series-parallel circuits are robust to small error perturbations, while general series-parallel circuits are not. Specifically, the total error introduced

Bruck, Jehoshua (Shuki)

48

The Synthesis and Analysis of Stochastic Switching Hongchao Zhoua,  

E-print Network

an error of size to each pswitch in a stochastic circuit. We analyze two constructions­simple series- parallel and general series-parallel circuits­and prove that simple series-parallel circuits are robust to small error perturbations, while general series-parallel circuits are not. Specifically, the total error

Bruck, Jehoshua (Shuki)

49

Robust Stable Payoff Distribution in Stochastic Cooperative Games  

E-print Network

concept of stability in a stochastic setting and introduce new concepts for robust payoff ... by a single scalar number in the form of monetary gain/payment or some ... multi-agent systems, is on the optimal coalition structure problem, i.e., how to...

2014-03-15

50

A novel adaptive switching function on fault tolerable sliding mode control for uncertain stochastic systems.  

PubMed

A novel switching function based on an optimization strategy for the sliding mode control (SMC) method has been provided for uncertain stochastic systems subject to actuator degradation such that the closed-loop system is globally asymptotically stable with probability one. In the previous researches the focus on sliding surface has been on proportional or proportional-integral function of states. In this research, from a degree of freedom that depends on designer choice is used to meet certain objectives. In the design of the switching function, there is a parameter which the designer can regulate for specified objectives. A sliding-mode controller is synthesized to ensure the reachability of the specified switching surface, despite actuator degradation and uncertainties. Finally, the simulation results demonstrate the effectiveness of the proposed method. PMID:24954808

Zahiripour, Seyed Ali; Jalali, Ali Akbar

2014-09-01

51

Stochastic Game Theory: For Playing Games, Not Just for Doing Theory  

Microsoft Academic Search

Recent theoretical advances have dramatically increased the relevance of game theory for predicting human behavior in interactive situations. By relaxing the classical assumptions of perfect rationality and perfect foresight, we obtain much improved explanations of initial decisions, dynamic patterns of learning and adjustment, and equilibrium steady-state distributions.

Jacob K. Goeree; Charles A. Holt

1999-01-01

52

Stochastic Game Theory: For Playing Games, Not Just for Doing Theory  

Microsoft Academic Search

Recent theoretical advances have dramatically increased the relevance of game theory for predicting human behavior in interactive situation. By relaxing the assumptions of perfect rationality and perfect foresight, we obtain much improved explanations of (i) initial decisions (ii)dynamic patterns of learning and adjustment, and (iii) equilibrium steady-state distributions.

Charles A. Holt; Jacob K. Goeree

1999-01-01

53

Stochastic game theory: For playing games, not just for doing theory  

PubMed Central

Recent theoretical advances have dramatically increased the relevance of game theory for predicting human behavior in interactive situations. By relaxing the classical assumptions of perfect rationality and perfect foresight, we obtain much improved explanations of initial decisions, dynamic patterns of learning and adjustment, and equilibrium steady-state distributions. PMID:10485862

Goeree, Jacob K.; Holt, Charles A.

1999-01-01

54

Stochastic switching in slow-fast systems: A large-fluctuation approach  

NASA Astrophysics Data System (ADS)

In this paper we develop a perturbation method to predict the rate of occurrence of rare events for singularly perturbed stochastic systems using a probability density function approach. In contrast to a stochastic normal form approach, we model rare event occurrences due to large fluctuations probabilistically and employ a WKB ansatz to approximate their rate of occurrence. This results in the generation of a two-point boundary value problem that models the interaction of the state variables and the most likely noise force required to induce a rare event. The resulting equations of motion of describing the phenomenon are shown to be singularly perturbed. Vastly different time scales among the variables are leveraged to reduce the dimension and predict the dynamics on the slow manifold in a deterministic setting. The resulting constrained equations of motion may be used to directly compute an exponent that determines the probability of rare events. To verify the theory, a stochastic damped Duffing oscillator with three equilibrium points (two sinks separated by a saddle) is analyzed. The predicted switching time between states is computed using the optimal path that resides in an expanded phase space. We show that the exponential scaling of the switching rate as a function of system parameters agrees well with numerical simulations. Moreover, the dynamics of the original system and the reduced system via center manifolds are shown to agree in an exponentially scaling sense.

Heckman, Christoffer R.; Schwartz, Ira B.

2014-02-01

55

Transcriptional bursting diversifies the behaviour of a toggle switch: hybrid simulation of stochastic gene expression.  

PubMed

Hybrid models for gene expression combine stochastic and deterministic representations of the underlying biophysical mechanisms. According to one of the simplest hybrid formalisms, protein molecules are produced in randomly occurring bursts of a randomly distributed size while they are degraded deterministically. Here, we use this particular formalism to study two key regulatory motifs-the autoregulation loop and the toggle switch. The distribution of burst times is determined and used as a basis for the development of exact simulation algorithms for gene expression dynamics. For the autoregulation loop, the simulations are compared to an analytic solution of a master equation. Simulations of the toggle switch reveal a number of qualitatively distinct scenarios with implications for the modelling of cell-fate selection. PMID:23354929

Bokes, Pavol; King, John R; Wood, Andrew T A; Loose, Matthew

2013-02-01

56

Stochastic and Boltzmann-like models for behavioral changes, and their relation to game theory  

E-print Network

In the last decade, stochastic models have shown to be very useful for quantitative modelling of social processes. Here, a configurational master equation for the description of behavioral changes by pair interactions of individuals is developed. Three kinds of social pair interactions are distinguished: Avoidance processes, compromising processes, and imitative processes. Computational results are presented for a special case of imitative processes: the competition of two equivalent strategies. They show a phase transition that describes the selforganization of a behavioral convention. This phase transition is further analyzed by examining the equations for the most probable behavioral distribution, which are Boltzmann-like equations. Special cases of Boltzmann-like equations do not obey the H-theorem and have oscillatory or even chaotic solutions. A suitable Taylor approximation leads to the socalled game dynamical equations (also known as selection-mutation equations in the theory of evolution).

Dirk Helbing

1998-05-22

57

Some Classes of Imperfect Information Finite State-Space Stochastic Games with Finite-Dimensional Solutions  

SciTech Connect

Stochastic games under imperfect information are typically computationally intractable even in the discrete-time/discrete-state case considered here. We consider a problem where one player has perfect information.A function of a conditional probability distribution is proposed as an information state.In the problem form here, the payoff is only a function of the terminal state of the system,and the initial information state is either linear ora sum of max-plus delta functions.When the initial information state belongs to these classes, its propagation is finite-dimensional.The state feedback value function is also finite-dimensional,and obtained via dynamic programming,but has a nonstandard form due to the necessity of an expanded state variable.Under a saddle point assumption,Certainty Equivalence is obtained and the proposed function is indeed an information state.

McEneaney, William M. [Departments of Mathematics and Mechanical/Aerospace Engineering, University of California at San Diego, La Jolla, CA 92093-0112 (United States)], E-mail: wmceneaney@ucsd.edu

2004-08-15

58

Beyond the Random Coil: Stochastic Conformational Switching in Intrinsically Disordered Proteins  

PubMed Central

Summary Intrinsically disordered proteins (IDPs) participate in critical cellular functions that exploit the flexibility and rapid conformational fluctuations of their native state. Limited information about the native state of IDPs can be gained by the averaging over many heterogeneous molecules that is unavoidable in ensemble approaches. We used single molecule fluorescence to characterize native state conformational dynamics in five synaptic proteins confirmed to be disordered by other techniques. For three of the proteins, SNAP-25, synaptobrevin and complexin, their conformational dynamics could be described with a simple semi-flexible polymer model. Surprisingly, two proteins, neuroligin and the NMDAR-2B glutamate receptor, were observed to stochastically switch among distinct conformational states despite the fact that they appeared intrinsically disordered by other measures. The hop-like intramolecular diffusion found in these proteins is suggested to define a class of functionality previously unrecognized for IDPs. PMID:21481779

Choi, Ucheor B.; McCann, James J.; Weninger, Keith R.; Bowen, Mark E.

2011-01-01

59

Cortical contractility triggers a stochastic switch to fast amoeboid cell motility.  

PubMed

3D amoeboid cell migration is central to many developmental and disease-related processes such as cancer metastasis. Here, we identify a unique prototypic amoeboid cell migration mode in early zebrafish embryos, termed stable-bleb migration. Stable-bleb cells display an invariant polarized balloon-like shape with exceptional migration speed and persistence. Progenitor cells can be reversibly transformed into stable-bleb cells irrespective of their primary fate and motile characteristics by increasing myosin II activity through biochemical or mechanical stimuli. Using a combination of theory and experiments, we show that, in stable-bleb cells, cortical contractility fluctuations trigger a stochastic switch into amoeboid motility, and a positive feedback between cortical flows and gradients in contractility maintains stable-bleb cell polarization. We further show that rearward cortical flows drive stable-bleb cell migration in various adhesive and non-adhesive environments, unraveling a highly versatile amoeboid migration phenotype. PMID:25679761

Ruprecht, Verena; Wieser, Stefan; Callan-Jones, Andrew; Smutny, Michael; Morita, Hitoshi; Sako, Keisuke; Barone, Vanessa; Ritsch-Marte, Monika; Sixt, Michael; Voituriez, Raphal; Heisenberg, Carl-Philipp

2015-02-12

60

Monty Hall Game  

NSDL National Science Digital Library

This resource consists of a Java applet and expository text. The applet consists of the Monty Hall game: a car is behind one door and goats are behind the other two doors. The player makes an initial choice and the host opens a different door. The player is then given the option of switching to the remaining door. The stochastic behavior of the host can be specified.

Siegrist, Kyle

61

Switching neuronal state: optimal stimuli revealed using a stochastically-seeded gradient algorithm.  

PubMed

Inducing a switch in neuronal state using energy optimal stimuli is relevant to a variety of problems in neuroscience. Analytical techniques from optimal control theory can identify such stimuli; however, solutions to the optimization problem using indirect variational approaches can be elusive in models that describe neuronal behavior. Here we develop and apply a direct gradient-based optimization algorithm to find stimulus waveforms that elicit a change in neuronal state while minimizing energy usage. We analyze standard models of neuronal behavior, the Hodgkin-Huxley and FitzHugh-Nagumo models, to show that the gradient-based algorithm: (1) enables automated exploration of a wide solution space, using stochastically generated initial waveforms that converge to multiple locally optimal solutions; and (2) finds optimal stimulus waveforms that achieve a physiological outcome condition, without a priori knowledge of the optimal terminal condition of all state variables. Analysis of biological systems using stochastically-seeded gradient methods can reveal salient dynamical mechanisms underlying the optimal control of system behavior. The gradient algorithm may also have practical applications in future work, for example, finding energy optimal waveforms for therapeutic neural stimulation that minimizes power usage and diminishes off-target effects and damage to neighboring tissue. PMID:25145955

Chang, Joshua; Paydarfar, David

2014-12-01

62

Differential games.  

NASA Technical Reports Server (NTRS)

General discussion of the theory of differential games with two players and zero sum. Games starting at a fixed initial state and ending at a fixed final time are analyzed. Strategies for the games are defined. The existence of saddle values and saddle points is considered. A stochastic version of a differential game is used to examine the synthesis problem.

Varaiya, P. P.

1972-01-01

63

Viscosity Solutions for a System of Integro-PDEs and Connections to Optimal Switching and Control of Jump-Diffusion Processes  

SciTech Connect

We develop a viscosity solution theory for a system of nonlinear degenerate parabolic integro-partial differential equations (IPDEs) related to stochastic optimal switching and control problems or stochastic games. In the case of stochastic optimal switching and control, we prove via dynamic programming methods that the value function is a viscosity solution of the IPDEs. In our setting the value functions or the solutions of the IPDEs are not smooth, so classical verification theorems do not apply.

Biswas, Imran H., E-mail: imran.biswas@sam.math.ethz.c [ETH-Zurich, Seminar fuer Angewandte Mathematik, D-MATH (Switzerland); Jakobsen, Espen R., E-mail: erj@math.ntnu.n [Norwegian University of Science and Technology (Norway); Karlsen, Kenneth H., E-mail: kennethk@math.uio.n [University of Oslo, Centre of Mathematics for Applications (Norway)

2010-08-15

64

Some Analytical Properties of the Model for Stochastic Evolutionary Games in Finite Populations with Non-uniform Interaction Rate  

NASA Astrophysics Data System (ADS)

Traditional evolutionary games assume uniform interaction rate, which means that the rate at which individuals meet and interact is independent of their strategies. But in some systems, especially biological systems, the players interact with each other discriminately. Taylor and Nowak (2006) were the first to establish the corresponding non-uniform interaction rate model by allowing the interaction rates to depend on strategies. Their model is based on replicator dynamics which assumes an infinite size population. But in reality, the number of individuals in the population is always finite, and there will be some random interference in the individuals' strategy selection process. Therefore, it is more practical to establish the corresponding stochastic evolutionary model in finite populations. In fact, the analysis of evolutionary games in a finite size population is more difficult. Just as Taylor and Nowak said in the outlook section of their paper, The analysis of non-uniform interaction rates should be extended to stochastic game dynamics of finite populations." In this paper, we are exactly doing this work. We extend Taylor and Nowak's model from infinite to finite case, especially focusing on the infiuence of non-uniform connection characteristics on the evolutionary stable state of the system. We model the strategy evolutionary process of the population by a continuous ergodic Markov process. Based on the limit distribution of the process, we can give the evolutionary stable state of the system. We make a complete classification of the symmetric 2 2 games. For each case game, the corresponding limit distribution of the Markov-based process is given when noise intensity is small enough. In contrast with most literatures in evolutionary games using the simulation method, all our results obtained are analytical. Especially, in the dominant-case game, coexistence of the two strategies may become evolutionary stable states in our model. This result can be used to explain the emergence of cooperation in the Prisoner is Dilemma Games to some extent. Some specific examples are given to illustrate our results.

Quan, Ji; Wang, Xian-Jia

2013-07-01

65

Stochastic search methods for nash equilibrium approximation in simulation-based games  

Microsoft Academic Search

We define the class of games called simulation-based games, in which the payos are available as an output of an or- acle (simulator), rather than specified analytically or us- ing a payo matrix. We then describe a convergent algo- rithm based on a hierarchical application of simulated an- nealing for estimating Nash equilibria in simulation-based games with finite-dimensional strategy sets.

Yevgeniy Vorobeychik; Michael P. Wellman

2008-01-01

66

Stochastic resonance via switching between the two stable limit cycles on a cylinder  

NASA Astrophysics Data System (ADS)

This paper deals with the determination of stochastic resonance (SR) in a driven bistable potential based on an embedding-based description in terms of an autonomous system of stochastic equations. It points out a criterion for SR on the basis of the relative position of limit cycles of the deterministic system.

Qian, Min; Zhang, Xue-Juan

2002-01-01

67

Gains from switching and evolutionary stability in multi-player matrix games  

E-print Network

on an average property of the population or the group with which it interacts. There are many situations, however, where the payoff to an individual depends critically on the strategy profile in the population-person prisoner0 s dilemma), such games have proven to be diffi

Alvarez, Nadir

68

Stochastic switching of TiO2-based memristive devices with identical initial memory states  

PubMed Central

In this work, we show that identical TiO2-based memristive devices that possess the same initial resistive states are only phenomenologically similar as their internal structures may vary significantly, which could render quite dissimilar switching dynamics. We experimentally demonstrated that the resistive switching of practical devices with similar initial states could occur at different programming stimuli cycles. We argue that similar memory states can be transcribed via numerous distinct active core states through the dissimilar reduced TiO2-x filamentary distributions. Our hypothesis was finally verified via simulated results of the memory state evolution, by taking into account dissimilar initial filamentary distribution. PMID:24994953

2014-01-01

69

Stochastic or systematic?: Seemingly random perceptual switching in bistable events triggered by transient unconscious cues  

E-print Network

switching Address for : Emily Ward or Brian Scholl reprints and Department of Psychology correspondence Yale when conflicting with the current percept. These results show how the content of incoming information a corresponding lack of underlying effortful computation, phenomenological randomness should not be taken to imply

Scholl, Brian

70

Circuit Game  

NSDL National Science Digital Library

In this activity, learners build a game that tests their steadiness. Learners construct the game board by setting up an electrical circuit and a wand. The object of the game is to move the wand from one end of the wire to the other without touching the wire and setting off the buzzer. Use this activity to introduce learners to concepts related to electrical circuits, switches, conductors, and insulators.

Fresno Community Science Workshop

2012-01-01

71

Journal of Statistical Physics, Vol. 117, Nos. 1/2, October 2004 ( 2004) Stochastic Stability in Spatial Games  

E-print Network

is that of a Prisoner's Dilemma game.(10) It has a unique Nash equilibrium, when both players defect. In fact, defec are better off when they cooperate. Dynam- ical aspects of spatial prisoner's dillema games were discussed such a strategy, then the small number of mutants playing a differ- ent strategy is eliminated from the population

Miekisz, Jacek

72

Switching Amplifiers  

NSDL National Science Digital Library

Created by Work-Ready Electronics, a project of the Advanced Technological Education, this module walks visitors through switching amplifiers. The site content is divided up into four sections: Switching Amplifiers Introduction, Class D Switching Amplifiers, Switching RF Power Amplifiers, and Troubleshooting. There is a quiz for each section to test what students learned in the module in the Knowledge Probe section, and the Learning Resources section contains four activities to help cement student understanding. There are also further resources - both print and Web based - for more information and two Questor games, a Flash quiz that reiterates the material covered. The Notebook function allows visitors to take notes and review them at any time. This is an excellent resource students and educators in electronics technician programs to introduce and explore switching amplifiers.

73

Evolutionary Game Theory: Theoretical Concepts and Applications to  

E-print Network

Evolutionary Game Theory: Theoretical Concepts and Applications to Microbial Communities Erwin Frey" behavior. A synthesis of evolutionary game theory, nonlinear dynamics, and the theory of stochastic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 Evolutionary game theory . . . . . . . . . . . . . . . . . . . . . . 6 1.3 Nonlinear dynamics

Frey, Erwin

74

A Stochastic Budgeting Analysis of Three Alternative Scenarios to Convert from Beef-Cattle Farming to Game Ranching  

Microsoft Academic Search

The main objective of this paper is to evaluate the profitability and financial feasibility of three alternative scenarios to convert from beef-cattle farming to game ranching. The analyses acknowledge the importance of quantifying the probability of failure or success when making investment decisions. Risk is incorporated into a standard net present value analysis using risk simulation. De-trended historical auction prices

Bennie Grove; Pieter R. Taljaard; Philip C. Cloete

2007-01-01

75

A Stochastic Dynamic Nash Game Analysis of Policies for Managing the Strategic Petroleum Reserves of Consuming Nations  

Microsoft Academic Search

In this paper we present a Nash dynamic game model of interactions among oil inventory and tariff policies for oil importing countries. The inventory policies consist of the rates for building up and drawing down strategic oil reserves, while the tariff policies consist of setting tariffs as a function of the state of the world oil market. The model represents

Frederic H. Murphy; Michael A. Toman; Howard J. Weiss

1987-01-01

76

Self-organizing patterns in an evolutionary rock-paper-scissors game for stochastic synchronized strategy updates  

NASA Astrophysics Data System (ADS)

We study a spatial evolutionary rock-paper-scissors game with synchronized strategy updating. Players gain their payoff from games with their four neighbors on a square lattice and can update their strategies simultaneously according to the logit rule, which is the noisy version of the best-response dynamics. For the synchronized strategy update two types of global oscillations (with an ordered strategy arrangement and periods of three and six generations) can occur in this system in the zero noise limit. At low noise values, all nine oscillating phases are present in the system by forming a self-organizing spatial pattern due to the comprising invasion and speciation processes along the interfaces separating the different domains.

Varga, Levente; Vukov, Jeromos; Szab, Gyrgy

2014-10-01

77

Self-organizing patterns in an evolutionary rock-paper-scissors game for stochastic synchronized strategy updates.  

PubMed

We study a spatial evolutionary rock-paper-scissors game with synchronized strategy updating. Players gain their payoff from games with their four neighbors on a square lattice and can update their strategies simultaneously according to the logit rule, which is the noisy version of the best-response dynamics. For the synchronized strategy update two types of global oscillations (with an ordered strategy arrangement and periods of three and six generations) can occur in this system in the zero noise limit. At low noise values, all nine oscillating phases are present in the system by forming a self-organizing spatial pattern due to the comprising invasion and speciation processes along the interfaces separating the different domains. PMID:25375580

Varga, Levente; Vukov, Jeromos; Szab, Gyrgy

2014-10-01

78

Deterministic priority mean-payoff games as limits of discounted games  

E-print Network

Deterministic priority mean-payoff games as limits of discounted games Hugo Gimbert1 and Wieslaw, Henzinger and Majum- dar [2] about discounted µ-calculus we show new surprising links between parity games and different classes of discounted games. 1 Introduction One of the major results in the theory of stochastic

Paris-Sud XI, Université de

79

Guaranteed cost control for networked control systems with stochastic protocols  

Microsoft Academic Search

This paper studies the guaranteed cost control problem of networked control systems with stochastic protocols. The plant is equipped with multiple actuator nodes. The communication process between the controller and the actuator nodes is governed by stochastic protocols and modeled as a stochastic sequence. The closed-loop networked control system is modeled as a switched system with stochastic switching. A sufficient

Hongbo Song; Li Yu; Guo-ping Liu

2011-01-01

80

Active Learning with Monty Hall in a Game Theory Class  

ERIC Educational Resources Information Center

The authors describe a game that students can play on the first day of a game theory class. The game introduces the 4 essential elements of any game and is designed so that its sequel, also played on the first day of class, has students playing the well-known Monty Hall game, which raises the question: Should you switch doors? By implementing a

Brokaw, Alan J.; Merz, Thomas E.

2004-01-01

81

Passivity of switched recurrent neural networks with time-varying delays.  

PubMed

This paper is concerned with the passivity analysis for switched neural networks subject to stochastic disturbances and time-varying delays. First, using the multiple Lyapunov functions method, a state-dependent switching law is designed to present a stochastic passivity condition. Second, a hysteresis switching law involving both the current state and the previous value of the switching signal are presented to avoid chattering resulted from the state-dependent switching. Third, based on the average dwell-time approach, a class of switching signals is determined to guarantee the switched neural network stochastically passive. Finally, three numerical examples are provided to illustrate the characteristics of three proposed switching laws. PMID:25576577

Lian, Jie; Wang, Jun

2015-02-01

82

Contextual Coalitional Games  

NASA Astrophysics Data System (ADS)

The study of cooperation among agents is of central interest in multi-agent systems research. A popular way to model cooperation is through coalitional game theory. Much research in this area has had limited practical applicability as regards real-world multi-agent systems due to the fact that it assumes deterministic payoffs to coalitions and in addition does not apply to multi-agent environments that are stochastic in nature. In this paper, we propose a novel approach to modeling such scenarios where coalitional games will be contextualized through the use of logical expressions representing environmental and other state, and probability distributions will be placed on the space of contexts in order to model the stochastic nature of the scenarios. More formally, we present a formal representation language for representing contextualized coalitional games embedded in stochastic environments and we define and show how to compute expected Shapley values in such games in a computationally efficient manner. We present the value of the approach through an example involving robotics assistance in emergencies.

Doherty, Patrick; Michalak, Tomasz; Sroka, Jacek; Sza?as, Andrzej

83

Inertia in strategy switching transforms the strategy evolution  

NASA Astrophysics Data System (ADS)

A recent experimental study [Traulsen , Proc. Natl. Acad. Sci.PNASA60027-842410.1073/pnas.0912515107 107, 2962 (2010)] shows that human strategy updating involves both direct payoff comparison and the cost of switching strategy, which is equivalent to inertia. However, it remains largely unclear how such a predisposed inertia affects 22 games in a well-mixed population of finite size. To address this issue, the inertia bonus (strategy switching cost) is added to the learner payoff in the Fermi process. We find how inertia quantitatively shapes the stationary distribution and that stochastic stability under inertia exhibits three regimes, with each covering seven regions in the plane spanned by two inertia parameters. We also obtain the extended 1/3 rule with inertia and the speed criterion with inertia; these two findings hold for a population above two. We illustrate the above results in the framework of the Prisoner's Dilemma game. As inertia varies, two intriguing stationary distributions emerge: the probability of coexistence state is maximized, or those of two full states are simultaneously peaked. Our results may provide useful insights into how the inertia of changing status quo acts on the strategy evolution and, in particular, the evolution of cooperation.

Zhang, Yanling; Fu, Feng; Wu, Te; Xie, Guangming; Wang, Long

2011-12-01

84

Risk Sensitive Impulse Control and Deterministic Games  

E-print Network

Risk Sensitive Impulse Control and Deterministic Games Peter Eichelsbacher \\Lambda and Tim Zajic y stochastic impulse control prob­ lems and deterministic control problems. In particular, we study the problem of characterizing the limit point of the value function of a stochastic impulse control problem as the variance

Bielefeld, University of

85

Backward Stochastic Differential Equations in Infinite Dimensions with Continuous Driver and Applications  

SciTech Connect

In this paper we prove the existence of a solution to backward stochastic differential equations in infinite dimensions with continuous driver under various assumptions. We apply our results to a stochastic game problem with infinitely many players.

Fuhrman, Marco [Dipartimento di Matematica, Politecnico di Milano, piazza Leonardo da Vinci 32 (Italy)], E-mail: marco.fuhrman@polimi.it; Hu, Ying [IRMAR, Universite Rennes 1, Campus de Beaulieu (France)], E-mail: ying.hu@univ-rennes1.fr

2007-09-15

86

Game Theory  

Microsoft Academic Search

This advanced text introduces the principles of noncooperative game theory - including strategic form games, Nash equilibria, subgame perfection, repeated games, and games of incomplete information - in a direct and uncomplicated style that will acquaint students with the broad spectrum of the field while highlighting and explaining what they need to know at any given point. The analytic material

Drew Fudenberg; Jean Tirole

1991-01-01

87

Math Games  

NSDL National Science Digital Library

In this 7.5 minute video educator Ian Byrd proposes three pencil and paper math games that are simple to learn and that develop students' ability to abstract their strategies. Game of 100 and Heaps, both Nim-type games, also develop facility in adding and subtracting whole numbers, while Cram strengthens spatial reasoning. All three games can be adapted, encouraging students to generalize their strategies into algorithms. Byrd includes links to Wikipedia articles on the games.

2013-01-01

88

Games in Geography.  

ERIC Educational Resources Information Center

Six games designed for classroom use are described in this book: 1) Shopping Game; 2) Bus Service Game; 3) North Sea Gas Game; 4) Railway Pioneers Game; 5) Development Game; and 6) Export Drive Game. The description of each game comprises a separate chapter, and includes information about the general aims of the game, how the various game elements

Walford, Rex

89

A Predictive Theory of Games  

E-print Network

Conventional noncooperative game theory hypothesizes that the joint strategy of a set of players in a game must satisfy an "equilibrium concept". All other joint strategies are considered impossible; the only issue is what equilibrium concept is "correct". This hypothesis violates the desiderata underlying probability theory. Indeed, probability theory renders moot the problem of what equilibrium concept is correct - every joint strategy can arise with non-zero probability. Rather than a first-principles derivation of an equilibrium concept, game theory requires a first-principles derivation of a distribution over joint (mixed) strategies. This paper shows how information theory can provide such a distribution over joint strategies. If a scientist external to the game wants to distill such a distribution to a point prediction, that prediction should be set by decision theory, using their (!) loss function. So the predicted joint strategy - the "equilibrium concept" - varies with the external scientist's loss function. It is shown here that in many games, having a probability distribution with support restricted to Nash equilibria - as stipulated by conventional game theory - is impossible. It is also show how to: i) Derive an information-theoretic quantification of a player's degree of rationality; ii) Derive bounded rationality as a cost of computation; iii) Elaborate the close formal relationship between game theory and statistical physics; iv) Use this relationship to extend game theory to allow stochastically varying numbers of players.

David H. Wolpert

2005-12-08

90

Asynchronous games: innocence without alternation  

E-print Network

of innocence in non-alternating games. The task is interesting, and far from easy. It requires the combination it contains only alternating plays. The category of alternating strategies introduced by Joyal was later be distinguished from its dual, noted `, by enforcing a switching policy on plays ­ ensuring for instance

Melliès, Paul-André - Laboratoire Preuves, Programmes et Systèmes, Université Paris 7

91

Combat games  

NASA Technical Reports Server (NTRS)

A mathematical formulation is proposed of a combat game between two opponents with offensive capabilities and offensive objective is proposed. Resolution of the combat involves solving two differential games with state constraints. Depending on the game dynamics and parameters, the combat can terminate in one of four ways: the first player wins; the second player wins; a draw (neither wins); or joint capture. In the first two cases, the optimal strategies of the two players are determined from suitable zero-sum games, whereas in the latter two the relevant games are nonzero-sum. Further, to avoid certain technical difficulties, the concept of a delta-combat game is introduced.

Ardema, M. D.; Heymann, M.; Rajan, N.

1985-01-01

92

Identifying effective connectivity parameters in simulated fMRI: a direct comparison of switching linear dynamic system, stochastic dynamic causal, and multivariate autoregressive models  

PubMed Central

The number and variety of connectivity estimation methods is likely to continue to grow over the coming decade. Comparisons between methods are necessary to prune this growth to only the most accurate and robust methods. However, the nature of connectivity is elusive with different methods potentially attempting to identify different aspects of connectivity. Commonalities of connectivity definitions across methods upon which base direct comparisons can be difficult to derive. Here, we explicitly define effective connectivity using a common set of observation and state equations that are appropriate for three connectivity methods: dynamic causal modeling (DCM), multivariate autoregressive modeling (MAR), and switching linear dynamic systems for fMRI (sLDSf). In addition while deriving this set, we show how many other popular functional and effective connectivity methods are actually simplifications of these equations. We discuss implications of these connections for the practice of using one method to simulate data for another method. After mathematically connecting the three effective connectivity methods, simulated fMRI data with varying numbers of regions and task conditions is generated from the common equation. This simulated data explicitly contains the type of the connectivity that the three models were intended to identify. Each method is applied to the simulated data sets and the accuracy of parameter identification is analyzed. All methods perform above chance levels at identifying correct connectivity parameters. The sLDSf method was superior in parameter estimation accuracy to both DCM and MAR for all types of comparisons. PMID:23717258

Smith, Jason F.; Chen, Kewei; Pillai, Ajay S.; Horwitz, Barry

2013-01-01

93

Online Games  

NSDL National Science Digital Library

This is the home of resource collections that support the use of online games and environments for teaching geoscience. There is now a collection of relevant references, examples of online games, and ideas for teaching with online games suggested by participants in the Spring 2008 workshop.

94

Serious Games.  

ERIC Educational Resources Information Center

The author explores the ways in which games can be used to instruct, inform, and educate. The first chapter discusses games in a general manner. The next five chapters present the use of games for improving education, for guidance in occupational choice and training, and for solving problems and decision making in physical and social sciences,

Abt, Clark C.

95

Equation Games!  

NSDL National Science Digital Library

Several sites to practice solving equations. Play one of the following games: 1) algebra quiz/ alien millionaire 2) Battleship: solve equations to win! 3) connect four: solve equations to take a turn- 2 player game 4) Rags to Riches: millionaire type game asking questions about solving equations ...

Troff, Ms.

2008-06-23

96

Stochastic resonance in binocular rivalry.  

PubMed

When a different image is presented to each eye, visual awareness spontaneously alternates between the two images--a phenomenon called binocular rivalry. Because binocular rivalry is characterized by two marginally stable perceptual states and spontaneous, apparently stochastic, switching between them, it has been speculated that switches in perceptual awareness reflect a double-well-potential type computational architecture coupled with noise. To characterize this noise-mediated mechanism, we investigated whether stimulus input, neural adaptation, and inhibitory modulations (thought to underlie perceptual switches) interacted with noise in such a way that the system produced stochastic resonance. By subjecting binocular rivalry to weak periodic contrast modulations spanning a range of frequencies, we demonstrated quantitative evidence of stochastic resonance in binocular rivalry. Our behavioral results combined with computational simulations provided insights into the nature of the internal noise (its magnitude, locus, and calibration) that is relevant to perceptual switching, as well as provided novel dynamic constraints on computational models designed to capture the neural mechanisms underlying perceptual switching. PMID:16183099

Kim, Yee-Joon; Grabowecky, Marcia; Suzuki, Satoru

2006-02-01

97

Stochasticity and evolutionary stability.  

PubMed

In stochastic dynamical systems, different concepts of stability can be obtained in different limits. A particularly interesting example is evolutionary game theory, which is traditionally based on infinite populations, where strict Nash equilibria correspond to stable fixed points that are always evolutionarily stable. However, in finite populations stochastic effects can drive the system away from strict Nash equilibria, which gives rise to a new concept for evolutionary stability. The conventional and the new stability concepts may apparently contradict each other leading to conflicting predictions in large yet finite populations. We show that the two concepts can be derived from the frequency dependent Moran process in different limits. Our results help to determine the appropriate stability concept in large finite populations. The general validity of our findings is demonstrated showing that the same results are valid employing vastly different co-evolutionary processes. PMID:17025470

Traulsen, Arne; Pacheco, Jorge M; Imhof, Lorens A

2006-08-01

98

Promoting cooperation by local contribution under stochastic win-stay-lose-shift mechanism  

NASA Astrophysics Data System (ADS)

We introduce a stochastic win-stay-lose-shift (WSLS) mechanism into evolutionary Prisoners Dilemma on small-world networks. At each time step, after playing with all its immediate neighbors, each individual gets a score to evaluate its performance in the game. The score is a linear combination of an individuals total payoff (i.e., individual gain from the group) and local contribution to its neighbors (i.e., individual donation to the group). If ones actual score is not larger than its desired score aspiration, it switches current strategy to the opposite one with the probability depending on the difference between the two scores. Under this stochastic WSLS regime, we assume that each focal individual gains its fixed score aspiration under the condition of full cooperation in its neighborhood, and find that cooperation is significantly enhanced under some certain parameters of the model by studying the evolution of cooperation. We also explore the influences of different values of learning rate and intensity of deterministic switch on the evolution of cooperation. Simulation results show that cooperation level monotonically increases with the relative weight of the local contribution to the score. For much low intensity of deterministic switch, cooperation is to a large extent independent of learning rate, and full cooperation can be reached when relative weight is not less than 0.5. Otherwise, cooperation level is affected by the value of learning rate. Besides, we find that the cooperation level is not sensitive to the topological parameters. To explain these simulation results, we provide corresponding analytical results based on mean-field approximation, and find out that simulation results are in close agreement with the analytical ones. Our work may be helpful in understanding the cooperative behavior in social systems based on this stochastic WSLS mechanism.

Chen, Xiaojie; Fu, Feng; Wang, Long

2008-09-01

99

Electric Switches  

NSDL National Science Digital Library

In this activity, learners incorporate a simple switch into a battery/bulb circuit. Learners will use their knowledge of circuits to design and make their own switches using common materials. Learners will also identify switches found in common appliances.
Note: This activity is designed to be done under the supervision of an educator familiar with electrical and electronic concepts.

2014-05-22

100

Switching Power Supplies  

NSDL National Science Digital Library

Created by Work-Ready Electronics, a project of the Advanced Technological Education program, this module walks visitors through the basics of switching power supplies. The content of the site is divided into four areas: SMPS Basics and Switching Regulators; DC-DC Converters: Charge Pumps, Forwards Converters and Flyback Converters; Inverters, UPS and Hysteresis Curve, and SMPS: Advantages, Disadvantages and Troubleshooting. There is a quiz for each area in the Knowledge Probe area, and the Learning Resources section contains five activities to help cement student understanding. There are also further resources - both print and Web based - for more information and two Questors, a Flash trivia game. The Notebook function allows visitors to take notes and review them at any time. This is an excellent resource students and educators in electronics technician programs.

101

International Journal of Game Theory manuscript No. (will be inserted by the editor)  

E-print Network

International Journal of Game Theory manuscript No. (will be inserted by the editor) Algorithms for uniform optimal strategies in two-player zero-sum stochastic games with perfect information Konstantin games with perfect information, in each state at most one player has more than one action available. We

Gesbert, David

102

A Probabilistic-Numerical Approximation for an Obstacle Problem Arising in Game Theory  

SciTech Connect

We investigate a two-player zero-sum stochastic differential game in which one of the players has more information on the game than his opponent. We show how to construct numerical schemes for the value function of this game, which is given by the solution of a quasilinear partial differential equation with obstacle.

Gruen, Christine, E-mail: christine.gruen@univ-brest.fr [Laboratoire de Mathematiques de Brest UMR 6205 (France)

2012-12-15

103

Universal Parameter Optimisation in Games Based on Levente Kocsis, Csaba Szepesvari  

E-print Network

of parameters considered. Keywords: SPSA; Stochastic Gradient Ascent; Games; Learning; Poker 1. Introduction Any video game. For the sake of specificity, consider MMORPGs. In an MMORPG a reasonable objectiveUniversal Parameter Optimisation in Games Based on SPSA Levente Kocsis, Csaba Szepesv´ari MTA

Szepesvari, Csaba

104

Creating an immersive game world with evolutionary fuzzy cognitive maps.  

PubMed

The Evolutionary Fuzzy Cognitive Map improves on serious games by modeling both fuzzy and probabilistic causal relationships among the game's variables. It permits asynchronous updates of the variables so that they can evolve dynamically and stochastically. These improvements give players a more engaging, immersive experience. PMID:20650711

Cai, Yundong; Miao, Chunyan; Tan, Ah-Hwee; Shen, Zhiqi; Li, Boyang

2010-01-01

105

Quantum Games  

NSDL National Science Digital Library

Scientists studying quantum computation offer new perspectives on coin tossing, chess, and game theory. Theorists intend to apply the peculiarities of quantum behavior to game theory, two previously unrelated fields. These researchers propose that the possibility of a mixed state permits quantum-game strategies that in theory can be more successful than conventional ones. This new type of modeling using quantum computers could greatly affect fields such as economics, international relations, and computer science.

Peterson, Ivars

2007-03-03

106

Multi-player games on the cycle.  

PubMed

In multi-player games n individuals interact in any one encounter and derive a payoff from that interaction. We assume that individuals adopt one of two strategies, and we consider symmetric games, which means the payoff depends only on the number of players using either strategy, but not on any particular configuration of the encounter. On the cycle we assume that any string of n neighbouring players interacts. We study fixation probabilities of stochastic evolutionary dynamics. We derive analytical results on the cycle both for linear and exponential fitness for any intensity of selection, and compare those to results for the well-mixed population. As particular examples we study multi-player public goods games, stag hunt games and snowdrift games. PMID:21907215

van Veelen, Matthijs; Nowak, Martin A

2012-01-01

107

Opportunistic migration in spatial evolutionary games  

NASA Astrophysics Data System (ADS)

We study evolutionary games in a spatial diluted grid environment in which agents strategically interact locally but can also opportunistically move to other positions within a given migration radius. Using the imitation of the best rule for strategy revision, it is shown that cooperation may evolve and be stable in the Prisoner's Dilemma game space for several migration distances but only for small game interaction radius while the Stag Hunt class of games become fully cooperative. We also show that only a few trials are needed for cooperation to evolve, i.e., searching costs are not an issue. When the stochastic Fermi strategy update protocol is used cooperation cannot evolve in the Prisoner's Dilemma if the selection intensity is high in spite of opportunistic migration. However, when imitation becomes more random, fully or partially cooperative states are reached in all games for all migration distances tested and for short to intermediate interaction radii.

Buesser, Pierre; Tomassini, Marco; Antonioni, Alberto

2013-10-01

108

QB1 - Stochastic Gene Regulation  

SciTech Connect

Summaries of this presentation are: (1) Stochastic fluctuations or 'noise' is present in the cell - Random motion and competition between reactants, Low copy, quantization of reactants, Upstream processes; (2) Fluctuations may be very important - Cell-to-cell variability, Cell fate decisions (switches), Signal amplification or damping, stochastic resonances; and (3) Some tools are available to mode these - Kinetic Monte Carlo simulations (SSA and variants), Moment approximation methods, Finite State Projection. We will see how modeling these reactions can tell us more about the underlying processes of gene regulation.

Munsky, Brian [Los Alamos National Laboratory

2012-07-23

109

Potential Games  

Microsoft Academic Search

We define and discuss several notions of potential functions for games in strategic form. We characterize games that have a potential function, and we present a variety of applications.Journal of Economic LiteratureClassification Numbers:C72, C73.

Dov Monderer; Lloyd S. Shapley

1996-01-01

110

Tangram Game  

NSDL National Science Digital Library

Tangram is an ancient game that originated in China. In the game, your goal is to try to create the shape shown using the pieces provided. You cannot overlap pieces, and they all have to be used. It is a lot harder than it looks!

2008-01-01

111

Game Time!  

ERIC Educational Resources Information Center

In this article, the authors present a classic playground game called "Sharks and Fishes" to introduce second- to fourth-grade students to the concept of "predation," or the relationships between a predator and its prey. By incorporating the game in a learning cycle on predation, students not only learn about predation in a memorable way, but they

Marek, Edmund; Howell, Beverly

2006-01-01

112

Fun & Games  

ERIC Educational Resources Information Center

This article discusses how math skills, teamwork and higher-level thinking come together when students create strategic board games. In this article, the authors provide a glimpse of what it was like to be part of "To the Sun!," a game designed by students in the fifth-grade class at Olive Martin School in Lake Villa, IL. Students combined a math

Jacobs, Amy; Kohl, Julie

2007-01-01

113

Inuit Games.  

ERIC Educational Resources Information Center

The purpose of this publication is to record the traditional games played by the Inuit and to preserve a unique form of sports and recreation found in northern Canada. Written in English and Inupiaq, this manual contains descriptions of games played throughout the Arctic with special emphasis on the Keewatin Region, suggestions for teaching Inuit

Keewatin Regional Education Authority, Rankin Inlet (Northwest Territories).

114

Ethernet Switching  

NSDL National Science Digital Library

Created by Tony Castro of the Information and Communications Technologies Center (ICT), this simulation demonstrates ethernet switching. The animation depicts three separate local area networks connecting to an ethernet hub. The animation also includes descriptive text. This resource would be a helpful addition to any course on information and communications technologies as it allows students to see exactly how ethernet switching works.

Castro, Tony

2012-10-25

115

Good Game/Bad Game.  

ERIC Educational Resources Information Center

Discusses the characteristics of "good" and "bad" games used in adventure- or experiential-education settings. Good games are simultaneously familiar and exotic; have minimal rules and no clothing requirements; have an achievable "flow state"; and are cooperative, challenging, and accepting of failure that advances the group's problem-solving

Rohnke, Karl

1998-01-01

116

Stability Analysis and Stabilization of Randomly Switched Systems  

E-print Network

Stability Analysis and Stabilization of Randomly Switched Systems Debasish Chatterjee, and Daniel Liberzon, Abstract-- This article is concerned with stability analysis and stabilization of randomly for stochastic stability of the switched system when the subsystems do not possess control inputs; not every

Sontag, Eduardo

117

BSDE representations for optimal switching problems with controlled volatility  

E-print Network

positive cost given by the function c. Of course, one of the mode of production may possibly consist the entirely probabilistic schemes presented in [3] or [7]. Key words: Stochastic control, Switching problems to the obtention of a probabilistic representation for a general form of continuous optimal switching problems

Paris-Sud XI, Université de

118

The Switch Task for Children: Measuring Mental Flexibility in Young Children  

ERIC Educational Resources Information Center

Age-related changes in mental flexibility, in the form of task switching, were assessed in 292 children (58-156 months old). Task switching was examined with a new task for young children, the Switch Task for Children (STC). The STC consists of two easy, comparable games and does not require reading skills, which makes it suitable for children

Dibbets, Pauline; Jolles, Jellemer

2006-01-01

119

arXiv:cond-mat/0206093v1[cond-mat.stat-mech]6Jun2002 Quantum Game Theory  

E-print Network

arXiv:cond-mat/0206093v1[cond-mat.stat-mech]6Jun2002 Quantum Game Theory Michael L¨assig Institut f is introduced that describes stochastic effects in game theory. In a biological context, such effects Classical game theory is a well-known mathematical formalization of competitions with rational rules and ra

Lässig, Michael

120

Gene Switches  

NSDL National Science Digital Library

In this activity, learners explore how genetic switches function and the role of genetic switches in the process of evolution. To make these concepts less abstract and more understandable, learners first view a series of video clips and animations from the HHMI DVD (or online) "Evolution: Constant Change and Common Threads." Then, learners construct a model of a gene switch using craft materials or FridgiGears (magnetic gears). This activity can be done as a demonstration, a student inquiry activity, or a combination of the two.

2013-07-30

121

Game reductions and FAR for infinite games  

E-print Network

Game reductions and FAR for infinite games GAMES, Bordeaux 2004 Lukasz Kaiser Mathematische Grundlagen der Informatik RWTH Aachen #12;Motivation I Parity games with finite number of colours are positionally determined Muller games with finite number of colours are not positionally determined Finitely

Kaiser, £ukasz

122

N-player stochastic differential games  

NASA Technical Reports Server (NTRS)

The paper presents conditions which guarantee that the control strategies adopted by N players constitute an efficient solution, an equilibrium, or a core solution. The system dynamics are described by an Ito equation, and all players have perfect information. When the set of instantaneous joint costs and velocity vectors is convex, the conditions are necessary.

Varaiya, P.

1976-01-01

123

Stochastic Evolutionary Game Dynamics Dean Foster  

E-print Network

of natural selection. One of its limitations, however, is that it does not capture the notion of long become one of the principal tools for analyzing the dynamics of natural selection. The essential idea pointed out, however, this definition does not capture the full meaning of dynamical stability. We need

Foster, Dean P.

124

Cloud Games  

NSDL National Science Digital Library

Play these two matching games from the Web Weather for Kids site to pair cloud images with their names/types! Developed by the University Corporation for Atmospheric Research, this site requires Java.

Programs, University C.

2010-01-01

125

Tangram Game  

NSDL National Science Digital Library

In this online math game from Cyberchase, learners use seven different geometric shapes to make fun pictures. Learners use buttons to rotate, break apart, or put together pieces to create images including a rabbit, cat head, duck and more.

Wnet

2011-01-01

126

Nim Games  

NSDL National Science Digital Library

"A take-away game in which players alternately remove counters, and the player who takes the last counter wins." ( NCTM) Students look for patterns in the numbers on which the computer lands at each turn.

National Council of Teachers of Mathematics

2010-06-24

127

Game Animals of Colorado.  

ERIC Educational Resources Information Center

This booklet is intended to familiarize the reader with game animals typical of Colorado. Discussions in both English and Spanish are presented. Discussions cover the management of game animals, individual game species, and introduced species of game animals. (RE)

Colorado State Div. of Wildlife, Denver.

128

Donor Tag Game  

MedlinePLUS

... Games > Donor Tag Game Printable Version Donor Tag Game This feature requires version 6 or later of ... Blood Donor Community Donor Stories Recipient Stories SleevesUp Games Facebook Fanbox Avatars and Badges Banners eCards Enter ...

129

Models of Games Education.  

ERIC Educational Resources Information Center

Physical educators should be selective in deciding what games to include in the games curriculum. Several theoretical frameworks for selecting and teaching games are discussed, and a framework for developing a well-balanced games program is suggested. (IAH)

Werner, Peter; Almond, Len

1990-01-01

130

Acceleration switch  

DOEpatents

The disclosure relates to an improved integrating acceleration switch of the type having a mass suspended within a fluid filled chamber, with the motion of the mass initially opposed by a spring and subsequently not so opposed.

Abbin, Jr., Joseph P. (Albuquerque, NM); Devaney, Howard F. (Cedar Crest, NM); Hake, Lewis W. (Albuquerque, NM)

1982-08-17

131

Computer Game  

NASA Technical Reports Server (NTRS)

Using NASA studies of advanced lunar exploration and colonization, KDT Industries, Inc. and Wesson International have developed MOONBASE, a computer game. The player, or team commander, must build and operate a lunar base using NASA technology. He has 10 years to explore the surface, select a site and assemble structures brought from Earth into an efficient base. The game was introduced in 1991 by Texas Space Grant Consortium.

1992-01-01

132

Matching Game  

NSDL National Science Digital Library

Can you distinguish lion tracks from chimpanzee tracks? This online Flash version of the classic match game hones learners' thinking skills with diverse science topics like technology, biology, and astronomy. Learners can choose to match animals with their tracks, stars to their constellations, technological innovations to their year of invention or fruits to their trees. There are three levels of play (easy, medium, and hard). Each game includes informational background related to the topic.

2012-06-26

133

24-Game  

NSDL National Science Digital Library

This Java applet game promotes mental math and strategic thinking skills using a card from Suntex's 24 Game. The player is presented with four numbers (1-9) on a card. The goal is to manipulate each of the four numbers only once so that the end result is 24. Addition, subtraction, multiplication, division and/or parentheses maybe used and the player must be able to enter the expression using the online calculator.

Doorman, Michiel

2012-01-07

134

Imitation games  

NASA Astrophysics Data System (ADS)

Mutual-imitation games among artificial birds are studied. By employing a variety of mappings and game rules, the evolution to the edge between chaos and windows is confirmed. Some other general features are observed, including punctuated equilibria, and successive alternations of dominant species with temporal complexity. It is also shown that diversity of species is drastically enhanced if the songs are represented by discrete symbols.

Suzuki, Junji; Kaneko, Kunihiko

1994-08-01

135

Nucleosome Switches  

NASA Astrophysics Data System (ADS)

We present a statistical-mechanical model for the positioning of nucleosomes along genomic DNA molecules as a function of the strength of the binding potential and the chemical potential of the nucleosomes. We show that a significant section of the DNA is composed of two-level nucleosome switching regions where the nucleosome distribution undergoes a localized, first-order transition. The location of the nucleosome switches shows a strong correlation with the location of gene-regulation regions.

Schwab, David J.; Bruinsma, Robijn F.; Rudnick, Joseph; Widom, Jonathan

2008-06-01

136

Stability Analysis and Stabilization of Randomly Switched Systems Debasish Chatterjee and Daniel Liberzon  

E-print Network

Stability Analysis and Stabilization of Randomly Switched Systems Debasish Chatterjee and Daniel Liberzon Abstract. This article is concerned with stability analysis and stabilization of randomly switched conditions for stochastic stability of the switched system, when the subsystems do not possess control inputs

Liberzon, Daniel

137

Game Theory Social Intelligence  

E-print Network

Game Theory Social Intelligence Daniel Polani Game Theory ­ p.1/11 Reminders: Dominance Def): an outcome is Pareto dominated if all players would prefer some other outcome. Game Theory ­ p.3/11 Dominance strategy. Game The #12;Comments on Game Theory Remark: if the prisoner's dilemma game is being iterated

Polani, Daniel

138

Women's Game Conference 2005  

Microsoft Academic Search

The Game Initiative's Women's Game Conference focuses on women in the computer and video game industry. The conference program includes career paths for women in the industry, gender inclusive game design and women and girls as consumers of games.The 2005 Women's Game Conference takes place October 26-27, 2005 - the day before and the first day of - the Austin

Newton Lee

2005-01-01

139

[Biofeedback computer games].  

PubMed

Biofeedback systems for game training are reviewed. The origins, evolution, main principles, and specific features of biofeedback game training are considered. A line of novel biofeedback game systems is described. These game systems can be classified as game screens included into an integrated treating system or as individual computer games based on biological feedback. PMID:17882776

Dzhafarov, O A; Donskaia, O G; Zubkov, A A

2007-01-01

140

Multipotential Games Dov Monderer  

E-print Network

Multipotential Games Dov Monderer Technion­Israel Institute of Technology E-mail: dov@ie.technion.ac.il July 2006 Abstract We introduce and analyze q-potential games and q-congestion games, where q is a positive integer. A 1-potential (congestion) game is a po- tential (congestion) game. We show that a game

Monderer, Dov

141

Optional games on cycles and complete graphs.  

PubMed

We study stochastic evolution of optional games on simple graphs. There are two strategies, A and B, whose interaction is described by a general payoff matrix. In addition, there are one or several possibilities to opt out from the game by adopting loner strategies. Optional games lead to relaxed social dilemmas. Here we explore the interaction between spatial structure and optional games. We find that increasing the number of loner strategies (or equivalently increasing mutational bias toward loner strategies) facilitates evolution of cooperation both in well-mixed and in structured populations. We derive various limits for weak selection and large population size. For some cases we derive analytic results for strong selection. We also analyze strategy selection numerically for finite selection intensity and discuss combined effects of optionality and spatial structure. PMID:24780293

Jeong, Hyeong-Chai; Oh, Seung-Yoon; Allen, Benjamin; Nowak, Martin A

2014-09-01

142

Natural games  

E-print Network

Behavior in the context of game theory is described as a natural process that follows the 2nd law of thermodynamics. The rate of entropy increase as the payoff function is derived from statistical physics of open systems. The thermodynamic formalism relates everything in terms of energy and describes various ways to consume free energy. This allows us to associate game theoretical models of behavior to physical reality. Ultimately behavior is viewed as a physical process where flows of energy naturally select ways to consume free energy as soon as possible. This natural process is, according to the profound thermodynamic principle, equivalent to entropy increase in the least time. However, the physical portrayal of behavior does not imply determinism. On the contrary, evolutionary equation for open systems reveals that when there are three or more degrees of freedom for behavior, the course of a game is inherently unpredictable in detail because each move affects motives of moves in the future. Eventually, when no moves are found to consume more free energy, the extensive-form game has arrived at a solution concept that satisfies the minimax theorem. The equilibrium is Lyapunov-stable against variation in behavior within strategies but will be perturbed by a new strategy that will draw even more surrounding resources to the game. Entropy as the payoff function also clarifies motives of collaboration and subjective nature of decision making.

Jani Anttila; Arto Annila

2011-03-05

143

Optical switch  

DOEpatents

An optical switching device is provided whereby light from a first glass fiber or a second glass fiber may be selectively transmitted into a third glass fiber. Each glass fiber is provided with a focusing and collimating lens system. In one mode of operation, light from the first glass fiber is reflected by a planar mirror into the third glass fiber. In another mode of operation, light from the second glass fiber passes directly into the third glass fiber. The planar mirror is attached to a rotatable table which is rotated to provide the optical switching. 3 figs.

Reedy, R.P.

1987-11-10

144

Optical switch  

DOEpatents

An optical switching device (10) is provided whereby light from a first glass fiber (16) or a second glass fiber (14) may be selectively transmitted into a third glass fiber (18). Each glass fiber is provided with a focusing and collimating lens system (26, 28, 30). In one mode of operation, light from the first glass fiber (16) is reflected by a planar mirror (36) into the third glass fiber (18). In another mode of operation, light from the second glass fiber (14) passes directly into the third glass fiber (18). The planar mirror (36) is attached to a rotatable table (32) which is rotated to provide the optical switching.

Reedy, Robert P. (Livermore, CA)

1987-01-01

145

Optical switch  

DOEpatents

An optical switching device is provided whereby light from a first glass fiber or a second glass fiber may be selectively transmitted into a third glass fiber. Each glass fiber is provided with a focusing and collimating lens system. In one mode of operation, light from the first glass fiber is reflected by a planar mirror into the third glass fiber. In another mode of operation, light from the second glass fiber passes directly into the third glass fiber. The planar mirror is attached to a rotatable table which is rotated to provide the optical switching.

Reedy, R.P.

1985-01-18

146

Factor Game  

NSDL National Science Digital Library

This is an interactive applet game exercises a student's factoring ability. A student can play against the computer or against a friend on grids containing the numbers 1-30, 1-49, or 1-100. Each player in turn chooses a number from the board, and then the opponent claims all of its remaining proper factors. A player's score is the sum of all the numbers and factors she/he has chosen. When there are no numbers remaining with unclaimed factors, the game ends and the player with the greater total is the winner.

Adapted with permission from "Prime Time: Factors and Multiples," Connected Mathematics Project, G. Lappan, J. Fey, W. Fitzgerald, S. Friel and E. Phillips

2000-01-01

147

Marble Game  

NSDL National Science Digital Library

In this activity, learners construct a simple game to test their hand-eye coordination and steadiness of hand. Learners draw face in a small piece of wood, drill indentations in the eyes and nose, and glue a clear cup over the face, with 3 marbles inside. Learners attach two craft sticks to create a handle and add decorations. To play, they slowly move the game board around until all marbles land in a hole. This toy can also be used to demonstrate how objects in nature tend to seek the position of lowest energy.

Workshop, Watsonville E.

2011-01-01

148

Mating Game  

NSDL National Science Digital Library

In this game (on pages 14-21), learners explore how each human being inherits genetic traits such as eye color. Learners use "Smiley Mother's Genes" cards and "Smiley Father's Genes" cards to "mate" them into a Smiley Face Baby that the learner draws. The Mating Game Results page shows how the pairs translate into features such as face, eye, and mouth shape, skin color, hair type, and sex. The Thinking It Over section asks questions about how learners would feel if their baby had "Upsidedown Smile Syndrome," which can open up a discussion about genetic engineering.

University of Nebraska State Museum

2002-01-01

149

Video game use and cognitive performance: does it vary with the presence of problematic video game use?  

PubMed

Action video game players have been found to outperform nonplayers on a variety of cognitive tasks. However, several failures to replicate these video game player advantages have indicated that this relationship may not be straightforward. Moreover, despite the discovery that problematic video game players do not appear to demonstrate the same superior performance as nonproblematic video game players in relation to multiple object tracking paradigms, this has not been investigated for other tasks. Consequently, this study compared gamers and nongamers in task switching ability, visual short-term memory, mental rotation, enumeration, and flanker interference, as well as investigated the influence of self-reported problematic video game use. A total of 66 participants completed the experiment, 26 of whom played action video games, including 20 problematic players. The results revealed no significant effect of playing action video games, nor any influence of problematic video game play. This indicates that the previously reported cognitive advantages in video game players may be restricted to specific task features or samples. Furthermore, problematic video game play may not have a detrimental effect on cognitive performance, although this is difficult to ascertain considering the lack of video game player advantage. More research is therefore sorely needed. PMID:24111600

Collins, Emily; Freeman, Jonathan

2014-03-01

150

Alphabet Games  

NSDL National Science Digital Library

Have fun with the alphabet! Watch the video How the Alphabet Got It s Order Practice matching letters with Paint by Letter. Pick the object that starts with the letter with theABC Game-Pick the letter. Order the alphabet with Alphabet Order Whac-A-Mole! Help Dog spell words with Dog s Letter Pit ...

Lerdahl, Miss

2010-02-23

151

Math Games  

ERIC Educational Resources Information Center

Math games bring out kids' natural love of numbers. Yet in the waning days of school, students can't wait for that final bell to ring. Each summer, most students lose about two months of mathematical computation skills. So how do teachers keep their students focused on math up till the end? Before sending them off for the summer, get them hooked

Lorenzi, Natalie

2012-01-01

152

Ordering Game  

NSDL National Science Digital Library

This interactive game gives students practice in ordering sets of whole numbers, integers, fractions, decimals, and the sizes of circles. Students re-order a group of numbers or objects in a line from least to greatest by dragging them. The activity is timed and points are awarded.

2011-01-01

153

Game Theory: Games and Behavior  

NSDL National Science Digital Library

Economics professor, Ariel Rubinstein, created this website to provide teachers some basic instruction in Game Theory along with "free user-friendly didactic tools for conducting web-based thought experiments." The materials are based on his experience in teaching a course in Game Theory using web-based experiments during the years 1988 to 1999. Sample problems are available in five languages: English, Portuguese, Spanish, Russian and Slovak. Some articles are available from the home page, but access to the instructional material requires instructors and students to register at no cost. A slide show reviews the registration process and demonstrates the web-based course.

Rubinstein, Ariel

154

Teaching Using Computer Games  

ERIC Educational Resources Information Center

Computer games have long been used for teaching. Current reviews lack categorization and analysis using learning models which would help instructors assess the usefulness of computer games. We divide the use of games into two classes: game playing and game development. We discuss the Input-Process-Outcome (IPO) model for the learning process when

Miller, Lee Dee; Shell, Duane; Khandaker, Nobel; Soh, Leen-Kiat

2011-01-01

155

Socializing in mobile gaming  

Microsoft Academic Search

Currently the most prevalent format for mobile gaming is the single-player variety, where users interact with the game's artificial intelligence within a number of genres such as sports, action, racing, and puzzle games, etc. The users install the game and play it for entertainment and to pass the time until repetitiveness and boredom prompts them to stop playing that game

Sheila A. Paul; Marianne Jensen; Chui Yin Wong; Chee-weng Khong

2008-01-01

156

Business Games Handbook.  

ERIC Educational Resources Information Center

The aim of this handbook is to provide training directors and all others interested in business games with an organized listing and description of business games and their sources; and to provide a source of sufficient data to help them select games for a particular purpose. The games are categorized as general purpose games, used in management

Graham, Robert G.; Gray, Clifford F.

157

Video games in education  

Microsoft Academic Search

ABSTRACT Computer and video games are a maturing medium,and industry and have caught the attention of scholars across a variety of disciplines. By and large, computer and video games have been ignored by educators. When educators have discussed games, they have focused on the social consequences,of game play, ignoring important educational potentials of gaming. This paper examines the history of

Kurt Squire

2003-01-01

158

Stochastic thermodynamics  

NASA Astrophysics Data System (ADS)

'Stochastic thermodynamics as a conceptual framework combines the stochastic energetics approach introduced a decade ago by Sekimoto [1] with the idea that entropy can consistently be assigned to a single fluctuating trajectory [2]'. This quote, taken from Udo Seifert's [3] 2008 review, nicely summarizes the basic ideas behind stochastic thermodynamics: for small systems, driven by external forces and in contact with a heat bath at a well-defined temperature, stochastic energetics [4] defines the exchanged work and heat along a single fluctuating trajectory and connects them to changes in the internal (system) energy by an energy balance analogous to the first law of thermodynamics. Additionally, providing a consistent definition of trajectory-wise entropy production gives rise to second-law-like relations and forms the basis for a 'stochastic thermodynamics' along individual fluctuating trajectories. In order to construct meaningful concepts of work, heat and entropy production for single trajectories, their definitions are based on the stochastic equations of motion modeling the physical system of interest. Because of this, they are valid even for systems that are prevented from equilibrating with the thermal environment by external driving forces (or other sources of non-equilibrium). In that way, the central notions of equilibrium thermodynamics, such as heat, work and entropy, are consistently extended to the non-equilibrium realm. In the (non-equilibrium) ensemble, the trajectory-wise quantities acquire distributions. General statements derived within stochastic thermodynamics typically refer to properties of these distributions, and are valid in the non-equilibrium regime even beyond the linear response. The extension of statistical mechanics and of exact thermodynamic statements to the non-equilibrium realm has been discussed from the early days of statistical mechanics more than 100 years ago. This debate culminated in the development of linear response theory for small deviations from equilibrium, in which a general framework is constructed from the analysis of non-equilibrium states close to equilibrium. In a next step, Prigogine and others developed linear irreversible thermodynamics, which establishes relations between transport coefficients and entropy production on a phenomenological level in terms of thermodynamic forces and fluxes. However, beyond the realm of linear response no general theoretical results were available for quite a long time. This situation has changed drastically over the last 20 years with the development of stochastic thermodynamics, revealing that the range of validity of thermodynamic statements can indeed be extended deep into the non-equilibrium regime. Early developments in that direction trace back to the observations of symmetry relations between the probabilities for entropy production and entropy annihilation in non-equilibrium steady states [5-8] (nowadays categorized in the class of so-called detailed fluctuation theorems), and the derivations of the Bochkov-Kuzovlev [9, 10] and Jarzynski relations [11] (which are now classified as so-called integral fluctuation theorems). Apart from its fundamental theoretical interest, the developments in stochastic thermodynamics have experienced an additional boost from the recent experimental progress in fabricating, manipulating, controlling and observing systems on the micro- and nano-scale. These advances are not only of formidable use for probing and monitoring biological processes on the cellular, sub-cellular and molecular level, but even include the realization of a microscopic thermodynamic heat engine [12] or the experimental verification of Landauer's principle in a colloidal system [13]. The scientific program Stochastic Thermodynamics held between 4 and 15 March 2013, and hosted by The Nordic Institute for Theoretical Physics (Nordita), was attended by more than 50 scientists from the Nordic countries and elsewhere, amongst them many leading experts in the field. During the program, the most recent developments, open quest

Eichhorn, Ralf; Aurell, Erik

2014-04-01

159

Usability and game design : improving the MITAR Game Editor  

E-print Network

Creating MIT Augmented Realty (MITAR) games can be a daunting task. MITAR game designers require a usable game editor to simplify this process. The MITAR Game Editor was the first editor to provide game designers with the ...

Falconi, Robert F

2010-01-01

160

Stochastic memristive devices for computing and neuromorphic applications.  

PubMed

Nanoscale resistive switching devices (memristive devices or memristors) have been studied for a number of applications ranging from non-volatile memory, logic to neuromorphic systems. However a major challenge is to address the potentially large variations in space and time in these nanoscale devices. Here we show that in metal-filament based memristive devices the switching can be fully stochastic. While individual switching events are random, the distribution and probability of switching can be well predicted and controlled. Rather than trying to force high switching probabilities using excess voltage or time, the inherent stochastic nature of resistive switching allows these binary devices to be used as building blocks for novel error-tolerant computing schemes such as stochastic computing and provides the needed "analog" feature for neuromorphic applications. To verify such potential, we demonstrated memristor-based stochastic bitstreams in both time and space domains, and show that an array of binary memristors can act as a multi-level "analog" device for neuromorphic applications. PMID:23698627

Gaba, Siddharth; Sheridan, Patrick; Zhou, Jiantao; Choi, Shinhyun; Lu, Wei

2013-07-01

161

Play the Electrocardiogram Game  

MedlinePLUS

... and Work Teachers' Questionnaire Electrocardiogram Play the ECG Game About the game ECG is used for diagnosing heart conditions by ... last will in Paris. Play the Blood Typing Game Try to save some patients and learn about ...

162

Play the MRI Game  

MedlinePLUS

... Teachers' Questionnaire MRI Play MRI the Magnetic Miracle Game About the game In the MRI imaging technique, strong magnets and ... last will in Paris. Play the Blood Typing Game Try to save some patients and learn about ...

163

Finite Horizon Minimax Optimal Control of Stochastic Partially Observed Time Varying Uncertain Systems  

Microsoft Academic Search

. We consider a linear-quadratic problem of minimax optimal control for stochastic uncertain control systems with output measurement.\\u000a The uncertainty in the system satisfies a stochastic integral quadratic constraint. To convert the constrained optimization\\u000a problem into an unconstrained one, a special S-procedure is applied. The resulting unconstrained game-type optimization problem is then converted into a risk-sensitive\\u000a stochastic control problem with

Valery A. Ugrinovskii; Ian R. Petersen

1999-01-01

164

Finite horizon minimax optimal control of stochastic partially observed time varying uncertain systems  

Microsoft Academic Search

We consider a linear-quadratic problem of minimax optimal control for stochastic uncertain control systems with output measurement. Uncertainty in a system satisfies a stochastic integral quadratic constraint. To convert the constrained optimization problem into an unconstrained one, a special S-procedure is applied. The resulting unconstrained game-type optimization problem is then converted into a risk sensitive stochastic control problem with an

Valery A. Ugrinovskii; Ian R. Petersen

1997-01-01

165

Stochastic effects in a seasonally forced epidemic model  

NASA Astrophysics Data System (ADS)

The interplay of seasonality, the systems nonlinearities and intrinsic stochasticity, is studied for a seasonally forced susceptible-exposed-infective-recovered stochastic model. The model is explored in the parameter region that corresponds to childhood infectious diseases such as measles. The power spectrum of the stochastic fluctuations around the attractors of the deterministic system that describes the model in the thermodynamic limit is computed analytically and validated by stochastic simulations for large system sizes. Size effects are studied through additional simulations. Other effects such as switching between coexisting attractors induced by stochasticity often mentioned in the literature as playing an important role in the dynamics of childhood infectious diseases are also investigated. The main conclusion is that stochastic amplification, rather than these effects, is the key ingredient to understand the observed incidence patterns.

Rozhnova, G.; Nunes, A.

2010-10-01

166

The Awesome Game Race  

NSDL National Science Digital Library

In this engineering activity, learners design their own board games. Learners brainstorm the various components of board games, conduct research using well-known games, and then design and prototype a game. The learners' games must meet a "client's" requirements -- the games must be designed for first and second graders, must work with two to four children, and must take less than 15 minutes to play.

Television, Twin C.

2013-01-01

167

Numerical study of stochastic dynamic micromagnetics  

NASA Astrophysics Data System (ADS)

Stochastic dynamics of the thermally assisted magnetization reversal in fine magnetic particles is studied in two approaches: solution of the Fokker-Planck equation and integration of stochastic differential equation. In the first approach, we have developed a new numerical method to solve the Fokker-Planck equation for thermal-magnetization reversal in a Stoner-Wohlfarth particle, using a quadratic isoparametric finite element (Galerkin) method. The surface of the unit sphere where the equation is defined is discretized into curved patches with quadratic interpolation functions. The resultant equation can be solved as a traditional eigenvalue problem. In addition, for the first time it is also solved as an initial value problem, which can result in non-exponential time decay. Furthermore, our method does not assume any symmetry in the equation. Problems with general symmetry properties such as cubic anisotropy, or no symmetry at all, or applied magnetic fields in arbitrary directions, can be solved. In addition, when an absorbing boundary is imposed on the surface, the solution corresponds to the first passage time problem. The numerical solution of the Fokker-Planck equation validates the stochastic differential equation approach for a Stoner-Wohlfarth particle. In the second approach, we have developed a stochastic dynamic micromagnetics code using the Langevin-Gilbert equation and the finite element method to study the thermal switching of fine particles. Dynamics of thermally assisted magnetization switching in an ellipsoidal particle with aspect ratio 4.62 is studied. The physical parameters of the particle have been chosen so that the magnetization switches incoherently. The first passage time for the magnetization to switch is calculated repeatedly to obtain statistics. The probability that the magnetization has not switched, Pn( t), can be described well by a delayed stretched exponential Pnt=exp -t-t0 tb , where t0, t and beta are parameters obtained by maximum likelihood estimation. We analyzed experimental data using the new model for Pn( t) and found very good agreement.

Zhang, Kezhao

168

Stochastic payoff evaluation increases the temperature of selection  

PubMed Central

We study stochastic evolutionary game dynamics in populations of finite size. Moreover, each individual has a randomly distributed number of interactions with other individuals. Therefore, the payoff of two individuals using the same strategy can be different. The resulting payoff stochasticity reduces the intensity of selection and therefore increases the temperature of selection. A simple mean-field approximation is derived that captures the average effect of the payoff stochasticity. Correction terms to the mean-field theory are computed and discussed. PMID:16979665

Traulsen, Arne; Nowak, Martin A.; Pacheco, Jorge M.

2007-01-01

169

Deterministic evolutionary game dynamics in finite populations.  

PubMed

Evolutionary game dynamics describes the spreading of successful strategies in a population of reproducing individuals. Typically, the microscopic definition of strategy spreading is stochastic such that the dynamics becomes deterministic only in infinitely large populations. Here, we present a microscopic birth-death process that has a fully deterministic strong selection limit in well-mixed populations of any size. Additionally, under weak selection, from this process the frequency-dependent Moran process is recovered. This makes it a natural extension of the usual evolutionary dynamics under weak selection. We find simple expressions for the fixation probabilities and average fixation times of the process in evolutionary games with two players and two strategies. For cyclic games with two players and three strategies, we show that the resulting deterministic dynamics crucially depends on the initial condition in a nontrivial way. PMID:19658731

Altrock, Philipp M; Traulsen, Arne

2009-07-01

170

Structure-preserving desynchronization of minority games  

NASA Astrophysics Data System (ADS)

Perfect synchronicity in N-player games is a useful theoretical dream, but communication delays are inevitable and may result in asynchronous interactions. Some systems such as financial markets are asynchronous by design, and yet most theoretical models assume perfectly synchronized actions. We propose a general method to transform standard models of adaptive agents into asynchronous systems while preserving their global structure under some conditions. Using the minority game as an example, we find that the phase and fluctuations structure of the standard game subsists even in maximally asynchronous deterministic case, but that it disappears if too much stochasticity is added to the temporal structure of interaction. Allowing for heterogeneous communication speeds and activity patterns gives rise to a new information ecology that we study in details. in here

Mosetti, G.; Challet, D.; Solomon, S.

2009-10-01

171

Partner switching stabilizes cooperation in coevolutionary prisoner's dilemma  

NASA Astrophysics Data System (ADS)

Previous studies suggest that cooperation prevails when individuals can switch their interaction partners quickly. However, it is still unclear how quickly individuals should switch adverse partners to maximize cooperation. To address this issue, we propose a simple model of coevolutionary prisoners dilemma in which individuals are allowed to either adjust their strategies or switch their defective partners. Interestingly, we find that, depending on the game parameter, there is an optimal tendency of switching adverse partnerships that maximizes the fraction of cooperators in the population. We confirm that the stabilization of cooperation by partner switching remains effective under some situations, where either normalized or accumulated payoff is used in strategy updating, and where either only cooperators or all individuals are privileged to sever disadvantageous partners. We also provide an extended pair approximation to study the coevolutionary dynamics. Our results may be helpful in understanding the role of partner switching in the stabilization of cooperation in the real world.

Fu, Feng; Wu, Te; Wang, Long

2009-03-01

172

High-Performance Multicast Routers using an Optical Switching Core  

Microsoft Academic Search

There is a growing need for routers to support multicast and broadcast applications such as war gaming, teleconferencing and web casting. Using the natural parallelism of optics in a switching core, high-performance routers that are efficient for heavily multicast\\/broadcast traffic can be implemented. A broadcast and select based optical switching core can handle efficiently multicast\\/broadcast traffic while featuring low latency

Mohammed N. Islam

173

Viscosity Solutions of Systems of PDEs with Interconnected Obstacles and Switching Problem  

SciTech Connect

This paper deals with existence and uniqueness of a solution in viscosity sense, for a system of m variational partial differential inequalities with inter-connected obstacles. A particular case is the Hamilton-Jacobi-Bellmann system of the Markovian stochastic optimal m-states switching problem. The switching cost functions depend on (t,x). The main tool is the notion of systems of reflected backward stochastic differential equations with oblique reflection.

Hamadene, S., E-mail: hamadene@univ-lemans.fr; Morlais, M. A., E-mail: Marie_Amelie.Morlais@univ-lemans.fr [Universite du Maine, LMM (France)

2013-04-15

174

GamingAnywhere--The First Open Source Cloud Gaming System  

E-print Network

1 GamingAnywhere--The First Open Source Cloud Gaming System CHUN-YING HUANG, National Taiwan Ocean source cloud gaming system, called GamingAnywhere. In addition to its openness, we design Gaming by the researchers, game developers, service providers, and end users for setting up cloud gaming testbeds, which, we

Chen, Sheng-Wei

175

Stochastic learning in oxide binary synaptic device for neuromorphic computing  

PubMed Central

Hardware implementation of neuromorphic computing is attractive as a computing paradigm beyond the conventional digital computing. In this work, we show that the SET (off-to-on) transition of metal oxide resistive switching memory becomes probabilistic under a weak programming condition. The switching variability of the binary synaptic device implements a stochastic learning rule. Such stochastic SET transition was statistically measured and modeled for a simulation of a winner-take-all network for competitive learning. The simulation illustrates that with such stochastic learning, the orientation classification function of input patterns can be effectively realized. The system performance metrics were compared between the conventional approach using the analog synapse and the approach in this work that employs the binary synapse utilizing the stochastic learning. The feasibility of using binary synapse in the neurormorphic computing may relax the constraints to engineer continuous multilevel intermediate states and widens the material choice for the synaptic device design. PMID:24198752

Yu, Shimeng; Gao, Bin; Fang, Zheng; Yu, Hongyu; Kang, Jinfeng; Wong, H.-S. Philip

2013-01-01

176

Steady-state simulation of metastable stochastic chemical systems  

NASA Astrophysics Data System (ADS)

We address the problem of steady-state simulation for metastable continuous-time Markov chains with application to stochastic chemical kinetics. Such systems are characterized by the existence of two or more pseudo-equilibrium states and very slow convergence towards global equilibrium. Approximation of the stationary distribution of these systems by direct application of the Stochastic Simulation Algorithm (SSA) is known to be very inefficient. In this paper, we propose a new method for steady-state simulation of metastable Markov chains that is centered around the concept of stochastic complementation. The use of this mathematical device along with SSA results in an algorithm with much better convergence properties, that facilitates the analysis of rarely switching stochastic biochemical systems. The efficiency of our method is demonstrated by its application to two genetic toggle switch models.

Milias-Argeitis, Andreas; Lygeros, John

2013-05-01

177

Motivational Correlations of Strategy Choices in the Prisoner's Dilemma Game  

NASA Technical Reports Server (NTRS)

The purpose of the present study was to investigate the relationship between the motivational dimensions assessed by the Motivation Analysis Test and prisoner's dilemma game behavior as measured both by the number of competitive strategy choices and the two-stage stochastic variables labelled trustworthiness, forgiveness, repentance, and trust by Rapoport.

Williams, Carl D.; Steele, Matthew W.; Tedeschi, James T.

1969-01-01

178

Managing the Weakest Link A Game-Theoretic Approach  

E-print Network

introduce a two-player stochastic game for modeling se- cure team selection to add resilience against member with a non-zero probability, unless she has a per- fectly secure strategy. In the special case- libria can be divided into two outcomes ­ either Alice is perfectly secure, or her protection is based

Bencsáth, Boldizsár

179

GAME THEORY Thomas S. Ferguson  

E-print Network

GAME THEORY Thomas S. Ferguson University of California at Los Angeles Contents Introduction. References. Part I. Impartial Combinatorial Games. 1.1 Take-Away Games. 1.2 The Game of Nim. 1.3 Graph Games. 1.4 Sums of Combinatorial Games. 1.5 Coin Turning Games. 1.6 Green Hackenbush. References. Part II

Ferguson, Thomas S.

180

Equivalence between quantum simultaneous games and quantum sequential games  

E-print Network

A framework for discussing relationships between different types of games is proposed. Within the framework, quantum simultaneous games, finite quantum simultaneous games, quantum sequential games, and finite quantum sequential games are defined. In addition, a notion of equivalence between two games is defined. Finally, the following three theorems are shown: (1) For any quantum simultaneous game G, there exists a quantum sequential game equivalent to G. (2) For any finite quantum simultaneous game G, there exists a finite quantum sequential game equivalent to G. (3) For any finite quantum sequential game G, there exists a finite quantum simultaneous game equivalent to G.

Naoki Kobayashi

2007-11-05

181

Game Theory Kenneth Prestwich  

E-print Network

Game Theory Kenneth Prestwich kprestwi@holycross.edu Department of Biology College of the Holy ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ......... . . . . . . ESS Game theory modeling: Hawks dashed line and Doves solid line. #12;Game Theory Kenneth Prestwich ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ............. ......... . . . . . . ESS Game theory modeling: Hawks dashed line and Doves solid line. #12;c 1999 by Kenneth Prestwich. All

Prestwich, Ken

182

Evolutionary game dynamics  

Microsoft Academic Search

Evolutionary game dynamics is the application of population dy- namical methods to game theory. It has been introduced by evolutionary biologists, anticipated in part by classical game theorists. In this survey, we present an overview of the many brands of deterministic dynamical systems motivated by evolutionary game theory, including ordinary dierential equa- tions (and, in particular, the replicator equation), dierential

Josef Hofbauer; Karl Sigmund

2003-01-01

183

Learning with Calculator Games  

ERIC Educational Resources Information Center

Educational games provide a fun introduction to new material and a review of mathematical algorithms. Specifically, games can be designed to assist students in developing mathematical skills as an incidental consequence of the game-playing process. The programs presented in this article are adaptations of board games or television shows that

Frahm, Bruce

2013-01-01

184

Play the Mosquito Game  

MedlinePLUS

... and Work Teachers' Questionnaire Malaria Play the Mosquito Game Play the Parasite Game About the games Malaria is one of the world's most common ... last will in Paris. Play the Blood Typing Game Try to save some patients and learn about ...

185

Gaming in the Classroom  

Microsoft Academic Search

Higher Ed technologists have been abuzz for some time now about the need to incorporate more games into teaching and learning. They cite the success of massively multiplayer online role-playing game (MMORPG) games like World of Warcraft for demonstrating the effectiveness of collaborative group work. But what kind of market exists out there for educational games? How do inexpensive iPad

Tim Wenson; Reid Kimball

2012-01-01

186

Game Birds of Colorado.  

ERIC Educational Resources Information Center

This booklet is intended to familiarize the reader with game birds typical of Colorado. Discussions in English and Spanish are presented. Discussions cover the management of game birds, individual game bird species, and endangered species of birds related to game birds. (RE)

Colorado State Div. of Wildlife, Denver.

187

The women's game conference  

Microsoft Academic Search

The Women's Game Conference focuses on women in the computer and video game industry. The conference will focus on a variety of women's topics in the computer and video game industry including examining career paths for women in the industry and issues related to working in the industry as women as well as how women are portrayed in games and

Newton Lee

2004-01-01

188

Games for Learning  

ERIC Educational Resources Information Center

Today there is a great deal of interest in and a lot of hype about using video games in schools. Video games are a new silver bullet. Games can create good learning because they teach in powerful ways. The theory behind game-based learning is not really new, but a traditional and well-tested approach to deep and effective learning, often

Gee, James Paul

2013-01-01

189

Video game violence  

Microsoft Academic Search

The popularity of video games, especially violent video games, has reached phenomenal proportions. The theoretical line of reasoning that hypothesizes a causal relationship between violent video-game play and aggression draws on the very large literature on media violence effects. Additionally, there are theoretical reasons to believe that video game effects should be stronger than movie or television violence effects. This

Karen E. Dill; Jody C. Dill

1998-01-01

190

Probabilistic Bidirectional Promoter Switches: Noncoding RNA Takes Control  

PubMed Central

The discovery of probabilistic promoter switches in genes that code for class I major histocompatibility complex receptors in mouse and human provides a useful paradigm to explain programmed cell fate decisions. These switches have preset probabilities of transcribing in either the sense or antisense direction, and the characteristics of individual switches are programmed by the relative affinity of competing transcription factorbinding sites. The noncoding RNAs produced from these switches can either activate or suppress gene transcription, based on their location relative to the promoter responsible for gene expression in mature cells. The switches are active in a developmental phase that precedes gene expression by mature cells, thus temporally separating the stochastic events that determine gene activation from the protein expression phase. This allows the probabilistic generation of variegated gene expression in the absence of selection and ensures that mature cells have stable expression of the genes. Programmed probabilistic switches may control cell fate decisions in many developmental systems, and therefore, it is important to investigate noncoding RNAs expressed by progenitor cells to determine if they are expressed in a stochastic manner at the single cell level. This review provides a summary of current knowledge regarding murine and human switches, followed by speculation on the possible involvement of probabilistic switches in other systems of programmed differentiation. PMID:25181276

Anderson, Stephen K

2014-01-01

191

Gaming the Quantum  

E-print Network

In the time since a merger of quantum mechanics and game theory was proposed formally in 1999, the two distinct perspectives apparent in this merger of applying quantum mechanics to game theory, referred to henceforth as the theory of "quantized games", and of applying game theory to quantum mechanics, referred to henceforth as "gaming the quantum", have become synonymous under the single ill-defined term "quantum game". Here, these two perspectives are delineated and a game-theoretically proper description of what makes a multi-player, non-cooperative game quantum mechanical, is given. Within the context of this description, finding a Nash equilibrium in a strictly competitive quantum game is shown to be equivalent to finding a solution to a simultaneous best approximation problem in the state space of quantum objects, thus setting up a framework for a game theory inspired study of "equilibrium" behavior of quantum physical systems such as those utilized in quantum information processing and computation.

Faisal Shah Khan; Simon J. D. Phoenix

2012-02-06

192

The Uses of Teaching Games in Game Theory Classes and Some Experimental Games.  

ERIC Educational Resources Information Center

Discusses the use of lightly controlled games, primarily in classes in game theory. Considers the value of such games from the viewpoint of both teaching and experimentation and discusses context; control; pros and cons of games in teaching; experimental games; and games in class, including cooperative game theory. (Author/LRW)

Shubik, Martin

2002-01-01

193

Aug 7, 2009 ISITR662 1 The Tetris Switch  

E-print Network

Aug 7, 2009 ISITR662 1 The Tetris Switch Stephen Suryaputra and Joseph D. Touch USC/ISI Marina del Rey, CA, USA surya@isi.edu and touch@isi.edu Joseph A. Bannister Aerospace Corp. El Segundo, CA, USA as part of a new contention resolution mechanism inspired by the Tetris video game. This paper presents

Touch, Joe

194

Stochastic Cooling  

SciTech Connect

Stochastic Cooling was invented by Simon van der Meer and was demonstrated at the CERN ISR and ICE (Initial Cooling Experiment). Operational systems were developed at Fermilab and CERN. A complete theory of cooling of unbunched beams was developed, and was applied at CERN and Fermilab. Several new and existing rings employ coasting beam cooling. Bunched beam cooling was demonstrated in ICE and has been observed in several rings designed for coasting beam cooling. High energy bunched beams have proven more difficult. Signal suppression was achieved in the Tevatron, though operational cooling was not pursued at Fermilab. Longitudinal cooling was achieved in the RHIC collider. More recently a vertical cooling system in RHIC cooled both transverse dimensions via betatron coupling.

Blaskiewicz, M.

2011-01-01

195

Real-Time Strategy Game Training: Emergence of a Cognitive Flexibility Trait  

PubMed Central

Training in action video games can increase the speed of perceptual processing. However, it is unknown whether video-game training can lead to broad-based changes in higher-level competencies such as cognitive flexibility, a core and neurally distributed component of cognition. To determine whether video gaming can enhance cognitive flexibility and, if so, why these changes occur, the current study compares two versions of a real-time strategy (RTS) game. Using a meta-analytic Bayes factor approach, we found that the gaming condition that emphasized maintenance and rapid switching between multiple information and action sources led to a large increase in cognitive flexibility as measured by a wide array of non-video gaming tasks. Theoretically, the results suggest that the distributed brain networks supporting cognitive flexibility can be tuned by engrossing video game experience that stresses maintenance and rapid manipulation of multiple information sources. Practically, these results suggest avenues for increasing cognitive function. PMID:23950921

Glass, Brian D.; Maddox, W. Todd; Love, Bradley C.

2013-01-01

196

Performance Modeling Of Interactive Gaming  

E-print Network

Performance Modeling Of Interactive Gaming A.F. Wattimena May 2006 #12;Performance Modeling of Interactive Gaming ii #12;Performance Modeling of Interactive Gaming iii Performance Modeling of Interactive Gaming Alexander Franciscus Wattimena

Bhulai, Sandjai

197

To game or not to game: teaching transportation planning  

E-print Network

To game or not to game: teaching transportation planning with board games Arthur Huang and David Levinson Department of Civil Engineering University of Minnesota 1/23/2012 #12;#12;Why board games? Board games Transport networks Nexus between transport & land use Game economy Competition vs monopoly CE 5212

Levinson, David M.

198

MDA: A Formal Approach to Game Design and Game Research  

Microsoft Academic Search

In this paper we present the MDA framework (standing for Mechanics, Dynamics, and Aesthetics), developed and taught as part of the Game Design and Tuning Workshop at the Game Developers Conference, San Jose 2001-2004. MDA is a formal approach to understanding games - one which attempts to bridge the gap between game design and development, game criticism, and technical game

Robin Hunicke; Marc LeBlanc; Robert Zubek

199

Why Machine Learning and Games? Machine Learning in Video Games  

E-print Network

#12;Why Machine Learning and Games? Machine Learning in Video Games DrivatarsTM Reinforcement entertainment valueWhat is the best AI? #12;Why Machine Learning and Games? Machine Learning in Video Games;#12;Why Machine Learning and Games? Machine Learning in Video Games DrivatarsTM Reinforcement Learning

Hunt, Galen

200

Latching relay switch assembly  

DOEpatents

A latching relay switch assembly which includes a coil section and a switch or contact section. The coil section includes at least one permanent magnet and at least one electromagnet. The respective sections are, generally, arranged in separate locations or cavities in the assembly. The switch is latched by a permanent magnet assembly and selectively switched by an overriding electromagnetic assembly.

Duimstra, Frederick A. (Anaheim Hills, CA)

1991-01-01

201

A Finite Horizon Optimal Multiple Switching Problem Boualem Djehiche,  

E-print Network

, when the state of the system, including the switching costs, is a general adapted stochastic process. The problem is formulated as an extended impulse control problem and solved using probabilistic tools to questions related to the structural profitability of an investment project or an industry whose production

Di Girolami, Cristina

202

Economic and Game Theory  

NSDL National Science Digital Library

David Levine, Professor of Economics at the University of California, Los Angeles has created a web site devoted to game theory. This site contains many useful resources on game theory including an introductory essay and a suggested reading list. There is also a collection of working papers by David Levine and coauthors on economic theory, mathematical economics and game theory. A highlight of the site is the availability of a 348 page book by Drew Fudenberg and David K. Levine, Theory of Learning in Games, in Acrobat format. The site also contains an on-line zero-sum game solver, an on-line forecaster and cooperative learning games (Java based).

Levine, David K.

1997-01-01

203

Quantum Matching Pennies Game  

E-print Network

A quantum version of the Matching Pennies (MP) game is proposed that is played using an Einstein-Podolsky-Rosen-Bohm (EPR-Bohm) setting. We construct the quantum game without using the state vectors, while considering only the quantum mechanical joint probabilities relevant to the EPR-Bohm setting. We embed the classical game within the quantum game such that the classical MP game results when the quantum mechanical joint probabilities become factorizable. We report new Nash equilibria in the quantum MP game that emerge when the quantum mechanical joint probabilities maximally violate the Clauser-Horne-Shimony-Holt form of Bell's inequality.

Azhar Iqbal; Derek Abbott

2008-07-23

204

Cooperative quantum Parrondo's games  

E-print Network

Coordination and cooperation are among the most important issues of game theory. Recently, the attention turned to game theory on graphs and social networks. Encouraged by interesting results obtained in quantum evolutionary game analysis, we study cooperative Parrondo's games in a quantum setup. The game is modeled using multidimensional quantum random walks with biased coins. We use the GHZ and W entangled states as the initial state of the coins. Our analysis shows than an apparent paradox in cooperative quantum games and some interesting phenomena can be observed.

?ukasz Pawela; Jan S?adkowski

2012-07-30

205

Can Nintendo get its crown back? : examining the dynamics of the U.S. video game console market  

E-print Network

Several generations of video game consoles have competed in the market since 1972. Overall, the entire market shares many similar characteristics, such as network effects and switching cost, which are found in other ...

Chow, Samuel W

2007-01-01

206

Radiation hard vacuum switch  

DOEpatents

A vacuum switch with an isolated trigger probe which is not directly connected to the switching electrodes. The vacuum switch within the plasmatron is triggered by plasma expansion initiated by the trigger probe which travels through an opening to reach the vacuum switch elements. The plasma arc created is directed by the opening to the space between the anode and cathode of the vacuum switch to cause conduction.

Boettcher, Gordon E. (Albuquerque, NM)

1990-01-01

207

The Easiest Lights Out Games  

ERIC Educational Resources Information Center

The game "Lights Out" and its mathematical predecessor, the sigma-plus game, has inspired an extensive mathematical literature. In this paper, the original game and a borderless version played on a torus are considered. We define an easy game to be one in which pushing the buttons that are originally lit solves the game. Easy games are classified

Torrence, Bruce

2011-01-01

208

Personality, motivation and video games  

Microsoft Academic Search

This study explored relationships between personality, video game preference and gaming experiences. Two hundred and thirty-five participants completed an online survey in which they recalled a recent gaming experience, and provided measures of personality and their gaming experience via the Player Experience of Need Satisfaction (PENS) measure. Relationships between game genre, personality and gaming experience were found. Results are interpreted

Daniel Johnson; John A. Gardner

2010-01-01

209

Game AI Research Michael Buro  

E-print Network

Endgame/pattern databases Evaluation function learning Multiplayer games ... Video Games RTS (Star Adversarial Planning Search Abstractions Search in Imperfect Information Games Search in Complex Video Games reach or surpass the best human players in complex real-time video games? Current video game AI systems

Buro, Michael

210

Information Security Analysis Using Game Theory and Simulation  

SciTech Connect

Information security analysis can be performed using game theory implemented in dynamic simulations of Agent Based Models (ABMs). Such simulations can be verified with the results from game theory analysis and further used to explore larger scale, real world scenarios involving multiple attackers, defenders, and information assets. Our approach addresses imperfect information and scalability that allows us to also address previous limitations of current stochastic game models. Such models only consider perfect information assuming that the defender is always able to detect attacks; assuming that the state transition probabilities are fixed before the game assuming that the players actions are always synchronous; and that most models are not scalable with the size and complexity of systems under consideration. Our use of ABMs yields results of selected experiments that demonstrate our proposed approach and provides a quantitative measure for realistic information systems and their related security scenarios.

Schlicher, Bob G [ORNL] [ORNL; Abercrombie, Robert K [ORNL] [ORNL

2012-01-01

211

Modeling Subtilin Production in Bacillus subtilis Using Stochastic Hybrid Systems  

E-print Network

. The genetic network regulating the biosynthesis of subtilin in Bacillus subtilis is modeled as a stochastic regulating proteins, whose productions are controlled by switches in the genetic network that are in turn the genetics of subtilin is known and its biosynthetic pathways are well characterized [2, 7, 11]. We briefly

Sastry, S. Shankar

212

Interactive Health Games  

MedlinePLUS

... and Unplanned Pregnancy) Teens' Page Nobel Prize in Physiology or Medicine (Nobel Foundation) Tuberculosis Play the Tuberculosis Game (Nobel Foundation) V Vision Impairment and Blindness Braille Bug: Games (American Foundation ...

213

Braille Bug: Games  

MedlinePLUS

... screen reader or refreshable braille display, try these games! New: a special Jumble for kids who have ... friends. Would you like to know when new games and activities are added to the Braille Bug ...

214

Play the Tuberculosis Game  

MedlinePLUS

... Questionnaire Tuberculosis Play Tuberculosis Experiments & Discoveries About the game Discover and experience some of the classic methods ... last will in Paris. Play the Blood Typing Game Try to save some patients and learn about ...

215

Quantum signaling game  

NASA Astrophysics Data System (ADS)

We present a quantum approach to a signaling game; a special kind of extensive game of incomplete information. Our model is based on quantum schemes for games in strategic form where players perform unitary operators on their own qubits of some fixed initial state and the payoff function is given by a measurement on the resulting final state. We show that the quantum game induced by our scheme coincides with a signaling game as a special case and outputs nonclassical results in general. As an example, we consider a quantum extension of the signaling game in which the chance move is a three-parameter unitary operator whereas the players' actions are equivalent to classical ones. In this case, we study the game in terms of Nash equilibria and refine the pure Nash equilibria adapting to the quantum game the notion of a weak perfect Bayesian equilibrium.

Frackiewicz, Piotr

2014-08-01

216

Games and Simulations.  

ERIC Educational Resources Information Center

Describes secondary school students making and playing games related to specific themes in their course work. Transcripts of student discussions are used to illustrate the language and social skills to which the gaming contributed. (AA)

Wardlaw, Heather

1978-01-01

217

Black Hole Explorer Game  

NSDL National Science Digital Library

This board game challenges players (ages 10+) to build a spaceship and fly to a black hole. The game provides opportunities for understanding phenomena based on current black hole research. During the game, players will experience the dangers and excitement of a real space mission, and learn about the nature of black holes by launching scientific probes. The game can be played competitively or as a team (instructions are also provided for playing in large groups. Black Hole Explorer consists of: Game Board, Game Rules, Spacecraft Data sheets, Science Briefing Room document, Event cards (28), Probe result cards (12), Energy tokens (140). Game components are available as PDF downloads; dice and game pieces must be provided by the user. NOTE: tokens and cards need to be cut to size from letter-size cardstock.

218

Games, puzzles, and computation  

E-print Network

There is a fundamental connection between the notions of game and of computation. At its most basic level, this is implied by any game complexity result, but the connection is deeper than this. One example is the concept ...

Hearn, Robert A. (Robert Aubrey), 1965-

2006-01-01

219

RF MEMS switches and switch circuits  

Microsoft Academic Search

MEMS switches are devices that use mechanical movement to achieve a short circuit or an open circuit in the RF transmission line. RF MEMS switches are the specific micromechanical switches that are designed to operate at RF-to-millimeter-wave frequencies (0.1 to 100 GHz). The forces required for the mechanical movement can be obtained using electrostatic, magnetostatic, piezoelectric, or thermal designs. To

G. M. Rebeiz; J. B. Muldavin

2001-01-01

220

Nanoelectromechanical contact switches.  

PubMed

Nanoelectromechanical (NEM) switches are similar to conventional semiconductor switches in that they can be used as relays, transistors, logic devices and sensors. However, the operating principles of NEM switches and semiconductor switches are fundamentally different. These differences give NEM switches an advantage over semiconductor switches in some applications--for example, NEM switches perform much better in extreme environments--but semiconductor switches benefit from a much superior manufacturing infrastructure. Here we review the potential of NEM-switch technologies to complement or selectively replace conventional complementary metal-oxide semiconductor technology, and identify the challenges involved in the large-scale manufacture of a representative set of NEM-based devices. PMID:22543427

Loh, Owen Y; Espinosa, Horacio D

2012-05-01

221

The Game of Fif  

NSDL National Science Digital Library

This interactive Java game, played against the computer, develops strategic thinking while providing addition practice with with single-digit whole numbers. Players take turns selecting numbers from 1 through 9, trying to be the first to have exactly three numbers that sum to 15. The author provides some background and theory on the game as well as links to other interactive strategy games. An article with more information and adaptations, What is the Name of This Game?, is cataloged separately.

2012-01-01

222

Evaluating Exertion Games  

Microsoft Academic Search

\\u000a Games that demand exertion of the players through bodily movements are experiencing increasing commercial success and have\\u000a been attributed with many physical, mental and social benefits, thus changing the way we play computer games. However, there\\u000a is a lack of understanding of how to evaluate such exertion games, mainly because the games facilitated bodily movements\\u000a are believed to be responsible

Florian Floyd Mueller; Nadia Bianchi-Berthouze

223

Video Game Designer  

NSDL National Science Digital Library

Do you like to play video games? Did you know that in your future career you could design video games for youth just like you? Read the information on this site to learn what a video designer does and what classes you need to take in order to become one. You can also read about some famous current video game designers and about the games they have designed.

2005-12-05

224

Quantum game theory  

NASA Astrophysics Data System (ADS)

Non-cooperative quantum games have received much attention recently. This thesis defines and divides current works into two major categories of gaming techniques with close attention paid to Nash equilibria, form and possibilities for the payoff functions, and the benefits of using a quantum strategy. In addition to comparing and contrasting these techniques, new applications and calculations are discussed. Finally, the techniques are expanded into 3 x 3 games which allows the study of non-transitive strategies in quantum games.

Stohler, Michael Lehman

2002-01-01

225

Online Gaming Perpetrators Model  

Microsoft Academic Search

Online gaming carries high economic value in e-business. Online gaming players have reasonable expectation in online gaming\\u000a property and associate them with values in real world markets. This phenomenon emerges as a new research issue related to\\u000a the development of e-society. This study briefly digests the characteristics of online gaming perpetrators and proposes the\\u000a perpetrators model in order to explain

Yungchang Ku; Saurabh Gupta

2008-01-01

226

The Ultimate Flag Games.  

ERIC Educational Resources Information Center

This paper describes six Ultimate Flag Games which offer a change from traditional games and sports that are usually geared toward athletically inclined students. These new games, aimed at middle school through college students, allow for success from the least-skilled through the most athletically talented students. Players are ability grouped

Angel, Kenny; Sutton, Nancy

227

Indian & Metis Trivia Game.  

ERIC Educational Resources Information Center

This booklet consists of 220 questions about Native North Americans and Metis people that can be used as learning activities for elementary and secondary school students. Suggestions for using the questions include playing games in pairs or teams, locating resources to find answers to questions, playing trivia games and board games, and using

Manitoba Dept. of Education and Training, Winnipeg.

228

Correlation Guessing Game  

NSDL National Science Digital Library

In this game activity, students match correlation values with plots generated by the applet. Competition in this game setting encourages students to become more involved in the classroom and attainment of learning objectives. This game is best if used in a lab setting, although it may be modified to fit other classroom situations.

Arroway, Pam; Gratton, Jennifer; Stanislav, Steve; Woodard, Roger

2009-02-20

229

Getting into the Game  

ERIC Educational Resources Information Center

Statistics reveal that students spend more time on electronic games than on any other recreational activity and 32% admit to playing them during class. The gaming revolution contains lessons for teachers, and understanding the pedagogical potential of computer and video games and developing curriculum that supports the educational use of

Jenkins, Henry

2005-01-01

230

Kids Only Game Time!  

NSDL National Science Digital Library

These kids games from the NASA Earth Science Enterprise include: Droplet and the Water Cycle, where a droplet must be navigated through the hydrological cycle; What on Earth?, a game of earth trivia; word search puzzles, with hidden earth science words; Drag and Drop puzzles, to test one's ability to interpret satellite and composite images; a Pangaea map game; and a tectonics quiz.

231

Online Strategy Games.  

ERIC Educational Resources Information Center

A strategy game is an online interactive game that requires thinking in order to be played at its best and whose winning strategy is not obvious. Provides information on strategy games that are written in Java or JavaScript and freely available on the web. (KHR)

Dye, Bryan

2002-01-01

232

Factor Trail Game  

NSDL National Science Digital Library

In this math game, learners identify the factors of a number to earn points. Although practicing a mundane skill, learners enjoy the work because of the game scenario. Built into this game is cooperative learning--learners check one another's work before points are awarded. This lesson guide includes questions for learners, assessment options, extensions, and reflection questions.

2008-01-01

233

Cores of convex games  

Microsoft Academic Search

The core of ann-person game is the set of feasible outcomes that cannot be improved upon by any coalition of players. A convex game is defined as one that is based on a convex set function. In this paper it is shown that the core of a convex game is not empty and that it has an especially regular structure.

Lloyd S. Shapley

1971-01-01

234

First Video Game  

SciTech Connect

Fifty years ago, before either arcades or home video games, visitors waited in line at Brookhaven National Laboratory to play Tennis for Two, an electronic tennis game that is unquestionably a forerunner of the modern video game. Two people played the ele

Peter Takacs

2008-10-21

235

Evolutionary Game Theory  

Microsoft Academic Search

This text introduces current evolutionary game theory--where ideas from evolutionary biology and rationalistic economics meet--emphasizing the links between static and dynamic approaches and noncooperative game theory. The author provides an overview of the developments that have taken place in this branch of game theory, discusses the mathematical tools needed to understand the area, describes both the motivation and intuition for

Jorgen W. Weibull

1999-01-01

236

Brain Games for Babies.  

ERIC Educational Resources Information Center

Presents games for caregivers to use with infants to enhance brain development. Includes games that develop trust and security, language skills, and fine motor skills, as well as games that are fun or stimulate vision. Includes videotape references for parents and caregivers. (KB)

Silberg, Jackie

2001-01-01

237

Self-Assembly Game  

NSDL National Science Digital Library

This is a quick game about self-assembly. Like the molecules of DNA, learners will self-assemble into a pattern by following a simple set of rules. The icebreaker game is part of a larger self-assembly lesson plan, and additional self-assembly game ideas and a video can be found in the related links.

2012-06-26

238

Playing the Cell Game.  

ERIC Educational Resources Information Center

Discusses the use of games to facilitate learning scientific concepts and principles. Describes the Cell Game, which simulates plant and animal cells; the Energy Quest, which requires players to buy property that generates largest amounts of electricity; the Blood Flow Game, which illustrates circulation of blood through the human body. (CS)

Madrazo, Gerry M., Jr.; Wood, Carol A.

1980-01-01

239

The Acid Rain Game.  

ERIC Educational Resources Information Center

Provides rationale for and description of an acid rain game (designed for two players), a problem-solving model for elementary students. Although complete instructions are provided, including a copy of the game board, the game is also available for Apple II microcomputers. Information for the computer program is available from the author.

Rakow, Steven J.; Glenn, Allen

1982-01-01

240

Being a Game Changer  

ERIC Educational Resources Information Center

One of the key features that draws many people to play video games is the fact that they are interactive. Video games allow the user to be actively engaged and in control of the action (Prensky, 2006). Seventh grade students at Canonsburg Middle School are actively engaging in the creation of video games. The students are engaged at a much deeper

Herrig, Brian; Taranto, Greg

2012-01-01

241

Gollywood Squares Game  

NSDL National Science Digital Library

In this Cyberchase activity, roll the die and count off spaces on the game board to earn money and collect CyberSquad autographs. To win the game, be the first to buy four different autographs. This game enables learners to practice adding and subtracting and counting money.

WNET

2011-01-01

242

An Extended Duopoly Game.  

ERIC Educational Resources Information Center

Illustrates how principles and intermediate microeconomic students can gain an understanding for strategic price setting by playing a relatively large oligopoly game. Explains that the game extends to a continuous price space and outlines appropriate applications. Offers the Mathematica code to instructors so that the assumptions of the game can

Eckalbar, John C.

2002-01-01

243

War and Video Games  

Microsoft Academic Search

War has been a subject of many different mediums. Through the portrayal of war, great movies have given insights on human conditions in wartime. War has also been the subject of several video games that are incredibly popular in mass culture. The difference between war movies and war games are that war games are interactive, requiring the players to act

Nicholas A. Perry

2009-01-01

244

Violence in video games  

Microsoft Academic Search

Reviews the longstanding and controversial topic of the effects of video game violence on children. Examines existing research and draws on personal experience and an interview with Doug Lowenstein, President of the Entertainment Software Association, for a view from the video game industry. Reports limitations on the significance of the research: some is short-term, on one type of game only,

Ellen Wolock; Craig A. Anderson

2004-01-01

245

Designing universally accessible games  

Microsoft Academic Search

Today, computer games are one of the major sources of entertainment. Computer games are usually far more demanding than typical interactive applications in terms of motor and sensory skills needed for interaction control, due to special-purpose input devices, complicated interaction techniques, and the primary emphasis on visual control and attention. This renders computer games inaccessible to a large percentage of

Dimitris Grammenos; Anthony Savidis; Constantine Stephanidis

2009-01-01

246

Dynamic phase transition in the prisoner's dilemma on a lattice with stochastic modifications  

NASA Astrophysics Data System (ADS)

We present a detailed study of the prisoner's dilemma game with stochastic modifications on a two-dimensional lattice, in the presence of evolutionary dynamics. By very nature of the rules, the cooperators have incentives to cheat and fear being cheated. They may cheat even when this is not dictated by the evolutionary dynamics. We consider two variants here. In each case, the agents mimic the action (cooperation or defection) in the previous time step of the most successful agent in the neighborhood. But over and above this, the fraction p of cooperators spontaneously change their strategy to pure defector at every time step in the first variant. In the second variant, there are no pure cooperators. All cooperators keep defecting with probability p at every time step. In both cases, the system switches from a coexistence state to an all-defector state for higher values of p. We show that the transition between these states unambiguously belongs to the directed percolation universality class in 2 + 1 dimensions. We also study the local persistence. The persistence exponents obtained are higher than the ones obtained in previous studies, underlining their dependence on details of the dynamics.

Saif, M. Ali; Gade, Prashant M.

2010-03-01

247

GAME THEORY Thomas S. Ferguson  

E-print Network

GAME THEORY Thomas S. Ferguson Part I. Impartial Combinatorial Games 1. Take-Away Games. 1.1 A Simple Take-Away Game. 1.2 What is a Combinatorial Game? 1.3 P-positions, N-positions. 1.4 Subtraction Games. 1.5 Exercises. 2. The Game of Nim. 2.1 Preliminary Analysis. 2.2 Nim-Sum. 2.3 Nim With a Larger

Ferguson, Thomas S.

248

Stochastic cooling in RHIC  

SciTech Connect

After the success of longitudinal stochastic cooling of bunched heavy ion beam in RHIC, transverse stochastic cooling in the vertical plane of Yellow ring was installed and is being commissioned with proton beam. This report presents the status of the effort and gives an estimate, based on simulation, of the RHIC luminosity with stochastic cooling in all planes.

Brennan,J.M.; Blaskiewicz, M. M.; Severino, F.

2009-05-04

249

Index to Games Materials  

NSDL National Science Digital Library

This webpage offers a variety of games which develop strategic thinking, analytical skills, and basic number skills. Three pdfs provide instructions and materials for sets of games played on reusable boards, on consumable sheets, and with number cards. The only other materials required are counters/chips, dice, and pens/pencils. The site also includes instructions for games that require only counters or paper and pencil. A short article describes the rationale for using such games in the classroom and offers suggestions for organizing and managing games and for maximizing their benefits.

Tapson, Frank

2011-01-01

250

Game Theory .net  

NSDL National Science Digital Library

Game Theory .net focuses on making the lessons of game theory relevant to the educator, student, business professional, or layperson. The site provides resource materials demonstrating the application of game theory to computer science, economics, business, political science, and other disciplines. It features textbooks reviews, lecture notes, and quizzes, as well as Java applets and online games to demonstrate concepts in a fun, interactive way. There are also links concerning game-theory themes in movies, books, and the popular press. Assessment materials are provided to aid educators in preparing classes and to offer students additional practice.

Mike Shor

251

World Wildlife Fund: Games  

NSDL National Science Digital Library

Games are a great medium for introducing kids to complex topics like biodiversity. From the World Wildlife Fund, this website offers an inventive and fun collection of biodiversity games. The interactive games are designed for middle-school students and include a Virtual Safari, a Mapping Biodiversity game, a genetic diversity game, and more. The site also features a trailer for Biodiversity 911, a movie produced by Aardman, the clever creators of Wallace and Gromit. The website's Biodiversity 911 section also links to interactive activities that address fish sustainability, soil composition, toxic elements, and the ecology of a Sumatran rain forest.

252

Stochastic resonance in attention control  

NASA Astrophysics Data System (ADS)

We investigated the beneficial role of noise in a human higher brain function, namely visual attention control. We asked subjects to detect a weak gray-level target inside a marker box either in the left or the right visual field. Signal detection performance was optimized by presenting a low level of randomly flickering gray-level noise between and outside the two possible target locations. Further, we found that an increase in eye movement (saccade) rate helped to compensate for the usual deterioration in detection performance at higher noise levels. To our knowledge, this is the first experimental evidence that noise can optimize a higher brain function which involves distinct brain regions above the level of primary sensory systems -- switching behavior between multi-stable attention states -- via the mechanism of stochastic resonance.

Kitajo, K.; Yamanaka, K.; Ward, L. M.; Yamamoto, Y.

2006-12-01

253

The game chromatic index and game coloring index of graphs  

E-print Network

The game chromatic index and game coloring index of graphs Leizhen Cai Department of Computer@math.nsysu.edu.tw May, 1998. y Abstract This paper discusses the game chromatic index and game coloring index of graphs. We prove that if a graph G is k-degenerate, then its game coloring index is at most #1;+ 3k 1

Zhu, Xuding

254

Distributed video game streaming system for pervasive gaming  

E-print Network

Distributed video game streaming system for pervasive gaming A. Jurgelionis1 , F. Bellotti2 , A. De video game streaming system. Newly developed streaming protocols and system architectures enable that the Games@Large system is capable of running video games of different genres, also including First Person

Eisert, Peter

255

A Complete Axiomatization of Differential Game Logic for Hybrid Games  

E-print Network

Euclidean space. We consider hybrid games [TPS98, TLS00, BBC10, VPVD11], i.e. games of two playersA Complete Axiomatization of Differential Game Logic for Hybrid Games Andr´e Platzer January 2013 logic; hybrid dynamical systems; hybrid games; axiomatization #12;Abstract We introduce differential

256

FACEBOOK GAMES: THE POINT WHERE TRIBES AND CASUAL GAMES MEET  

E-print Network

FACEBOOK GAMES: THE POINT WHERE TRIBES AND CASUAL GAMES MEET Di Loreto Ines Università degli Studi gouaich@lirmm.fr Pierre-Alain Laur Feerik pal@feerik.com ABSTRACT The focus on social games in recent Games) such as World of Warcraft (WoW). However, the rise of social games in social networks has also

Paris-Sud XI, Université de

257

GamingAnywhere: An Open-Source Cloud Gaming Testbed  

E-print Network

GamingAnywhere: An Open-Source Cloud Gaming Testbed Chun-Ying Huang1 , De-Yu Chen2 , Cheng-Hsin Hsu Tsing Hua University ABSTRACT While cloud gaming opens new business opportunity, it also poses. Although researchers have various ideas to improve cloud gaming sys- tems, existing cloud gaming systems

Chen, Sheng-Wei

258

Automatic thermal switches  

NASA Technical Reports Server (NTRS)

Two automatic switches control heat flow from one thermally conductive plate to another. One switch permits heat flow to outside; other limits heat flow. In one switch, heat on conductive plate activates piston that forces saddle against plate. Heat carriers then conduct heat to second plate that radiates it away. After temperature is first plate drops, piston contracts and spring breaks thermal contact with plate. In second switch, action is reversed.

Cunningham, J. W.; Wing, L. D.

1980-01-01

259

Remote switch actuator  

DOEpatents

The invention provides a device and method for actuating electrical switches remotely. The device is removably attached to the switch and is actuated through the transfer of a user's force. The user is able to remain physically removed from the switch site obviating need for protective equipment. The device and method allow rapid, safe actuation of high-voltage or high-current carrying electrical switches or circuit breakers.

Haas, Edwin Gerard; Beauman, Ronald; Palo, Jr., Stefan

2013-01-29

260

Extended Parrondo's game and Brownian ratchets: strong and weak Parrondo effect.  

PubMed

Inspired by the flashing ratchet, Parrondo's game presents an apparently paradoxical situation. Parrondo's game consists of two individual games, game A and game B. Game A is a slightly losing coin-tossing game. Game B has two coins, with an integer parameter M. If the current cumulative capital (in discrete unit) is a multiple of M, an unfavorable coin p(b) is used, otherwise a favorable p(g) coin is used. Paradoxically, a combination of game A and game B could lead to a winning game, which is the Parrondo effect. We extend the original Parrondo's game to include the possibility of M being either M(1) or M(2). Also, we distinguish between strong Parrondo effect, i.e., two losing games combine to form a winning game, and weak Parrondo effect, i.e., two games combine to form a better-performing game. We find that when M(2) is not a multiple of M(1), the combination of B(M(1)) and B(M(2)) has strong and weak Parrondo effect for some subsets in the parameter space (p(b),p(g)), while there is neither strong nor weak effect when M(2) is a multiple of M(1). Furthermore, when M(2) is not a multiple of M(1), a stochastic mixture of game A may cancel the strong and weak Parrondo effect. Following a discretization scheme in the literature of Parrondo's game, we establish a link between our extended Parrondo's game with the analysis of discrete Brownian ratchet. We find a relation between the Parrondo effect of our extended model to the macroscopic bias in a discrete ratchet. The slope of a ratchet potential can be mapped to the fair game condition in the extended model, so that under some conditions, the macroscopic bias in a discrete ratchet can provide a good predictor for the game performance of the extended model. On the other hand, our extended model suggests a design of a ratchet in which the potential is a mixture of two periodic potentials. PMID:25353457

Wu, Degang; Szeto, Kwok Yip

2014-02-01

261

Triggered plasma opening switch  

DOEpatents

A triggerable opening switch for a very high voltage and current pulse includes a transmission line extending from a source to a load and having an intermediate switch section including a plasma for conducting electrons between transmission line conductors and a magnetic field for breaking the plasma conduction path and magnetically insulating the electrons when it is desired to open the switch.

Mendel, Clifford W. (Albuquerque, NM)

1988-01-01

262

ENERGY LOSSES IN SWITCHES  

Microsoft Academic Search

The authors experiments show energy losses between 2 and 10 times that of the resistive time predictions. The experiments used hydrogen, helium, air, nitrogen, SF polyethylene, and water for the switching dielectric. Previously underestimated switch losses have caused over predicting the accelerator outputs. Accurate estimation of these losses is now necessary for new high-efficiency pulsed power devices where the switching

T. H. Martin; J. F. Seamen; D. O. Jobe

1993-01-01

263

GAME THEORY Thomas S. Ferguson  

E-print Network

GAME THEORY Thomas S. Ferguson Part III. Two-Person General-Sum Games 1. Bimatrix Games -- Safety. For a couple of good references with emphasis on applications in economics, consult the books, Game Theory for Applied Economists by Robert Gibbons (1992), Princeton University Press, and Game Theory with Economic

Ferguson, Thomas S.

264

Sex, Lies and Video Games  

ERIC Educational Resources Information Center

Sex and violence in video games is a social issue that confronts us all, especially as many commercial games are now being introduced for game-based learning in schools, and as such this paper polls teenage players about the rules their parents and teachers may or may not have, and surveys the gaming community, ie, game developers to parents, to

Kearney, Paul; Pivec, Maja

2007-01-01

265

Game Technology and Children  

NSDL National Science Digital Library

Children make up a large part of the market for computer and video games. This topic in depth explores some of the perceived negative and positive facets of games and their impact on children.A study by the Kaiser Family Foundation (1) finds that "children age zero to six spend as much time with TV, computers and video games as playing outside." Current discussions not only focus on perceived negative effects of games on children, such as this review by ERIC (2 ), but also the positive effects of games on learning, such as this article on literacy (3) or this article about cognitive processing (4 ). Many websites grade games for their content, such as this website (5 ), while others emphasize the interdisciplinary work done in game research (6 ) and offers tips for teachers and policy makers. The Info Lounge at this research center (7) answers some frequently asked questions about computer games (e.g., How do you study games from an academic perspective? and Are computer games violent?).

266

Combinatorial Game Theory, Well-Tempered Scoring Games, and a Knot Game  

E-print Network

Combinatorial Game Theory, Well-Tempered Scoring Games, and a Knot Game Will Johnson June 9, 2011 . . . . . . . . . . . . . . . . . . 7 1.2 Sums of Knots . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 I Combinatorial Game Theory 23 2 Introduction 24 2.1 Combinatorial Game Theory in general . . . . . . . . . . . . . 24 2

Morrow, James A.

267

Enhanced logical stochastic resonance under periodic forcing  

NASA Astrophysics Data System (ADS)

It was demonstrated recently that noise in an optimal window allows a bistable system to operate reliably as reconfigurable logic gates (Murali et al., 2009) [1], as well as a memory device (Kohar and Sinha, 2012) [11]. Namely, in a range of moderate noise, the system can operate flexibly, both as a NAND/AND/OR/NOR gate and a Set Reset latch. Here we demonstrate how the width of the optimal noise window can be increased by utilizing the constructive interplay of noise and periodic forcing, namely noise in conjunction with a periodic drive yields consistent logic outputs for all noise strengths below a certain threshold. Thus we establish that in scenarios where noise level is below the minimum threshold required for logical stochastic resonance (or stochastic resonance in general), we can add a periodic forcing to obtain the desired effects. Lastly, we also show how periodic forcing reduces the switching time, leading to faster operation of devices and lower latency effects.

Kohar, Vivek; Murali, K.; Sinha, Sudeshna

2014-08-01

268

Grab the Candy Corn Game  

NSDL National Science Digital Library

This blog post presents a game that provides provides practice in locating positions on a coordinate grid. A downloadable PDF document includes the game board, optional game pieces, directions and a recording sheet.

Kawas, Terry

2009-10-09

269

77 FR 30550 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...of Approved Tribal--State Class III Gaming Compact...Department of an extension to the Class III Gaming Compact between the Pyramid Lake...

2012-05-23

270

78 FR 54670 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...Affairs [DR.5B711.IA000813] Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...extension of Tribal--State Class III Gaming Compact...notice of the Extension of the Class III gaming compact between the Yankton Sioux...

2013-09-05

271

78 FR 33435 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Amendments...to Amend the Class III Tribal-State Gaming Compact between the Salt River...

2013-06-04

272

77 FR 45371 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...of Approved Tribal--State Class III Gaming Compact...This notice publishes an extension of Gaming between the Oglala Sioux Tribe and...

2012-07-31

273

78 FR 15738 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...of Approved Tribal--State Class III Gaming Compact...This notice publishes an extension of the gaming compact between the Rosebud Sioux...

2013-03-12

274

75 FR 38833 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...Paula Hart, Director, Office of Indian Gaming, Office of the Deputy Assistant...

2010-07-06

275

76 FR 8375 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...This notice publishes an extension of the Gaming Compact between the Oglala Sioux...

2011-02-14

276

78 FR 10203 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal State Class III Gaming Compact...Approval of the Class III Tribal- State Gaming Compact between the Chippewa-Cree...

2013-02-13

277

78 FR 62649 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...Affairs [DR.5B711.IA000813] Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...amendment to the Class III Tribal-State Gaming Compact (Amendment), between the...

2013-10-22

278

77 FR 41200 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...of Approved Tribal--State Class III Gaming Compact...Department of an extension to the Class III Gaming Compact between the State of...

2012-07-12

279

76 FR 165 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Tribe'') and the State of Wisconsin Gaming Compact of 1992, as Amended in 1999...L. Hart, Director, Office of Indian Gaming, Office of the Deputy Assistant...

2011-01-03

280

75 FR 68823 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Amendment...approval of the Amendments to the Class III Gaming Compact (Amendment) between the...

2010-11-09

281

76 FR 56466 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...of Approved Tribal--State Class III Gaming Compact...This notice publishes an approval of the gaming compact between the Flandreau Santee...

2011-09-13

282

77 FR 76514 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Approved Amended Tribal-State Class III Gaming Compact taking effect...L. Hart, Director, Office of Indian Gaming, Office of the Deputy Assistant...

2012-12-28

283

77 FR 59641 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Approved Amended Tribal-State Class III Gaming Compact...L. Hart, Director, Office of Indian Gaming, Office of the Deputy Assistant...

2012-09-28

284

76 FR 49505 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...publishes an extension of the Tribal-State gaming compact between the Oglala Sioux...

2011-08-10

285

76 FR 49505 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...ACTION: Notice of Tribal-State Class III Gaming Compact taking effect...L. Hart, Director, Office of Indian Gaming, Office of the Deputy Assistant...

2011-08-10

286

77 FR 5566 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Tribal--State Class III Gaming Compact Taking Effect...L. Hart, Director, Office of Indian Gaming, Office of the Deputy Assistant...

2012-02-03

287

75 FR 55823 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of approved Tribal-State Class III Gaming Compact...This notice publishes an extension of Gaming between the Oglala Sioux Tribe and...

2010-09-14

288

78 FR 62650 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...Affairs [DR.5B711.IA000813] Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...extension of Tribal-State Class III Gaming Compact...notice of the extension of the Class III gaming compact between the Rosebud Sioux...

2013-10-22

289

75 FR 61511 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...This notice publishes an extension of Gaming Compact between the Rosebud Sioux...

2010-10-05

290

78 FR 11221 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...This notice publishes an extension of the gaming compact between the Oglala Sioux...

2013-02-15

291

77 FR 59641 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...This notice publishes an extension of Gaming between the Rosebud Sioux Tribe and...

2012-09-28

292

77 FR 76514 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact taking effect...L. Hart, Director, Office of Indian Gaming, Office of the Deputy Assistant...

2012-12-28

293

76 FR 52968 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...of Approved Tribal--State Class III Gaming Compact...This notice publishes an extension of Gaming between the Rosebud Sioux Tribe and...

2011-08-24

294

76 FR 33341 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...of Approved Tribal--State Class III Gaming Compact...This notice publishes an extension of Gaming between the Rosebud Sioux Tribe and...

2011-06-08

295

78 FR 17428 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...approval of the Class III Tribal- State Gaming Compact between the Pyramid Lake...

2013-03-21

296

78 FR 17427 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...ACTION: Notice of Approved Amended Gaming Compact...publishes the approval of the Amended Gaming Compact between the...

2013-03-21

297

78 FR 78377 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...Affairs [DR.5B711.IA000814] Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...extension of Tribal-State Class III Gaming Compact...notice of the extension of the Class III gaming compact between the Yankton Sioux...

2013-12-26

298

78 FR 17427 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...State of Montana concerning Class III Gaming (Compact). DATES: Effective...

2013-03-21

299

77 FR 43110 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...of Approved Tribal--State Class III Gaming Compact...This notice publishes an extension of Gaming between the Rosebud Sioux Tribe and...

2012-07-23

300

78 FR 44146 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...ACTION: Notice of Tribal-State Class III Gaming Compact taking effect...III Amended and Restated Tribal-State Gaming Compact between the Shingle Springs...

2013-07-23

301

76 FR 11258 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Tribal--State Class III Gaming Compact taking effect...Tribal-State Compact for Regulation of Class III Gaming between the Confederated Tribes of...

2011-03-01

302

Combinatorial optimization games  

SciTech Connect

We introduce a general integer programming formulation for a class of combinatorial optimization games, which immediately allows us to improve the algorithmic result for finding amputations in the core (an important solution concept in cooperative game theory) of the network flow game on simple networks by Kalai and Zemel. An interesting result is a general theorem that the core for this class of games is nonempty if and only if a related linear program has an integer optimal solution. We study the properties for this mathematical condition to hold for several interesting problems, and apply them to resolve algorithmic and complexity issues for their cores along the line as put forward in: decide whether the core is empty; if the core is empty, find an imputation in the core; given an imputation x, test whether x is in the core. We also explore the properties of totally balanced games in this succinct formulation of cooperative games.

Deng, X. [York Univ., North York, Ontario (Canada); Ibaraki, Toshihide; Nagamochi, Hiroshi [Kyoto Univ. (Japan)

1997-06-01

303

National Indian Gaming Commission  

NSDL National Science Digital Library

The National Indian Gaming Commission is an independent federal regulatory agency, and along with regulating gaming activities on Indian lands, they are also responsible for "shielding Indian tribes from organized crime and other corrupting influences." The Commission's website is designed to inform interested parties about their ongoing activities, and visitors will find that the information here ranges from calendars of upcoming conferences to official decisions and actions taken by the Commission. First-time visitors may wish to start by looking over the FAQ section within the "About Us" area. Once there, they can find the answers to questions like "Do Indian tribes pay taxes?" and "What happens to the profits from Indian gaming operations?" Moving on, the "Laws & Regulations" area contains the text of such important documents as the Indian Gaming Regulatory Act and the Johnson Act. The site is rounded out by the "Reading Room", which contains recent and past bulletins, gaming ordinances, and a list of tribal gaming operations.

304

Stochastic Approximation Approach to Stochastic Programming  

E-print Network

Monte Carlo sampling techniques, namely, the Stochastic Approximation (SA) and the Sample. Average ... than 5. The aim of this paper is to compare two computational approaches based on Monte. Carlo sampling ..... does not exceed M2.

2007-10-03

305

Factor Trail Game  

NSDL National Science Digital Library

In this math game, learners identify the factors of a number to earn points. The score sheet used for this game provides a built-in assessment tool that teachers can use to check their students' understanding. This game also provides an opportunity for cooperative learning--learners check one another's work before points are awarded. This lesson guide includes questions for learners, assessment options, extensions, and reflection questions.

Vennebush., G. P.

2008-01-01

306

Predictive Game Theory  

NASA Technical Reports Server (NTRS)

Probability theory governs the outcome of a game; there is a distribution over mixed strat.'s, not a single "equilibrium". To predict a single mixed strategy must use our loss function (external to the game's players. Provides a quantification of any strategy's rationality. Prove rationality falls as cost of computation rises (for players who have not previously interacted). All extends to games with varying numbers of players.

Wolpert, David H.

2005-01-01

307

Science Review Games  

NSDL National Science Digital Library

These games are intended to help prepare students for the New York State Regent's Exams, but may be used by anyone to review science topics in a fun, interactive atmosphere. Subjects include Earth science, geology, astrononomy, and chemistry. Users are asked a question, and if they choose the correct answer, may attempt to score points in the game setting. A teacher's page provides information on how to search the site to locate games on specific topics.

308

Get-Moving Game  

NSDL National Science Digital Library

In this invention challenge activity, learners create an indoor game for one or two people that gets you moving. This lesson guide includes instructions on how to play an imagine new uses for old things game to play before the activity. Learners will also brainstorm activities that get people up and moving and follow the design process to invent a game, including the equipment and rules for playing it.

WGBH

2009-01-01

309

The Polar Bear Game  

NSDL National Science Digital Library

In this game, which is similar to Petals Around the Rose (cataloged separately), a player rolls 5 dice and asks the participants, How many polar bears are around the ice holes? The participants try to figure out the riddle (rules of the game) by studying the dice arrangements and the answers that correspond. This webpage extends the game to have players also determine the number of fish and plankton.

2010-10-24

310

The Game of Hex  

ERIC Educational Resources Information Center

In this article, the author discusses the game of Hex, including its history, strategies and problems. Like all good games, the rules are very simple. Hex is played on a diamond shaped board made up of hexagons. It can be of any size, but an 11x11 board makes for a good game. Two opposite sides of the diamond are labelled "red," the other two

Scott, Paul

2007-01-01

311

GAME THEORY Thomas S. Ferguson  

E-print Network

GAME THEORY Thomas S. Ferguson Part II. Two-Person Zero-Sum Games 1. The Strategic Form of a Game.4 The Minimax Theorem. 1.5 Exercises. 2. Matrix Games. Domination. 2.1 Saddle Points. 2.2 Solution of All 2 by 2 Matrix Games. 2.3 Removing Dominated Strategies. 2.4 Solving 2 ? n and m ? 2 Games. 2.5 Latin Square

Ferguson, Thomas S.

312

Healthy Gaming Video Game Design to promote Health  

PubMed Central

Background There is an increasing interest in health games including simulation tools, games for specific conditions, persuasive games to promote a healthy life style or exergames where physical exercise is used to control the game. Objective The objective of the article is to review current literature about available health games and the impact related to game design principles as well as some educational theory aspects. Methods Literature from the big databases and known sites with games for health has been searched to find articles about games for health purposes. The focus has been on educational games, persuasive games and exergames as well as articles describing game design principles. Results The medical objectives can either be a part of the game theme (intrinsic) or be totally dispatched (extrinsic), and particularly persuasive games seem to use extrinsic game design. Peer support is important, but there is only limited research on multiplayer health games. Evaluation of health games can be both medical and technical, and the focus will depend on the game purpose. Conclusion There is still not enough evidence to conclude which design principles work for what purposes since most of the literature in health serious games does not specify design methodologies, but it seems that extrinsic methods work in persuasion. However, when designing health care games it is important to define both the target group and main objective, and then design a game accordingly using sound game design principles, but also utilizing design elements to enhance learning and persuasion. A collaboration with health professionals from an early design stage is necessary both to ensure that the content is valid and to have the game validated from a clinical viewpoint. Patients need to be involved, especially to improve usability. More research should be done on social aspects in health games, both related to learning and persuasion. PMID:23616865

Brox, E.; Fernandez-Luque, L.; Tllefsen, T.

2011-01-01

313

A delay model for noise-induced bi-directional switching  

NASA Astrophysics Data System (ADS)

Many biological systems can switch between two distinct states. Once switched, the system remains stable for a period of time and may switch back to its original state. A gene network with bistability is usually required for the switching and stochastic effect in the gene expression may induce such switching. A typical bistable system allows one-directional switching, in which the switch from the low state to the high state or from the high state to the low state occurs under different conditions. It is usually difficult to enable bi-directional switching such that the two switches can occur under the same condition. Here, we present a model consisting of standard positive feedback loops and an extra negative feedback loop with a time delay to study its capability to produce bi-directional switching induced by noise. We find that the time delay in the negative feedback is critical for robust bi-directional switching and the length of delay affects its switching frequency. This paper is published as part of a collection in honour of Todd Dupont's 65th birthday.

Lei, Jinzhi; He, Guowei; Liu, Haoping; Nie, Qing

2009-12-01

314

Computer Cracks Go Game  

NSDL National Science Digital Library

Computers can now compete with humans not only in chess, but also in the board game Go. Go involves two players who each try to surround a territory with stones of their color. The player who gains the most territory (mostly by surrounding his opponent these with his own stones) wins the game. Dutch researcher Erik van der Werf, with funding from the Netherlands Organisation for Scientific Research, "achieved a world first" with a program that can solve the Go game for a 5x5 playing board. This article briefly describes the game and the technique used to develop the program.

315

Energy Choices Board Game  

NSDL National Science Digital Library

This board game teaches learners about energy decision making. Players select cards that determine the transportation and home design that will influence their expenses as they play. Situations and decisions arise during the game. Deciding to bike instead of drive, for example, means a player won't have to buy gas, but only rolls a 4-sided die instead of an 8-sided one, which means slower progress. A carbon tax must be paid by all players. Discussion questions and award certificates are provided for post-game analysis. Most game materials are available as files to download and print, but some (dice, paper) must be purchased.

Clarkson University

2008-01-01

316

Gaming in the Outdoors  

NSDL National Science Digital Library

In this set of outdoor games, learners increase their awareness of the outdoor environment by going on a scavenger hunt and an out-of-place hunt. In the first game, learners hunt for things like animal homes, food for different animals, and natural objects with shapes like square, circle, and triangle. In the second game, learners search on a trail that has been set up with natural objects in areas where they do not belong. Both games can be made simpler or more difficult depending on the learners' ages. Instructions are also provided for making ink prints and crayon rubbings of objects.

Science, Lawrence H.

1980-01-01

317

The Video Game Revolution  

NSDL National Science Digital Library

Video games may now have officially reached a new level of cultural and social importance, especially since PBS (and station affiliate KCTS) have seen fit to create this very interactive and informative site to complement their recent television special, "The Video Game Revolution". The television program tells the history of video games, starting all the way back in 1952, and proceeding all the way to the current home systems. Of course, this website offers a great deal of material to delight aficionados of this cultural phenomenon, including an interactive timeline of video game history and Flash-enabled specials on the impact of gaming, and of course the somewhat forgotten (but not totally gone) phenomenon of that old shopping mall standby, the arcade. The arcade that's featured on the site offers users the ability to play an old classic game (Galaga) and a "Name that Game" feature, where visitors must guess the game based on a brief sound clip. Of course, the Scout Report would be remiss if it didn't also mention that there's a Celebrity Game Quiz, which features such questions as "Which member of the Rat Pack appeared in a 1970s commercial for Magnavox?" If you can't wait to get to the site, it was Mr. Ring a Ding Ding himself, Frances Albert Sinatra.

318

Effective switching frequency multiplier inverter  

DOEpatents

A switching frequency multiplier inverter for low inductance machines that uses parallel connection of switches and each switch is independently controlled according to a pulse width modulation scheme. The effective switching frequency is multiplied by the number of switches connected in parallel while each individual switch operates within its limit of switching frequency. This technique can also be used for other power converters such as DC/DC, AC/DC converters.

Su, Gui-Jia (Oak Ridge, TN); Peng, Fang Z. (Okemos, MI)

2007-08-07

319

Cycle frequency in standard Rock-Paper-Scissors games: Evidence from experimental economics  

E-print Network

In the iconic game, standard Rock-Paper-Scissors (RPS) game, cyclic trajectory is predicted by evolutionary game theory but not by classical game theory. We conduct lab experiments of the standard RPS game to index the cycle. Our experiments are of traditional setting with discrete time and random matched. In the 12 samples of 300 rounds 'stochastic' social evolution trajectories, (1) We find the cycles not only exist but also persist; (2) We firstly test out the frequencies of cycles in this experiments; The observed frequency is about 0.028 +/- 0.007 period per experimental round. The application of the observed frequency on a dynamics model is illustrated. Using frequency of cycles to index the distance from equilibrium, we consider both of the time symmetry and the sampling size effect, both of which have the root in non-equilibrium statistical physics.

Xu, Bin

2013-01-01

320

Entanglement Guarantees Emergence of Cooperation in Quantum Prisoner's Dilemma Games on Networks  

NASA Astrophysics Data System (ADS)

It was known that cooperation of evolutionary prisoner's dilemma games fails to emerge in homogenous networks such as random graphs. Here we proposed a quantum prisoner's dilemma game. The game consists of two players, in which each player has three choices of strategy: cooperator (C), defector (D) and super cooperator (denoted by Q). We found that quantum entanglement guarantees emergence of a new cooperation, the super cooperation of the quantum prisoner's dilemma games, and that entanglement is the mechanism of guaranteed emergence of cooperation of evolutionary prisoner's dilemma games on networks. We showed that for a game with temptation b, there exists a threshold for a measurement of entanglement, beyond which, (super) cooperation of evolutionary quantum prisoner's dilemma games is guaranteed to quickly emerge, giving rise to stochastic convergence of the cooperations, that if the entanglement degree ? is less than the threshold , then the equilibrium frequency of cooperations of the games is positively correlated to the entanglement degree ?, and that if ? is less than and b is beyond some boundary, then the equilibrium frequency of cooperations of the games on random graphs decreases as the average degree of the graphs increases.

Li, Angsheng; Yong, Xi

2014-09-01

321

Forward-Reverse Switch  

NSDL National Science Digital Library

In this activity, learners build a switch to turn electrical circuits on and off. Learners can connect their switches to other projects they want to power and swing the popsicle stick around to control the direction of movement of the connected devices. Use this activity to introduce learners to concepts related to electrical circuits, switches, and polarity. Note: this activity requires the use of a drill, which is not included in the cost of materials.

Workshop, Fresno C.

2012-01-01

322

A nonlinear resonant switch  

Microsoft Academic Search

A resonant switch is introduced that uses linear tank elements. Zero-current switching is obtained even through the peak transistor voltage and current stresses can approach those of an equivalent ideal pulsewidth-modulated converter. Reduced switching loss without a substantial increase in conduction loss is therefore possible. An approximate analysis is outlined, and transistor peak-voltage and current stresses are shown to be

R. W. Erickson; A. F. Hernandez; A. F. Witulski; R. Xu

1989-01-01

323

Effects of noise on convergent game-learning dynamics  

NASA Astrophysics Data System (ADS)

We study stochastic effects on the lagging anchor dynamics, a reinforcement learning algorithm used to learn successful strategies in iterated games, which is known to converge to Nash points in the absence of noise. The dynamics is stochastic when players only have limited information about their opponents strategic propensities. The effects of this noise are studied analytically in the case where it is small but finite, and we show that the statistics and correlation properties of fluctuations can be computed to a high accuracy. We find that the system can exhibit quasicycles, driven by intrinsic noise. If players are asymmetric and use different parameters for their learning, a net payoff advantage can be achieved due to these stochastic oscillations around the deterministic equilibrium.

Sanders, James B. T.; Galla, Tobias; Shapiro, Jonathan L.

2012-03-01

324

Reusable fast opening switch  

DOEpatents

A reusable fast opening switch for transferring energy, in the form of a high power pulse, from an electromagnetic storage device such as an inductor into a load. The switch is efficient, compact, fast and reusable. The switch comprises a ferromagnetic semiconductor which undergoes a fast transition between conductive and insulating states at a critical temperature and which undergoes the transition without a phase change in its crystal structure. A semiconductor such as europium rich europhous oxide, which undergoes a conductor to insulator transition when it is joule heated from its conductor state, can be used to form the switch.

Van Devender, John P. (Albuquerque, NM); Emin, David (Albuquerque, NM)

1986-01-01

325

Reusable fast opening switch  

DOEpatents

A reusable fast opening switch for transferring energy, in the form of a high power pulse, from an electromagnetic storage device such as an inductor into a load. The switch is efficient, compact, fast and reusable. The switch comprises a ferromagnetic semiconductor which undergoes a fast transition between conductive and metallic states at a critical temperature and which undergoes the transition without a phase change in its crystal structure. A semiconductor such as europium rich europhous oxide, which undergoes a conductor to insulator transition when it is joule heated from its conductor state, can be used to form the switch.

Van Devender, J.P.; Emin, D.

1983-12-21

326

30 GHz tuned MEMS switches  

Microsoft Academic Search

This paper demonstrates the use of resonant tuning in high-isolation reflective MEMS electrostatic switches. Tuned switches can achieve higher isolation and a lower pulldown voltage than a comparable single element switch. An equivalent circuit model was developed for individual shunt capacitive membrane switches and then implemented in tuned circuits. The novel cross switch was developed on a high resistivity silicon.

Jeremy B. Muldavin; Gabriel M. Rebeiz

1999-01-01

327

Digital Game-Based Learning: Towards an Experiential Gaming Model  

ERIC Educational Resources Information Center

Online games satisfy the basic requirements of learning environments and can provide engaging learning experiences for students. However, a model that successfully integrates educational theory and game design aspects do not exist. Thus, in this paper an experiential gaming model that is based on experiential learning theory, flow theory and game

Kiili, Kristian

2005-01-01

328

Game Quantification on Automatic Structures Hierarchical Model Checking Games  

E-print Network

Game Quantification on Automatic Structures Hierarchical Model Checking Games Lukasz Kaiser kaiser@informatik.rwth-aachen.de Mathematische Grundlagen der Informatik RWTH Aachen Computer Science Logic 2006 Lukasz Kaiser (RWTH Aachen) Game Quantifier on Automatic Structures 1 / 21 #12;Overview Introduction Logic with Game Quantifier Hierarchical

Kaiser, £ukasz

329

Games Technology: Console Architectures, Game Engines and Invisible Interaction  

E-print Network

International Conference on Computer Games, Multimedia and Allied Technology (CGAT 2011) Editor: Dr. EdmondGames Technology: Console Architectures, Game Engines and Invisible Interaction Edmond Prakash at three core developments in games technology. First we will look at the architectural foundations

Li, Baihua

330

Video game values: Human-computer interaction and games  

Microsoft Academic Search

Current humancomputer interaction (HCI) research into video games rarely considers how they are different from other forms of software. This leads to research that, while useful concerning standard issues of interface design, does not address the nature of video games as games specifically. Unlike most software, video games are not made to support external, user-defined tasks, but instead define their

Pippin Barr; James Noble; Robert Biddle

2007-01-01

331

Perturbed zero-sum games with applications to dynamic games  

E-print Network

Perturbed zero-sum games with applications to dynamic games Eitan ALTMAN INRIA, B.P. 93 2004 Route of South Australia The Levels, Australia, 5095 Abstract This paper deals with perturbed matrix games. The main result is that the sets of solutions of perturbed games converge to subsets of solutions

332

Population games, stable games, and passivity Michael J. Fox  

E-print Network

Population games, stable games, and passivity Michael J. Fox Jeff S. Shamma March 31, 2013 July 23, 2013 (revised) September 2, 2013 (revised) Abstract The class of "stable games", introduced by Hofbauer evolutionary dynamics. We show that stable games can be identified as a special case of the feedback

Shamma, Jeff S.

333

Representation of Finite Games as Network Congestion Games  

E-print Network

Representation of Finite Games as Network Congestion Games Igal Milchtaich Department of Economics Bar-Ilan University Israel Abstract--Weighted network congestion games are used for modeling or communication links. In spite of their special form, these games are not fundamentally special: every finite

Paris-Sud XI, Université de

334

Permissive strategies: from parity games to safety games  

E-print Network

Permissive strategies: from parity games to safety games Julien Bernet, David Janin, Igor {bernet|janin|igw}@labri.fr Abstract It is proposed to compare strategies in a parity game by comparing the sets of behaviours they allow. For such a game, there may be no winning strategy that encompasses all

Paris-Sud XI, Université de

335

Background music reactive games  

Microsoft Academic Search

In this paper, we discuss the concept of games that react to their background music. Instead of limiting the player to a fixed set of songs, the background music can be any song chosen from the player's own music collection. Due to the relative simplicity of such existing game titles, we wanted to explore the potential of the concept more

Juha Arrasvuori; Jukka Holm

2010-01-01

336

Game Theory .net.  

ERIC Educational Resources Information Center

States making game theory relevant and accessible to students is challenging. Describes the primary goal of GameTheory.net is to provide interactive teaching tools. Indicates the site strives to unite educators from economics, political and computer science, and ecology by providing a repository of lecture notes and tests for courses using

Shor, Mikhael

2003-01-01

337

The Guppy Game  

ERIC Educational Resources Information Center

Adaptation, interactions between species and their environments, and change over time are fundamental principles in biology. They represent aspects of two of the big ideas in science: evolution and natural selection. To help students understand these ideas, the authors developed the "Guppy Game." In this article, they describe the game and how

Blattner, Margaret; Hug, Barbara; Watson, Patrick; Korol, Donna

2012-01-01

338

The Function Game.  

ERIC Educational Resources Information Center

Describes the function game, or input-output game, and its benefits. One person is the computer and thinks of a rule. Classmates give input values and the computer gives the corresponding output. The object is to guess the rule. Benefits include the use of mental mathematics, problem solving, communication opportunities, and fostering key ideas,

Rubenstein, Rheta N.

1996-01-01

339

Video game induced seizures  

Microsoft Academic Search

Fifteen patients who experienced epileptic seizures while playing video games are described together with a review of 20 cases in the English literature. Nine of the 15 cases and all but two of the reported cases experienced their first seizure while playing video games. Two thirds of patients had idiopathic generalised epilepsy and mainly reported generalised tonic clonic seizures, but

C D Ferrie; P De Marco; R A Grnewald; S Giannakodimos; C P Panayiotopoulos

1994-01-01

340

The Clean Air Game.  

ERIC Educational Resources Information Center

Introduces the Clean Air game which teaches about air quality and its vital importance for life. Introduces students to air pollutants, health of people and environment, and possible actions individuals can take to prevent air pollution. Includes directions for the game. (YDS)

Avalone-King, Deborah

2000-01-01

341

The Super Volcano Game  

NSDL National Science Digital Library

How would you handle a volcano diasater? In this game, you've just been appointed chief of the Emergency Management Agency for Bluebear County. Everyone is counting on you to handle the eruption of Mount Spur. Download this game to find out. Before you play, make sure Flash is installed on your computer.

British Broadcasting Corporation

342

Carbon Cycle Game  

NSDL National Science Digital Library

In this interactive, regionally-relevant carbon cycle game, students are challenged to understand the role of carbon in global climate change. They imagine that they are carbon molecules and travel via different processes through carbon reservoirs on the Colorado Plateau (the Four Corners area of Arizona, Colorado, New Mexico and Utah). This game can be adapted to other regions.

Colorado Plateau Climate Science and Solutions Partnership

343

Food Chain Game  

NSDL National Science Digital Library

In this outdoor game, learners role play populations linked in a food chain. The resource suggests a chain with plant, grasshopper, frog, and hawk, but other food chains can be role-played, for example plankton, anchovy, salmon, sea lion. The more "animals" (learners!) the merrier for this active game.

Lawrence Hall of Science

1979-01-01

344

The Chain Game  

NSDL National Science Digital Library

With this game, students explore the connection between climate, genetic variation and the transmission of hantavirus. A board and game pieces are provided. The resource is supported by teacher background information, assessments, and a scoring rubric. This is Activity 1 of the learning module, Human Health, Climate and Disease: A Critical Connection, part of the lesson series, Potential Consequences of Climate Variability and Change.

2012-08-03

345

Communication Games and Simulations.  

ERIC Educational Resources Information Center

Games and simulations can be thought of as experiential learning activities for classroom use. Games are activities in which people agree to abide by a set of conditions in order to attain a desired state or end, and simulations are activities that model reality. In this publication, it is suggested that five dimensions be considered in

Covert, Anita; Thomas, Gordon L.

346

Games and childhood obesity  

Technology Transfer Automated Retrieval System (TEKTRAN)

Videogames can be used to help children change their obesity-related diet and physical activity behaviors. A review of the relevant literature in this special issue of the Games for Health Journal indicated that video games did influence children's adiposity, but only among children who were alread...

347

Fractions Dolphin Racing Game  

NSDL National Science Digital Library

In this online interactive game, students are tasked with using a variety of strategies to quickly compare fractions. By choosing the largest fraction, the student's dolphin travels further faster. This game encourages students to interpret the meaning of fractions and rely on strategies that go beyond finding common denominators.

Adults, Skillwise: E.

2012-08-03

348

Cournot and Bertrand Games.  

ERIC Educational Resources Information Center

Describes a series of matrix choice games that illustrate for students the concepts of monopoly, shared monopoly, Cournot, Bertrand, and Stackelberg behavior given either perfect complements or perfect substitutes. Suggests that the use of the games also allows for student dialogue about international trade and price wars. (JEH)

Beckman, Steven R.

2003-01-01

349

Games People Play  

ERIC Educational Resources Information Center

Today's video games aren't even a little bit like the ones that came out a few decades ago. Not only has the underlying technology dramatically improved, but the medium has matured remarkably in the years since "Pong" and "Space Invaders." ruled the arcades. The artistic promise of video games has yet to be fulfilled. The current state of the

VerBruggen, Robert

2012-01-01

350

Building Fractions Game  

NSDL National Science Digital Library

In this math lesson, learners investigate fractions by playing a game. To play, learners roll two dice and create a fraction, using the larger number rolled as the denominator and the smaller number as the numerator. Learners then build that fractional amount on the game mat with pattern block pieces. The winner is the player who builds the greatest number of hexagons.

Lessonplans, Utah

2012-10-22

351

Gaming and Gamification  

ERIC Educational Resources Information Center

The New Media Consortium's "Horizon Report" for higher education cites games and gamification with a time-to-adoption of two to three years. The use of digital games is almost ubiquitous in social media and is swiftly gaining popularity in other industries as well. Many in higher education have embraced gamification due to its

Mallon, Melissa

2013-01-01

352

Gaming in Technology Education  

ERIC Educational Resources Information Center

The authors have devoted a considerable amount of time evaluating the role that gaming and game development plays in the form of curricula integration and as a future career focus for students interested in this field. From the research conducted through the completed National Science Foundation (NSF) project, VisTE: Visualization in Technology

Clark, Aaron C.; Ernst, Jeremy V.

2009-01-01

353

theoretical population biology 50, 368393 (1996) Lotka's Game in PredatorPrey Theory  

E-print Network

theoretical population biology 50, 368393 (1996) Lotka's Game in PredatorPrey Theory: Linking that extinctions due to demographic stochasticity dominate the dynamics. Local extinction dynamics produce wave of population biology's goals is to understand population level dynamics given the behavior, physiology

Wilson, Will

354

Game Theory Professional Journals  

NSDL National Science Digital Library

This website has a wealth of resources on game theory and its applications to economics, business, political science, computer science, and other disciplines. Some of the resources include links to journals, associations, teaching resources, and major web portals. From the links provided, visitors can read about the history of game theory, experiment with games that demonstrate key concepts in a fun, interactive way, and review course syllabi and other relevant documents on game theory. The collection is intended to provide resources that make the material more approachable for students. Educators are requested to submit lecture notes, teaching strategies, comments on textbooks, or other suggestions; while students are encouraged to submit commentary on their experiences with learning game theory.

Shor, Mike

355

Derivative Matching Game  

NSDL National Science Digital Library

Once again, the Mathematical Association of America has struck instructional gold with this latest gem from their online collection of resources for mathematics educators. Created by Barbara Margolius, this derivative matching game presents users with a game board showing graphs of functions on cards. Essentially, the goal of the game is to match the functions with their derivatives. Visitors can begin by reading an overview of the game, along with some brief instructions, and then they should dive right in. The game can also be customized to match functions with just first derivatives or both first and second derivatives. Mathematics educators will have a lot of fun with this one, and even the mathematically uncertain can be drawn into the fold with this easy to use resource.

2009-05-29

356

Derivative Matching Game  

NSDL National Science Digital Library

Once again, the Mathematical Association of America has struck instructional gold with this latest gem from their online collection of resources for mathematics educators. Created by Barbara Margolius, this derivative matching game presents users with a game board showing graphs of functions on cards. Essentially, the goal of the game is to match the functions with their derivatives. Visitors can begin by reading an overview of the game, along with some brief instructions, and then they should dive right in. The game can also be customized to match functions with just first derivatives or both first and second derivatives. Mathematics educators will have a lot of fun with this one, and even the mathematically uncertain can be drawn into the fold with this easy to use resource.

357

Avatars in Analytical Gaming  

SciTech Connect

This paper discusses the design and use of anthropomorphic computer characters as nonplayer characters (NPCs) within analytical games. These new environments allow avatars to play a central role in supporting training and education goals instead of planning the supporting cast role. This new science of gaming, driven by high-powered but inexpensive computers, dedicated graphics processors and realistic game engines, enables game developers to create learning and training opportunities on par with expensive real-world training scenarios. However, there needs to be care and attention placed on how avatars are represented and thus perceived. A taxonomy of non-verbal behavior is presented and its application to analytical gaming discussed.

Cowell, Andrew J.; Cowell, Amanda K.

2009-08-29

358

A game for space  

NASA Astrophysics Data System (ADS)

As countermeasure to heavy workloads or monotony, astronauts have drawn on leisure activities imported from Earth or invented in situ. Aside from consumption of media, physical exercise, Earth observation, communication with ground or crew and the practising of instruments, also games play an important role. With a few exceptions, the emphasis, however, lies on virtual games and software applications. A review of play activities in orbit and their benefits to date suggests a need for additional recreational opportunities. In response, an interactive strategy game for use in microgravity is presented that relies on interlocking sphere-shaped game pieces in order to make the most of the kinetic and sensory potential of reduced gravity conditions. Aside from the play value and aesthetics of this reconfigurable modular game structure, the activity may help maintain and enhance manual dexterity, mental alertness and sociability amongst the crew. The design solution and prototype are presented and needs for further research and development are outlined.

Huplik-Meusburger, Sandra; Aguzzi, Manuela; Peldszus, Regina

2010-02-01

359

Game Theory and Boosting Manfred K. Warmuth  

E-print Network

Game Theory and Boosting Manfred K. Warmuth University of California, Santa Cruz Game Theory Class.K.Warmuth et.al. (UCSC) Game Theory and Boosting Game Theory Class, UCSC, March 3, 2009 / 45 #12;Outline 1 Zero.K.Warmuth et.al. (UCSC) Game Theory and Boosting Game Theory Class, UCSC, March 3, 2009 / 45 #12;Zero-sum games

Warmuth, Manfred K.

360

Instantaneous stochastic perturbation theory  

E-print Network

A form of stochastic perturbation theory is described, where the representative stochastic fields are generated instantaneously rather than through a Markov process. The correctness of the procedure is established to all orders of the expansion and for a wide class of field theories that includes all common formulations of lattice QCD.

Martin Lscher

2014-12-17

361

Succession Model Landscape Stochasticity  

E-print Network

100 1000 10000 patch sizes birth rate both Disturbance Model Landscape Stochasticity Low Control High" accomplished by incrementing the patch birth rate (Control: s = a = 10) A simple model of species viabilitySuccession Model Landscape Stochasticity Low Control High Very High ThresholdMultiplier 0.1 1 10

362

When the macroscopic game is the quantum game?  

E-print Network

An example of the macroscopic game of two partners consisting of two classical games played simultaneously with special dependence of strategies is considered. The average profit of each partner is equal to the average profit obtained in the quantum game with two noncommuting operators for the spin one half system with strategies defined by the wave function. Nash equilibria in the macroscopic game coincide with Nash equilibria of the quantum game.

A. A. Grib; G. N. Parfionov

2005-02-07

363

BOOK REVIEWS Game theory and  

E-print Network

BOOK REVIEWS Game theory and evolutionary ecology Evolutionary Games & Population Dynamics by J 521 62365 0 / 0 521 62579 X Game Theory & Animal Behaviour edited by L.A. Dugatkin and H.K. Reeve Oxford University Press, 1998. £55.00 hbk (xiv 320 pages) ISBN 0 19 509692 4 The liaison between game

Czárán, Tamás

364

Stages for Children Inventing Games  

ERIC Educational Resources Information Center

This article offers practical advice for teachers interested in using Inventing Games (IG) as a way to facilitate learning about game structures, rules, and the principles of fair play that they can apply not only to game play, but to everyday life as members of a democratically organized society. Inventing Games gives students the opportunity to

Butler, Joy

2013-01-01

365

Teaching Game Sense in Soccer  

ERIC Educational Resources Information Center

"Game sense" is a sport-specific iteration of the teaching games for understanding model, designed to balance physical development of motor skill and fitness with the development of game understanding. Game sense can foster a shared vision for sport learning that bridges school physical education and community sport. This article explains how to

Pill, Shane

2012-01-01

366

Evolutionary game Karl Sigmund* and  

E-print Network

Primer Evolutionary game theory Karl Sigmund* and Martin A. Nowak Ever since Darwin read Malthus, the theory of evolution has benefited from the interaction of ecology with economics. Evolutionary game theory belongs to this tradition: it merges population ecology with game theory. Game theory originally

Nowak, Martin A.

367

Video Games: Competing with Machines.  

ERIC Educational Resources Information Center

This study was designed to compare the attitudinal and lifestyle patterns of video game players with the amount of time they play, the number of games they play, and the types of video games they play, to determine whether their personal use of time and attitude toward leisure is different when playing video games. Subjects were 200 individuals

Hanson, Jarice

368

Video Games, Learning, and Content  

Microsoft Academic Search

In this paper, I argue both that good video games recruit good learning and that game design is inherently connected to designing good learning for players. Good game design has a lot to teach us about good learning and contemporary learning theory has something to teach us about how to design even better and deeper games. I view learning in

James Paul Gee

369

Play Chinese Games. 1987, Revised.  

ERIC Educational Resources Information Center

This document, designed to introduce all ages to a selection of popular Chinese games, describes these games and provides instructions and materials for making the items needed to play most of them. Section 1 suggests class activities that can be related to some of the games. Section 2 presents instructions for the physical or outdoor games of:

White, Caryn

370

Simple Games . . . or Are They?  

ERIC Educational Resources Information Center

Students today begin using computers and playing video games as early as two years old. The technology behind these games is more complicated than most people can imagine. In this article, the author presents some simple number games which seem easy at the beginning, but as the games are repeated, mathematical content becomes more of the focus

Arn, Susan Kyle

2006-01-01

371

Creating Intelligent Agents in Games  

Microsoft Academic Search

Game playing has long been a central topic in artificial intelligence. Whereas early research focused on utilizing search and logic in board games, machine learning in video games is driving much of the recent research. In video games, intelligent behavior can be naturally captured through interaction with the environment, and biologically inspired techniques such as evolutionary computation, neural networks, and

Risto Miikkulainen

372

Computer Games for Visualization and  

E-print Network

Games Get Serious Computer Games for Visualization and More by Tim Holt #12;The Story Historically solution Consider computer game concepts and technology to enable visualization and interaction in 3d virtual space #12;Computer games are a powerful and driving force in 3d visualization and interaction

Wright, Dawn Jeannine

373

Video Games and Civic Engagement  

ERIC Educational Resources Information Center

According to a national telephone survey by the Pew Internet Project, 99 percent of boys and 94 percent of girls ages 12-17 play computer, Web, portable, or console games; and 50 percent play such games daily. The survey report, Teens, Video Games, and Civics, examines the extent and nature of teens' game playing and sheds some light on the

Perkins-Gough, Deborah

2009-01-01

374

Simple Games: Weightedness and Generalizations  

E-print Network

Simple Games: Weightedness and Generalizations A Dissertation Submitted to the Department contributes to the program of numerical characterisation and classifi- cation of simple games outlined is what makes a simple game a weighted majority game. The necessary and sufficient con- ditions

Slinko, Arkadii

375

Games on graphs Milos Stojakovic  

E-print Network

Games on graphs Milos Stojakovi´c Department of Mathematics and Informatics, University of Novi Sad, Serbia milos.stojakovic@dmi.uns.ac.rs http://www.inf.ethz.ch/personal/smilos/ Abstract. Positional Games is a branch of Combinatorics which focuses on a variety of two player games, ranging from well-known games

Stojakovic, Milos

376

Online Games: Categorization of Attacks  

Microsoft Academic Search

With the emergence of Internet technology, online games have recently become a very successful industry. As a consequence, the numbers of thefts, cheats, vandalisms, threats and illegal gambling cases from online gaming have increased. This paper presents an analysis of the attacks in online games; we define a classification of the attacks in online game with respect to the objectives

Y. Lyhyaoui; A. Lyhyaoui; S. Natkin

2005-01-01

377

Security Design in Online Games  

Microsoft Academic Search

The emergence of online games has fundamentally changed security requirements for computer games, which previ- ously were largely concerned with copy protection. In this paper, we examine how new security requirements impact the design of online games by using online Bridge, a sim- ple client-server game, as our case study. We argue that se- curity is emerging as an inherent

Jeff Jianxin Yan

2003-01-01

378

Parrondo Games and Quantum Algorithms  

E-print Network

We pursue the possible connections between classical games and quantum computation. The Parrondo game is one in which a random combination of two losing games produces a winning game. We introduce novel realizations of this Parrondo effect in which the player can `win' via random reflections and rotations of the state-vector, and connect these to known quantum algorithms.

Chiu Fan Lee; Neil Johnson

2002-03-10

379

International Journal of Game Theory (1989) 18:195-207 RegularSimple Games  

E-print Network

International Journal of Game Theory (1989) 18:195-207 RegularSimple Games By E. Einy1 and E games, the regular and the strongly regular games. We show that the strongly regular games are those for the class of finite weighted majority games within the finite simple games.We alsoprove that regular games

Lehrer, Ehud

380

The Electrical Switch  

NSDL National Science Digital Library

This activity is inquiry-based in that students will perform the activity before they formally learn about how a switch works. They will use a multimeter to discover the different settings on a triple-throw switch. The teacher should show the students how

Horton, Michael

2009-05-30

381

Closing photoconductive semiconductor switches  

Microsoft Academic Search

One of the most important limitations of Photoconductive Semiconductor Switches (PCSS) for pulsed power applications is the high laser powers required to activate the switches. In this paper, we discuss recent developments on two different aspects of GaAs PCSS that result in reductions in laser power by a factor of nearly 1000. The advantages of using GaAs over Si are

G. M. Loubriel; F. J. Zutavern; H. P. Hjalmarson; M. W. O'Malley

1989-01-01

382

Cheating Behaviors in Online Gaming  

Microsoft Academic Search

Online game cheating is a rampant misbehavior in the domain of online gaming. However, there is still lack of research in\\u000a attempt to understand online game cheating. Hence, this paper focuses on the available literature on cheating and gaming to\\u000a explore and understand the phenomenon of online game cheating. This paper examines the frameworks of cheating and how virtual\\u000a community

Henry Been-lirn Duh; Vivian Hsueh-hua Chen

2009-01-01

383

Exploring Game Experiences and Game Leadership in Massively Multiplayer Online Role-Playing Games  

ERIC Educational Resources Information Center

This study explored the in-game experiences of massively multiplayer online role-playing game (MMORPG) players focusing on game leadership and offline leadership. MMORPGs have enormous potential to provide gameplayers with rich social experiences through various interactions along with social activities such as joining a game community, team play

Jang, YeiBeech; Ryu, SeoungHo

2011-01-01

384

Effects of adaptive dynamical linking in networked games  

NASA Astrophysics Data System (ADS)

The role of dynamical topologies in the evolution of cooperation has received considerable attention, as some studies have demonstrated that dynamical networks are much better than static networks in terms of boosting cooperation. Here we study a dynamical model of evolution of cooperation on stochastic dynamical networks in which there are no permanent partners to each agent. Whenever a new link is created, its duration is randomly assigned without any bias or preference. We allow the agent to adaptively adjust the duration of each link during the evolution in accordance with the feedback from game interactions. By Monte Carlo simulations, we find that cooperation can be remarkably promoted by this adaptive dynamical linking mechanism both for the game of pairwise interactions, such as the Prisoner's Dilemma game (PDG), and for the game of group interactions, illustrated by the public goods game (PGG). And the faster the adjusting rate, the more successful the evolution of cooperation. We also show that in this context weak selection favors cooperation much more than strong selection does. What is particularly meaningful is that the prosperity of cooperation in this study indicates that the rationality and selfishness of a single agent in adjusting social ties can lead to the progress of altruism of the whole population.

Yang, Zhihu; Li, Zhi; Wu, Te; Wang, Long

2013-10-01

385

Effects of adaptive dynamical linking in networked games.  

PubMed

The role of dynamical topologies in the evolution of cooperation has received considerable attention, as some studies have demonstrated that dynamical networks are much better than static networks in terms of boosting cooperation. Here we study a dynamical model of evolution of cooperation on stochastic dynamical networks in which there are no permanent partners to each agent. Whenever a new link is created, its duration is randomly assigned without any bias or preference. We allow the agent to adaptively adjust the duration of each link during the evolution in accordance with the feedback from game interactions. By Monte Carlo simulations, we find that cooperation can be remarkably promoted by this adaptive dynamical linking mechanism both for the game of pairwise interactions, such as the Prisoner's Dilemma game (PDG), and for the game of group interactions, illustrated by the public goods game (PGG). And the faster the adjusting rate, the more successful the evolution of cooperation. We also show that in this context weak selection favors cooperation much more than strong selection does. What is particularly meaningful is that the prosperity of cooperation in this study indicates that the rationality and selfishness of a single agent in adjusting social ties can lead to the progress of altruism of the whole population. PMID:24229137

Yang, Zhihu; Li, Zhi; Wu, Te; Wang, Long

2013-10-01

386

Seville Game Theory Group  

NSDL National Science Digital Library

Jesus Mario Bilbao Arrese, a Professor of Applied Mathematics at the University of Seville, heads the Seville Game Theory group (SGT). On this website, visitors will find a selection of publications by members of the group, including papers, preprints and PhD theses. The Blackboard section includes various position papers, mostly in Spanish, which address issues such as the value of using scientific methods to understand, design and analyze complex voting systems. The website also provides links to Economics and Mathematics associations, information on conferences on game theory, and links to related journals and book series. The Download area also provides links to online resources that address topics related to game theory.

387

Leaps and Flutters Game  

NSDL National Science Digital Library

This online, interactive "Chutes and Ladders" type of game is for ages 7-9 and can be played with a friend or against the computer. As players land on squares, depending on the described action, they either "leap" frog ahead if they help the environment or butterfly "flutter" back if they do not. The website includes a short explanation of why we should care about frogs and butterflies, as well as some facts about some of the activities on the game board and why they are good or not good for the environment. A printable version of the board game is also available.

388

Web of Life Game  

NSDL National Science Digital Library

This offline OLogy game is a fun way to illustrate how all the organisms in an ecosystem are connected and depend on one another to survive. To play this game, you'll need at least six students and index cards, a marker/pen, and a ball of twine. A list of organisms to connect is included. As students toss the ball of twine to each other, they make connections between the organisms they are linking. The game ends with a discussion about what would happen to the "web of life" that's been created if an organism left the ecosystem.

389

Fission and Fusion Game  

NSDL National Science Digital Library

In this activity, students play a board game where they learn the characteristics of and differences between fission and fusion, as well as the real world applications of these energy-releasing reactions. Reproducible game cards and and game board are included in the resource. The investigation supports material presented in chapter 3, "What Heats the Earth's Interior?" in the textbook, Energy flow, part of the Global System Science, an interdisciplinary course for high school students that emphasizes how scientists from a wide variety of fields work together to understand significant problems of global impact.

390

Reliable switching in MRAM and multiferroic logic  

NASA Astrophysics Data System (ADS)

Low reliable writing in spintronic devices limits their applicability in the automotive and defense industries. Coupling stochastic macromagnetic simulator with quantum transport, we show how greater reliable switching can be achieved in MRAM and multiferroic logic. Using a combination of spin-transfer torque and small applied perpendicular field in MRAM, the error rate can be considerably reduced for a given voltage pulse. In multiferroic logic, strain plays the role of the magnetic field. Information is passed along an array of nanomagnets (NM) (magnetostrictive + piezoelectric layers) through dipole coupling with neighboring NMs. A low voltage applied to the piezoelectric element causes the NM's magnetization to switch to its hard axis. Upon releasing the stress, the magnetization of the NM relaxes to the easy axis, with its final orientation determined by the dipolar coupling with the left NM, thus achieving a low power Bennett clocked computation. In the face of stagnation points along the potential energy landscape, the success rate of the straintronic switching can be controlled with by how fast the stress is removed from the NM. (Funding: DARPA, GRANDIS, NSF-NEB).

Munira, Kamaram; Bandyopadhyay, Supriyo; Atulasimha, Jayasimha; Chen, Eugene; Ghosh, Avik W.

2012-02-01

391

Learning Polylingual Topic Models from Code-Switched Social Media Documents  

E-print Network

: ¡Don Samuel es un crack! #VamosM´exico #DaleTri RT @User4: Arriba! Viva Mexico! Advanced to GOLD. medal to the Gold medal game in the 2012 Olympics in code-switched Spanish and En- glish. can be folded in during

Dredze, Mark

392

Robust Stochastic Games and Applications to CounterTerrorism Strategies  

Microsoft Academic Search

This report presents a new methodology for strategic decision making under uncertainty and presence of adversaries. This investigation is motivated by the need to determine optimal strategies under uncertainty against an adversarial and adaptive opponent. Such problems arise in the context of terrorism threats. To model investment decisions that pertain to homeland security, one should account for both uncertainty and

Erim Kardes

2005-01-01

393

Algebraic Stochastic Calculus  

E-print Network

We develop the foundations of Algebraic Stochastic Calculus, with an aim to replacing what is typically referred to as Stochastic Calculus by a purely categorical version thereof. We first give a sheaf theoretic reinterpretation of Probability Theory. We regard probability spaces (X, F, P) as Grothendieck sites (F, J_P) on which Brownian motions are defined via sheaves in symmetric monoidal infinity-categories. Due to the complex nature of such a formalism we are naturally led to considering a purely categorical, time independent formalism in which stochastic differential equations are replaced by studying problems in deformation theory.

Renaud Gauthier

2014-07-25

394

Telecommunications: Switches and Hubs  

NSDL National Science Digital Library

We all know how important computers are in our every day communication, but do you know how the computer in your office transfers information between the others? This online slideshow provided by Wisc-Online and the National Science Foundation explains the difference between a switch and a hub and the reasons to use them. For example, with helpful animations and a personalized speed, one can learn that hubs often cause broadcast collisions and are less efficient than switches when trying to send information quickly among networked computers. This is great for students and teachers introducing switches and hubs to their telecommunications repertoire.

Bartelt, Terry L.

2009-10-07

395

Photoconductive switch package  

DOEpatents

A photoconductive switch is formed of a substrate that has a central portion of SiC or other photoconductive material and an outer portion of cvd-diamond or other suitable material surrounding the central portion. Conducting electrodes are formed on opposed sides of the substrate, with the electrodes extending beyond the central portion and the edges of the electrodes lying over the outer portion. Thus any high electric fields produced at the edges of the electrodes lie outside of and do not affect the central portion, which is the active switching element. Light is transmitted through the outer portion to the central portion to actuate the switch.

Ca[rasp, George J

2013-10-22

396

Switching to Iloperidone.  

PubMed

Objective: To describe secondary analyses from a 12-week, randomized, open-label trial where adult schizophrenia outpatients receiving risperidone, olanzapine, or aripiprazole were switched to iloperidone. Methods: Patients switched to iloperidone were randomized into 2 groups - one group where the dose of the antecedent antipsychotic was titrated downwards and discontinued by 2 weeks, and the other group where the antecedent antipsychotic was abruptly stopped. A total of 500 patients were randomized and received open-label iloperidone (gradual switch, n=240; immediate switch, n=260), with 175, 155, and 170 patients switched from risperidone, olanzapine, and aripiprazole, respectively. All patients were titrated on iloperidone to an initial target dose of 12 mg/day (6 mg twice a day) by Day 4 after which iloperidone could be flexibly dosed between 12 to 24 mg/day (6 to 12 mg twice a day), as per clinical judgment (median dose at study end was 16 mg/day). Adaptations of the Clinical Global Impression-Severity (CGI-S) scale were used to evaluate clinical changes that occurred from baseline over 12 weeks of treatment, providing data on efficacy (E-CGI-S) and safety (ST-CGI-S), as well as on an integrated measure of severity (I-CGI-S) and change (I-CGI-C). Other assessments included the reporting of adverse events (AEs), study discontinuation, body weight, and metabolic variables. Results:Improvement was steady throughout the study for both gradual- and immediate-switch groups starting at Week 1 and continuing through Week 12. Discontinuations due to AEs in the first 2 weeks of treatment were higher for the immediate-switch group compared with the gradual-switch group (10.8% vs. 5.4%, NNT 19, 95% CI 10-151). Fewer patients in the gradual- switch group experienced dizziness as an AE, whereas a higher percentage of patients in the immediate-switch group exhibited earlier onset of a therapeutic response within the first 2 weeks; both groups were comparable thereafter with low rates of dizziness and similar efficacy outcomes. Conclusions: Switching to iloperidone can be accomplished either with a gradual crossover or immediate discontinuation of the prior antipsychotic; however, the immediate-switch method is associated with greater proportion of initial dizziness. The observed outcomes are consistent with what has been previously reported regarding iloperidone's favorable akathisia/EPS profile and modest impact on somnolence/sedation, body weight, and metabolic variables.. PMID:25367165

Citrome, Leslie; Weiden, Peter J; Gus, Alva; Glick, Ira D; Jackson, Richard; Mattingly, Greg; Kianifard, Farid; Meng, Xiangyi; Winseck, Adam

2014-11-01

397

Stinging Insect Matching Game  

MedlinePLUS

... Resources My Membership About the AAAAI Share | Stinging Insect Matching Game Stinging insects can ruin summer fun for those who are ... the difference between the different kinds of stinging insects in order to keep your summer safe and ...

398

The Confidence Game  

NSDL National Science Digital Library

Students are usually quick to draw conclusions about their surroundings. Their generalizations, however, are often based on a single experience or even a story recounted by a friend. As we gain more experience in the world, out ability to reason inductively improves. The ability to draw broad conclusions also improves with an understanding of likelihood and probability, and dice games are a popular way to introduce these concepts to students.One such game was developed after years of judging and discussing science-fair projects with students who had no understanding of why they should have repeated trials or treatments in their experiments. Intended for students in fourth through sixth grade, the game lets students discover why collecting repeated observations leads to greater confidence inf a conclusion. Rather than presenting the concepts of replication and certainty as facts, playing a game provides an engaging environment in which students discover these principles themselves.

Corey, Leah M.; Braude, Stan

2006-09-01

399

Athens 2004 Olympic Games  

NSDL National Science Digital Library

The 2004 Olympic Summer Games may be several months away, but preparations have been going on for many months, and the city of Athens is looking forward to hosting its first official Olympic Games competition since 1896. As one might expect, the site's main page offers a veritable cornucopia of information on visiting Athens, accommodations, ticket information, and a special area designed for young people. Additionally, the site also provides extensive material on the Paralympic Games, which will also take place this summer. Visitors will want to take a look at the key dates section, as it offers details on when and where each competitive event will take place, along with the ever-popular opening and closing ceremonies. The site has some nice extra features, such as volunteer applications for the Games, e-cards to send to friends and family, and information on the extensive transportation infrastructure improvements added to the urban fabric of Athens for this historic event.

400

Advertising in computer games  

E-print Network

This paper suggests advertisers should experiment with in-game advertising to gain skills that could become vital in the near future. It compiles, arranges and analyzes the existing body of academic and industry knowledge ...

Vedrashko, Ilya

2006-01-01

401

The Fishing Game  

NSDL National Science Digital Library

This site features a simulation that places the student in the role of a wildlife manager who must use natural resources prudently. The site includes links to a user's guide, a fishing game simulator, and related reading material.

Exchange, The C.; Administration, Bonneville P.

402

A Game with Coins  

NSDL National Science Digital Library

This Java applet provides practice in adding denominations of US coins in the context of a simple turn-taking game of strategy. The game starts with pennies, nickels, dimes, and quarters arrayed in a row or loop. One person (or the computer) picks a coin on either end of the chain. Then the computer (or the second person) selects either the new "end" coin or the unchosen one from the previous round. Play proceeds in alternating fashion until no coins remain; the player who collects the greatest dollar amount wins. Click "random numbers" to play the same game with counting numbers in lieu of coins. A discussion of optimal strategies appears below the game.

Interactive Math Miscellany And Puzzles, Alexander B.

2011-01-01

403

The Atomic Dating Game.  

ERIC Educational Resources Information Center

Presents an activity designed to provide students with opportunities to practice drawing atomic models and discover the logical pairings of whole families on the periodic table. Follows the format of a television game show. (DDR)

Cummo, Evelyn; Matthews, Catherine E.

2002-01-01

404

Rethinking Fair Games  

ERIC Educational Resources Information Center

This article addresses misconceptions related to what makes an unfair game fair and describes from a personal perspective the process of discovering for oneself when a particular mathematical method works. (Contains 3 figures and 2 tables.)

Coffey, David C.; Richardson, Mary G.

2005-01-01

405

Game Over Gopher  

NSDL National Science Digital Library

This game (Java) requires students to use their knowledge of the coordinate plane to defend the carrot from the gophers. Students place carrot launcher, ruby drills, and garlic rays at strategic locations (ordered pairs) throughout the coordinate plane.

NMSU Learning Games Lab

2013-01-01

406

Antarctic Food Web Game  

NSDL National Science Digital Library

In this interactive game adapted from the Bigelow Laboratory for Ocean Sciences, build a food web that illustrates the flow of energy in an Antarctic ecosystem and the relationships between predators and prey.

Foundation, Wgbh E.

2007-08-09

407

The Integer Product Game  

NSDL National Science Digital Library

Each of two players alternately selects an integer to multiply by another given integer to color the cell of an answer that matches a product on the game board. The first student to fill four cells in a row wins.

Connected Mathematics Project 2006

2010-05-17

408

University of Illinois: Gaming Initiative  

NSDL National Science Digital Library

Video games have been the subject of scholarly inquiry for some time now, and disciplines such as psychology, speech communications, and information science continue to look into their use for a variety of purposes. The Gaming Initiative at the University of Illinois at Urbana-Champaign (UIUC) created this website to bring together actual video games, along with sponsoring campus-wide events, career resources, and other materials. Visitors can get started by reading through the "Gaming News" area, and looking through their current holdings. The sections of the site include "Gaming Research", "Gaming on Campus", and "Gaming Careers". The "Gaming Careers" section is quite useful, and it includes an extensive list of key trade and academic journals on game development and some inside advice from people in the industry.

2011-06-14

409

University of Illinois: Gaming Initiative  

NSDL National Science Digital Library

Video games have been the subject of scholarly inquiry for some time now, and disciplines such as psychology, speech communications, and information science continue to look into their use for a variety of purposes. The Gaming Initiative at the University of Illinois at Urbana-Champaign (UIUC) created this website to bring together actual video games, along with sponsoring campus-wide events, career resources, and other materials. Visitors can get started by reading through the "Gaming News" area, and looking through their current holdings. The sections of the site include "Gaming Research", "Gaming on Campus", and "Gaming Careers". The "Gaming Careers" section is quite useful, and it includes an extensive list of key trade and academic journals on game development and some inside advice from people in the industry.

410

Playing Games with Quantum Mechanics  

E-print Network

We present a perspective on quantum games that focuses on the physical aspects of the quantities that are used to implement a game. If a game is to be played, it has to be played with objects and actions that have some physical existence. We call such games playable. By focusing on the notion of playability for games we can more clearly see the distinction between classical and quantum games and tackle the thorny issue of what it means to quantize a game. The approach we take can more properly be thought of as gaming the quantum rather than quantizing a game and we find that in this perspective we can think of a complete quantum game, for a given set of preferences, as representing a single family of quantum games with many different playable versions. The versions of Quantum Prisoners Dilemma presented in the literature can therefore be thought of specific instances of the single family of Quantum Prisoner's Dilemma with respect to a particular measurement. The conditions for equilibrium are given for playable quantum games both in terms of expected outcomes and a geometric approach. We discuss how any quantum game can be simulated with a classical game played with classical coins as far as the strategy selections and expected outcomes are concerned.

Simon J. D. Phoenix; Faisal Shah Khan

2012-02-21

411

Introduction Game 1: Manufacturer -Stackelberg Leader  

E-print Network

Introduction Model Game 1: Manufacturer -Stackelberg Leader Game 2: Retailer -Stackelberg Leader Computer Modeling Conclusions Hierarchical Differential Games Ellina Grigorieva and Evgenii Khailov Denton, Arlington, TX Ellina Grigorieva and Evgenii Khailov Hierarchical Differential Games #12;Introduction Model

Grigorieva, Ellina V.

412

Signaling and Game Theory Pure Common Interest  

E-print Network

Signaling and Game Theory Pure Common Interest Partial Common Interest Game Theory.S. Zollman Signaling #12;Signaling and Game Theory Pure Common Interest Partial Common Interest Introduction Pure Common Interest Partial Common Interest Introduction Methodologies in game theory Signaling

Zollman, Kevin

413

25 CFR 502.10 - Gaming operation.  

Code of Federal Regulations, 2014 CFR

...2014-04-01 2014-04-01 false Gaming operation. 502.10 Section 502.10 Indians NATIONAL INDIAN GAMING COMMISSION, DEPARTMENT OF THE INTERIOR...DEFINITIONS OF THIS CHAPTER 502.10 Gaming operation. Gaming...

2014-04-01

414

25 CFR 502.10 - Gaming operation.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false Gaming operation. 502.10 Section 502.10 Indians NATIONAL INDIAN GAMING COMMISSION, DEPARTMENT OF THE INTERIOR...DEFINITIONS OF THIS CHAPTER 502.10 Gaming operation. Gaming...

2013-04-01

415

25 CFR 502.10 - Gaming operation.  

Code of Federal Regulations, 2011 CFR

...2011-04-01 2011-04-01 false Gaming operation. 502.10 Section 502.10 Indians NATIONAL INDIAN GAMING COMMISSION, DEPARTMENT OF THE INTERIOR...DEFINITIONS OF THIS CHAPTER 502.10 Gaming operation. Gaming...

2011-04-01

416

25 CFR 502.10 - Gaming operation.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 2010-04-01 false Gaming operation. 502.10 Section 502.10 Indians NATIONAL INDIAN GAMING COMMISSION, DEPARTMENT OF THE INTERIOR...DEFINITIONS OF THIS CHAPTER 502.10 Gaming operation. Gaming...

2010-04-01

417

25 CFR 502.10 - Gaming operation.  

Code of Federal Regulations, 2012 CFR

...2012-04-01 2012-04-01 false Gaming operation. 502.10 Section 502.10 Indians NATIONAL INDIAN GAMING COMMISSION, DEPARTMENT OF THE INTERIOR...DEFINITIONS OF THIS CHAPTER 502.10 Gaming operation. Gaming...

2012-04-01

418

Rescue Mission Game (Illuminations)  

NSDL National Science Digital Library

In this lesson plan students explore the four forces of flight in order to complete the "Rescue Mission". Students must use their knowledge of probability to choose the spinner that will help them win the game. Students must also use their knowledge of graphing points on a coordinate grid in order to plot the results of each spin. The game board and spinners are included (PDF).

2012-01-01

419

The Natural Selection Game  

NSDL National Science Digital Library

To prepare for the activity, students do background reading from Chapter 6 of Introduction to the Study of Dinosaurs, by Anthony J. Martin (Basic Concepts in Evolutionary Theory section). In class, the day before running the activity, introduce students briefly to the rules of the game and have them prepare their game pieces. A showing of Walking With Dinosaurs: Time of the Titans would also be helpful.

Mccarville, Katherine

420

Multichoice minority game  

SciTech Connect

The generalization of the problem of adaptive competition, known as the minority game, to the case of K possible choices for each player, is addressed, and applied to a system of interacting perceptrons with input and output units of a type of K-state Potts spins. An optimal solution of this minority game, as well as the dynamic evolution of the adaptive strategies of the players, are solved analytically for a general K and compared with numerical simulations.

Ein-Dor, Liat; Metzler, Richard; Kanter, Ido; Kinzel, Wolfgang

2001-06-01

421

Find a Fuel Game  

NSDL National Science Digital Library

An educational game where students choose vehicles with different propulsion systems and learn about the differences between these systems. To progress in the game, students must capture the fuel type for the propulsion system of the vehicle they chose. Propulsion systems and fuel types include the internal combustion engine (gasoline),  flex-fuel ethanol (E85), hybrid electric (gasoline and electricity), and plug-in hybrid electric (electricty or both gasoline and electricity).

Motors, General

422

Winning the Service Game  

Microsoft Academic Search

\\u000a The chapter presents a summary and extension of our book, Winning the Service Game, published in 1995 by Harvard Business School Press (Schneider\\u000a \\u000a & Bowen\\u000a \\u000a , 1995). We summarize the rules of the game we had presented there concerning the production and delivery primarily of consumer\\u000a services and note several advances in thinking since we wrote the book. We emphasize

Benjamin Schneider; David E. Bowen

423

Quantum Game of Life  

E-print Network

We introduce a quantum version of the Game of Life and we use it to study the emergence of complexity in a quantum world. We show that the quantum evolution displays signatures of complex behaviour similar to the classical one, however a regime exists, where the quantum Game of Life creates more complexity, in terms of diversity, with respect to the corresponding classical reversible one.

D. Bleh; T. Calarco; S. Montangero

2012-01-23

424

Cell Vocabulary Review Game  

NSDL National Science Digital Library

This game helps students to enjoy reviewing vocabulary related to cells, organelles, and the plasma membrane. Each card in the deck has a target vocabulary word and two related taboo words that the student may not use when giving clues so the other students in his or her small group can guess the target word. Many students have trouble learning the substantial new vocabulary required for biology, and this game lets students have fun while reinforcing their understanding of key terms.

Doherty, Jennifer; Waldron, Ingrid

425

Genetics Vocabulary Review Game  

NSDL National Science Digital Library

This game helps students to enjoy reviewing genetics vocabulary. Each card in the deck has a target vocabulary word and two related taboo words that the student may not use when giving clues so the other students in his or her small group can guess the target word. Many students have trouble learning the substantial new vocabulary required for biology, and this game lets students have fun while reinforcing their understanding of key terms.

Doherty, Jennifer; Waldron, Ingrid

426

Why Play Logical Games?  

Microsoft Academic Search

Game semantics has almost achieved the status of a paradigm in computer science but philosophers are slow to take notice.\\u000a One reason for this might be the lack of a convincing philosophical account of logical games, what it means to play them,\\u000a for the proponent to win, etc., pointedly raised by Wilfrid Hodges as the Dawkins question. In this paper,

Mathieu Marion

427

Terrorism & Game Theory  

Microsoft Academic Search

Abstract This article examines,how game- theoretic analyses of terrorism have provided some policy insights that do not follow from nonstrategic analyses. Some new game-theoretic applications are indicated that concern terrorist targeting of businesses, officials, and the general public, where targets can work at cross-purposes as th ey attempt to deflect the attack. Other novel applications involve government choice among alternative

Todd Sandler

2003-01-01

428

Replica exchange with nonequilibrium switches: Enhancing equilibrium sampling by increasing replica overlap  

NASA Astrophysics Data System (ADS)

We describe a replica exchange strategy where trial swap configurations are generated by nonequilibrium switching simulations. By devoting simulation time to the switching simulations, one can systematically increase an effective overlap between replicas, which leads to an increased exchange acceptance rate and less correlated equilibrium samples. In this paper, we derive our method for a general class of stochastic dynamics, and discuss various strategies for enhancing replica overlap through novel dynamical schemes and prudent choices of switching protocols. We then demonstrate our method on a model system of alanine dipeptide in implicit solvent, characterizing decreases in data correlations and gains in sampling efficiency.

Ballard, Andrew J.; Jarzynski, Christopher

2012-05-01

429

Let the Game do the Talking: The influence of explicitness and game behavior on comprehension in an educational computer game  

E-print Network

Let the Game do the Talking: The influence of explicitness and game behavior on comprehension in an educational computer game Erwin Bergervoet, Frans van der Sluis, Betsy van Dijk, Anton Nijholt Human Media--An endogenous educational game is a game where the educational content is integrated in the game play mechanics

Nijholt, Anton

430

Internet gaming addiction: current perspectives  

PubMed Central

In the 2000s, online games became popular, while studies of Internet gaming addiction emerged, outlining the negative consequences of excessive gaming, its prevalence, and associated risk factors. The establishment of specialized treatment centers in South-East Asia, the US, and Europe reflects the growing need for professional help. It is argued that only by understanding the appeal of Internet gaming, its context, and neurobiologic correlates can the phenomenon of Internet gaming addiction be understood comprehensively. The aim of this review is to provide an insight into current perspectives on Internet gaming addiction using a holistic approach, taking into consideration the mass appeal of online games, the context of Internet gaming addiction, and associated neuroimaging findings, as well as the current diagnostic framework adopted by the American Psychiatric Association. The cited research indicates that the individuals context is a significant factor that marks the dividing line between excessive gaming and gaming addiction, and the game context can gain particular importance for players, depending on their life situation and gaming preferences. Moreover, the cultural context is significant because it embeds the gamer in a community with shared beliefs and practices, endowing their gaming with particular meaning. The cited neuroimaging studies indicate that Internet gaming addiction shares similarities with other addictions, including substance dependence, at the molecular, neurocircuitry, and behavioral levels. The findings provide support for the current perspective of understanding Internet gaming addiction from a disease framework. The benefits of an Internet gaming addiction diagnosis include reliability across research, destigmatization of individuals, development of efficacious treatments, and the creation of an incentive for public health care and insurance providers. The holistic approach adopted here not only highlights empirical research that evidences neurobiologic correlates of Internet gaming addiction and the establishment of a preliminary diagnosis, but also emphasizes the necessity of an indepth understanding of the meaning, context, and practices associated with gaming. PMID:24255603

Kuss, Daria J

2013-01-01

431

Equilibrium games in networks  

NASA Astrophysics Data System (ADS)

It seems a universal phenomenon of networks that the attacks on a small number of nodes by an adversary player Alice may generate a global cascading failure of the networks. It has been shown(Li etal., 2013) that classic scale-free networks (Barabsi and Albert, 1999, Barabsi, 2009) are insecure against attacks of as small as O(logn) many nodes. This poses a natural and fundamental question: Can we introduce a second player Bob to prevent Alice from global cascading failure of the networks? We proposed a game in networks. We say that a network has an equilibrium game if the second player Bob has a strategy to balance the cascading influence of attacks by the adversary player Alice. It was shown that networks of the preferential attachment model (Barabsi and Albert, 1999) fail to have equilibrium games, that random graphs of the Erds-Rnyi model (Erds and Rnyi, 1959, Erds and Rnyi, 1960) have, for which randomness is the mechanism, and that homophyly networks (Li etal., 2013) have equilibrium games, for which homophyly and preferential attachment are the underlying mechanisms. We found that some real networks have equilibrium games, but most real networks fail to have. We anticipate that our results lead to an interesting new direction of network theory, that is, equilibrium games in networks.

Li, Angsheng; Zhang, Xiaohui; Pan, Yicheng; Peng, Pan

2014-12-01

432

Utilizing Video Games  

NASA Astrophysics Data System (ADS)

Almost from its birth, the computer and video gaming industry has done an admirable job of communicating the vision and attempting to convey the experience of traveling through space to millions of gamers from all cultures and demographics. This paper will propose several approaches the 100 Year Starship Study can take to use the power of interactive media to stir interest in the Starship and related projects among a global population. It will examine successful gaming franchises from the past that are relevant to the mission and consider ways in which the Starship Study could cooperate with game development studios to bring the Starship vision to those franchises and thereby to the public. The paper will examine ways in which video games can be used to crowd-source research aspects for the Study, and how video games are already considering many of the same topics that will be examined by this Study. Finally, the paper will propose some mechanisms by which the 100 Year Starship Study can establish very close ties with the gaming industry and foster cooperation in pursuit of the Study's goals.

Blaize, L.

433

Quantum Stochastic Processes  

SciTech Connect

We consider quantum analogues of n-parameter stochastic processes, associated integrals and martingale properties extending classical results obtained in [1, 2, 3], and quantum results in [4, 5, 6, 7, 8, 9, 10].

Spring, William Joseph [Quantum Information and Probability Group, School of Computer Science, University of Hertfordshire, Hatfield, Herts AL10 9AB (United Kingdom)

2009-04-13

434

Stochastic Mechanisms in Gene Expression  

NASA Astrophysics Data System (ADS)

In cellular regulatory networks, genetic activity is controlled by molecular signals that determine when and how often a given gene is transcribed. In genetically controlled pathways, the protein product encoded by one gene often regulates expression of other genes. The time delay, after activation of the first promoter, to reach an effective level to control the next promoter depends on the rate of protein accumulation. We have analyzed the chemical reactions controlling transcript initiation and translation termination in a single such ``genetically coupled'' link as a precursor to modeling networks constructed from many such links. Simulation of the processes of gene expression shows that proteins are produced from an activated promoter in short bursts of variable numbers of proteins that occur at random time intervals. As a result, there can be large differences in the time between successive events in regulatory cascades across a cell population. In addition, the random pattern of expression of competitive effectors can produce probabilistic outcomes in switching mechanisms that select between alternative regulatory paths. The result can be a partitioning of the cell population into different phenotypes as the cells follow different paths. There are numerous unexplained examples of phenotypic variations in isogenic populations of both prokaryotic and eukaryotic cells that may be the result of these stochastic gene expression mechanisms.

McAdams, Harley H.; Arkin, Adam

1997-02-01

435

Plasmonic enhanced ultrafast switch.  

SciTech Connect

Ultrafast electronic switches fabricated from defective material have been used for several decades in order to produce picosecond electrical transients and TeraHertz radiation. Due to the ultrashort recombination time in the photoconductor materials used, these switches are inefficient and are ultimately limited by the amount of optical power that can be applied to the switch before self-destruction. The goal of this work is to create ultrafast (sub-picosecond response) photoconductive switches on GaAs that are enhanced through plasmonic coupling structures. Here, the plasmonic coupler primarily plays the role of being a radiation condenser which will cause carriers to be generated adjacent to metallic electrodes where they can more efficiently be collected.

Subramania,Ganapathi Subramanian; Reno, John Louis; Passmore, Brandon Scott; Harris, Tom.; Shaner, Eric Arthur; Barrick, Todd A.

2009-09-01

436

Basics of Safety Switches  

NSDL National Science Digital Library

This course is one of the quickStep series offered by Siemens in Safety Switches. These are FREE on-line industrial knowledge building tutorials. quickSTEPs are a great start for industry novices moving into technical jobs or staff in operational support rolls. They can also be very effectively used as out of class assignments for review or to build fundamental skills. Each course includes: an online tutorial organized as a number of units, lessons with self check quiz questions, a glossary of terms, a self-check final exam with scoring, an extensive downloadable PDF study guide. This course offers: current protection, fuses, enclosures, switch design, switch terminology, safety switches, a final exam, a glossary and a 72 page study guide.

437

An optical switch  

DOEpatents

The invention is a gas mixture for a diffuse discharge switch having an electron attaching gas wherein electron attachment is brought about by indirect excitation of molecules to long live states by exposure to laser light. 3 figs.

Christophorou, L.G.; Hunter, S.R.

1987-04-30

438

uv preilluminated gas switches  

Microsoft Academic Search

We have designed, built, and characterized uv preilluminated gas switches for a trigger circuit and a low inductance discharge circuit. These switches have been incorporated into a 54 x 76 x 150 cm pulser module to produce a 1 Ma output current rising at 5 x 10¹² amps\\/sec with 1 ns jitter. Twenty such modules will be used on the

L. P. Bradley; E. L. Orham; I. F. Stowers; J. R. Braucht

1980-01-01

439

Cygnus Water Switch Jitter  

SciTech Connect

The Cygnus Dual Beam Radiographic Facility consists of two identical radiographic sources - Cygnus 1 and Cygnus 2. Each source has the following x-ray output: 1-mm diameter spot size, 4 rad at 1 m, 50-ns Full Width Half Max. The diode pulse has the following electrical specifications: 2.25 MV, 60 kA, 60 ns. This Radiographic Facility is located in an underground tunnel test area at the Nevada Test Site (NTS). The sources were developed to produce high-resolution images on subcritical tests which are performed at NTS. Subcritical tests are single-shot, high-value events. For this application, it is desirable to maintain a high level of reproducibility in source output. The major components of the Cygnus machines are: Marx generator, water-filled pulseforming line (PFL), water-filled coaxial transmission line, three-cell inductive voltage adder, and rod-pinch diode. A primary source of fluctuation in Cygnus shot-to-shot performance is jitter in breakdown of the main PFL switch, which is a self-break switch. The PFL switch breakdown time determines the peak PFL charging voltage, which ultimately affects the diode pulse. Therefore, PFL switch jitter contributes to shot-to-shot variation in source endpoint energy and dose. In this paper we will present PFL switch jitter analysis for both Cygnus machines and give the correlation with diode performance. For this analysis the PFL switch on each machine was maintained at a single gap setting which has been used for the majority of shots at NTS. In addition to this analysis, PFL switch performance for different switch gap settings taken recently will be examined. Lastly, implications of source jitter for radiographic diagnosis of subcritical shots will be discussed.

Charles V. Mitton, George D. Corrow, Mark D. Hansen, David J. Henderson, et al.

2008-03-01

440

Learning Games for Active Student Responding.  

ERIC Educational Resources Information Center

Instructional games can be used effectively when they require active student participation and high rates of student responding. The article describes principles of such games and suggests ways to turn typical games (such as "Bingo,""War,""Scrabble,""Boggle," paper/pencil games, and question/answer games) into active, high-response games. (JDD)

Wesson, Caren; And Others

1988-01-01

441

Application and Evaluation of Analytic Gaming  

SciTech Connect

We describe an "analytic gaming" framework and methodology, and introduce formal methods for evaluation of the analytic gaming process. This process involves conception, development, and playing of games that are informed by predictive models and driven by players. Evaluation of analytic gaming examines both the process of game development and the results of game play exercises.

Riensche, Roderick M.; Martucci, Louis M.; Scholtz, Jean; Whiting, Mark A.

2009-08-31

442

Game theory and modal logic Alexandru Baltag  

E-print Network

Game theory and modal logic Alexandru Baltag CWI P.O. Box 94079, 1090 GB Amsterdam, The Netherlands logic, games and (co)algebra, stressing especially the modal logic aspects of important game­ theoretic concepts. There are two main possible ways of relating logic and games: logic games and game logics

Jipsen, Peter

443

Multipotential Games This version contains all proofs  

E-print Network

Multipotential Games This version contains all proofs Dov Monderer Faculty of Industrial@ie.technion.ac.il Abstract We introduce and analyze q-potential games and q- congestion games, where q is a positive integer. A 1-potential (congestion) game is a potential (con- gestion) game. We show that a game is a q

Monderer, Dov

444

IT education, girls and game modding  

Microsoft Academic Search

Researchers have argued that video games have great utility for learning. Games promote experiential learning and can be used to facilitate active learning. This paper examines the potential of video games in education. In particular, it examines the benefits of game modding compared to playing and\\/or creating games. However, video game classes have been primarily attended by male students. This

Ibrahim Yucel; Joseph Zupko; Magy Seif El-Nasr

2006-01-01

445

Automatically Generating Game Tactics via Evolutionary Learning  

E-print Network

Automatically Generating Game Tactics via Evolutionary Learning Marc Ponsen H´ector Mu-controlled opponents in video games is called game AI. Adaptive game AI can improve the entertainment value of games to changes in human-player tactics. Dynamic scripting is a reinforcement learning approach to adap- tive game

Spronck, Pieter

446

The Educational Potential of Modified Video Games  

Microsoft Academic Search

As the popularity of video game playing has increased, educators have sought to co-opt video games as an instructional tool. However, educational games have made little impact in either the commercial market place or the average game player's home library. The modification, or modding, of video games using in-game editors may be used by instructors to introduce educational content to

Andrew Moshirnia

2007-01-01

447

Meta-Games in Information Work  

ERIC Educational Resources Information Center

Introduction: Meta-games and meta-gaming refer to various second-order conceptions of games and gaming. The present article discusses the applicability of the notions of meta-game and meta-gaming in understanding the patterns of how people use, misuse, work and work-around information and information infrastructures. Method: Twenty-two qualitative

Huvila, Isto

2013-01-01

448

Developing game worlds : gaming, technology, and innovation in Peru  

E-print Network

In this work, I've documented the origins, growth and structure of the Peruvian video game industry. Because of its underground origins, the Peruvian game industry provides an alternative, more organic gateway to developing ...

Marisca Alvarez, Eduardo

2014-01-01

449

Interpreting abstract games : the metaphorical potential of formal game elements  

E-print Network

As cultural artifacts, abstract games offer unique challenges to critical interpretation. This is largely due to the fact that such games lack a fictional element: there are no characters, no settings, and no narratives ...

Begy, Jason Scott

2010-01-01

450

Flows and Decompositions of Games: Harmonic and Potential Games  

E-print Network

In this paper we introduce a novel flow representation for finite games in strategic form. This representation allows us to develop a canonical direct sum decomposition of an arbitrary game into three components, which we ...

Candogan, Utku Ozan

451

ID201202961, DOE S-124,539, Information Security Analysis Using Game Theory and Simulation  

SciTech Connect

Information security analysis can be performed using game theory implemented in dynamic simulations of Agent Based Models (ABMs). Such simulations can be verified with the results from game theory analysis and further used to explore larger scale, real world scenarios involving multiple attackers, defenders, and information assets. Our approach addresses imperfect information and scalability that allows us to also address previous limitations of current stochastic game models. Such models only consider perfect information assuming that the defender is always able to detect attacks; assuming that the state transition probabilities are fixed before the game assuming that the players actions are always synchronous; and that most models are not scalable with the size and complexity of systems under consideration. Our use of ABMs yields results of selected experiments that demonstrate our proposed approach and provides a quantitative measure for realistic information systems and their related security scenarios.

Abercrombie, Robert K [ORNL; Schlicher, Bob G [ORNL

2012-01-01

452

A radiation hard vacuum switch  

DOEpatents

A vacuum switch with an isolated trigger probe which is not directly connected to the switching electrodes. The vacuum switch within the plasmatron is triggered by plasma expansion initiated by the trigger probe which travels through an opening to reach the vacuum switch elements. The plasma arc created is directed by the opening to the space between the anode and cathode of the vacuum switch to cause conduction. 3 figs.

Boettcher, G.E.

1988-07-19

453

Playing Games with Algorithms: Algorithmic Combinatorial Game Theory  

Microsoft Academic Search

Combinatorial games lead to several interesting, clean problems in algorithms and complexity theory, many of which remain open. The purpose of this paper is to provide an overview of the area to encourage further research. In particular, we begin with general background in Combinatorial Game Theory, which analyzes ideal play in perfect-information games, and Constraint Logic, which provides a framework

Erik D. Demaine; Ontario N

2001-01-01

454

Differential Game Logic for Hybrid Games Andre Platzer  

E-print Network

systems. In this paper, we consider multi-agent hybrid systems, where two agents act and we are uncer a hybrid game, i.e., a game of two agents on a hybrid system [TPS98, TLS00, VPVD11]. Hybrid systems also the nondeterminism. In hybrid games, instead, two play- ers have the opportunity to resolve nondeterministic choices

455

ALTEC Learning Games: Successful Integration of Learning and Gaming  

ERIC Educational Resources Information Center

Of the 53 million K-12 students in the United States, 93%, or 51 million, of them play video games (Etuk, 2008). ALTEC Learning Games utilize the excitement of video games to engage students and provide teachers authentic online resources that reinforce skills in math and language arts. Our recent work was partially supported by a partnership with

Bacon, Melanie A.; Ault, Marilyn M.

2009-01-01

456

Stochastic Processes and their Applications 120 (2010) 403426 www.elsevier.com/locate/spa  

E-print Network

.elsevier.com/locate/spa Switching problem and related system of reflected backward SDEs$ Said Hamad`enea, Jianfeng Zhangb.: +1 213 740 9805; fax: +1 213 740 2424. E-mail addresses: hamadene@univ-lemans.fr (S. Hamad:10.1016/j.spa.2010.01.003 #12;404 S. Hamad`ene, J. Zhang / Stochastic Processes

Zhang, Jianfeng

457

On solutions of Bayesian games  

Microsoft Academic Search

The theory of Bayesian games, as developped by W. Bge, is axiomatically treated. A direct access to the system of complete reflections is shown. Solutions for these games are defined and characterizations for their existence are given.

W. Bge; Th. Eisele

1979-01-01

458

Get the Lead Out! Game  

NSDL National Science Digital Library

This board game reinforces learning about the sources and biological hazards of lead exposure. The first file has the game and the second file has teacher notes, including background information on lead.

Freire, Edison; Waldron, Ingrid

459

The Black Hole Explorer Game  

NSDL National Science Digital Library

This board game lets players build a spaceship and fly to a black hole. The game provides many opportunities for understanding phenomena based on current black hole research. During the game, the player will experience the dangers and excitement of a real space mission, and learn about the nature of black holes by launching scientific probes. The game can be played competitively or as a team. Game components are available as PDF downloads; dice and game pieces must be provided by the user. Black Hole Explorer consists of: Game Board, Game Rules, Spacecraft Data sheets, Science Briefing Room document, Event cards (28), Probe result cards (12), Energy tokens (140). NOTE: tokens and cards need to be cut to size from letter-size cardstock.

Simon Steel

2006-12-01

460

Energy losses in switches  

SciTech Connect

The authors experiments show energy losses between 2 and 10 times that of the resistive time predictions. The experiments used hydrogen, helium, air, nitrogen, SF{sub 6} polyethylene, and water for the switching dielectric. Previously underestimated switch losses have caused over predicting the accelerator outputs. Accurate estimation of these losses is now necessary for new high-efficiency pulsed power devices where the switching losses constitute the major portion of the total energy loss. They found that the switch energy losses scale as (V{sub peak}I{sub peak}){sup 1.1846}. When using this scaling, the energy losses in any of the tested dielectrics are almost the same. This relationship is valid for several orders of magnitude and suggested a theoretical basis for these results. Currents up to .65 MA, with voltages to 3 MV were applied to various gaps during these experiments. The authors data and the developed theory indicates that the switch power loss continues for a much longer time than the resistive time, with peak power loss generally occurring at peak current in a ranging discharge instead of the early current time. All of the experiments were circuit code modeled after developing a new switch loss version based on the theory. The circuit code predicts switch energy loss and peak currents as a function of time. During analysis of the data they noticed slight constant offsets between the theory and data that depended on the dielectric. They modified the plasma conductivity for each tested dielectric to lessen this offset.

Martin, T.H.; Seamen, J.F.; Jobe, D.O.

1993-07-01

461

Using Games in the Classroom  

NSDL National Science Digital Library

The author of this one-page article describes the pedagogical benefits of using math games in the classroom. She analyzes the game context in terms of the kinds of learning that takes place, the behaviors that students exhibit, and the social-emotional experience of students. She concludes by recommending strategies for effective introduction and management of games. [While the author's observations were in the context of geometry games, they generalize to most topics.

Hatch, Gillian

2005-09-01

462

Number Sense Games and Activities  

NSDL National Science Digital Library

Students will select online games related to number sense and play them individually or with a partner Odd or Even Can you tell the difference between odd or even? Choose one of these games for some practice! Don\\'t be afraid. The ghosts in this game only haunt those who don\\'t know odd or even numbers. Surely that\\'s not YOU! Even Ghostblasters Odd Ghostblasters Odd/Even Building Game Counting Patterns I know you can count ...

Mrs. Barker

2005-10-18

463

Asymptotic and numerical methods for metastable events in stochastic gene networks  

E-print Network

A general class of stochastic gene expression models with self regulation is considered. One or more genes randomly switch between regulatory states, each having a different mRNA transcription rate. The gene or genes are self regulating when the proteins they produce affect the rate of switching between regulatory states. Under weak noise conditions, the deterministic forces are much stronger than fluctuations from gene switching and protein synthesis. Metastable transitions, such as bistable switching, can occur under weak noise conditions, causing dramatic shifts in the expression of a gene. A general tool used to describe metastability is the quasi stationary analysis (QSA). A large deviation principle is derived so that the QSA can explicitly account for random gene switching without using an adiabatic limit or diffusion approximation, which are unreliable and inaccurate for metastable events.This allows the existing asymptotic and numerical methods that have been developed for continuous Markov processes to be used to analyze the full model.

Jay Newby

2014-12-29

464

Recreational Games for Physical Education  

ERIC Educational Resources Information Center

Recreational games can be incorporated into physical education programs to encourage play and activity among students during their leisure time. Students can play their own games during recess, before or after school, during intramural programs, or in their neighborhood with family and friends. This article describes five such games namely:

Hume, Donald

2005-01-01

465

Hamiltotian Formalism of Game Theory  

E-print Network

A new representation of Game Theory is developed in this paper. State of players is represented by a density matrix, and payoff function is a set of hermitian operators, which when applied onto the density matrix give the payoff of players. By this formulism, a new way to find the equilibria of games is given by generalizing the thermodynamical evolutionary process leading to equilibrium in Statistical Mechanics. And in this formulism, when quantum objects instead of classical objects are used as the objects in the game, it's naturally leads to the so-called Quantum Game Theory, but with a slight difference in the definition of strategy state of players: the probability distribution is replaced with a density matrix. Further more, both games of correlated and independent players can be reached in this single framework, while traditionally, they are treated separately by Non-cooperative Game Theory and Coalitional Game Theory. Because of the density matrix is used as state of players, besides classical correlated strategy, quantum entangled states can also be used as strategies, which is an entanglement of strategies between players, and it is different with the entanglement of objects' states as in the so-called Quantum Game Theory. At last, in the form of density matrix, a class of quantum games, where the payoff matrixes are commutative, can be reduced into classical games. In this sense, it will put the classical game as a special case of our quantum game.

Jinshan Wu

2005-04-12

466

Applied Game Theory Syllabus Instructors  

E-print Network

Applied Game Theory Syllabus Instructors Aditya K. Jagannatham Electrical Engineering IIT Kanpur Vimal Kumar Economics, Humanities and Social Sciences IIT Kanpur Title APPLIED GAME THEORY Course Website http://home.iitk.ac.in/~adityaj/EE698A_2012/ Objectives Game theory is a branch of Mathematical

Jagannatham, Aditya K.

467

PALM GAME DESIGN Pieter Spronck  

E-print Network

PALM GAME DESIGN Pieter Spronck Universiteit Maastricht IKAT/Infonomics P.O. Box 616 NL-6200 MD Maastricht, The Netherlands E-mail: p.spronck@cs.unimaas.nl KEYWORDS Gaming, handheld computers, software engineering, design. ABSTRACT Though the Palm is mainly a business tool, many games have been developed

Spronck, Pieter

468

Computerized History Games: Narrative Options  

ERIC Educational Resources Information Center

How may historians best express history through computer games? This article suggests that the answer lies in correctly correlating historians' goals for teaching with the capabilities of different kinds of computer games. During the development of a game prototype for high school students, the author followed best practices as expressed in the

Kee, Kevin

2011-01-01

469

Game Coloring the Cartesian Product  

E-print Network

Game Coloring the Cartesian Product of Graphs Xuding Zhu1,2 1DEPARTMENT OF APPLIED MATHEMATICS to each vertex a set of n degree 1 neighbors. If G has game coloring number m and G has acyclic chromatic number k, then the Cartesian product G G has game chromatic number at most k(k+m - 1). As a consequence

Zhu, Xuding

470

Girls, computer science, and games  

Microsoft Academic Search

An innovative week long mini-course for girls has successfully used video game development as the main motivation by teaching related computer science topics at the same time. Students split their time between creating their own game in the lab and learning about game design, usability, graphics, and artificial intelligence. They became more comfortable with the subject and say they are

Gail Carmichael

2008-01-01

471

Video Games and Digital Literacies  

ERIC Educational Resources Information Center

Today's youth are situated in a complex information ecology that includes video games and print texts. At the basic level, video game play itself is a form of digital literacy practice. If we widen our focus from the "individual player + technology" to the online communities that play them, we find that video games also lie at the nexus of a

Steinkuehler, Constance

2010-01-01

472

Science Sampler: Games that teach  

NSDL National Science Digital Library

Teachers spend a great deal of time trying to capture student interest because motivation is the beginning of learning. One effective way to do this is through the use of games in the classroom. Games can be used to introduce various presentation formats, improve comprehension through simulations, or review concepts. General suggestions for incorporating various types of games into lesson plans are provided.

Sharon Brendzel

2004-05-01

473

Games, the Socialization of Conflict.  

ERIC Educational Resources Information Center

The function of games in a society is discussed in this paper. An earlier definition of games as a concretistic way of processing information of cultural antitheses is enlarged to include a more bio-adaptive definition: the game is also a socialization of conflict. This view is compared and contrasted with those of Sigmund Freud and G. H. Mead.

Sutton-Smith, Brian

474

75 FR 38834 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...the compact is four years calculated from the date of commencement of gaming. The compact permits the Tribe to offer the full gamut of casino-style gaming authorized by the Nevada Gaming Commission and/or lawfully permitted to be played by the...

2010-07-06

475

Simulation Games in Architectural Education.  

ERIC Educational Resources Information Center

Playing simulation games is seen as having obvious educational value with players learning through personal involvement. Several games are described, including Communication Networks, Heating and Air-Conditioning (HAC), Construction Management Game, Semiotics, Awards, Blocks, Would You Like to Be an Architect?, POLIGRIP, and PASS. (MLW)

Bonta, Juan Pablo

1979-01-01

476

Sexuality Education in Video Games  

Microsoft Academic Search

This article provides a review of some of the currently available literature surrounding the academic study of video games. Many of these theoretical methods have been used to study film and television and are discussed here in order to frame the need for further examination of video games. Suggestions for the use of video games in the classroom and suggestions

M. Scott Gross

2005-01-01

477

"Voyager": An Educational Card Game  

ERIC Educational Resources Information Center

"Voyager" is an educational card game involving scientific satellites, developed for use in schools with children aged 9 to 13 years. The idea of the game is to improve pupils' knowledge about the large number of scientific satellites there are in space in a fun way, while also practising numeracy skills. Several copies of the game were produced

Smith, David Ryan

2003-01-01

478

Violent video games and forgiveness  

Microsoft Academic Search

The effect of playing a violent video game on forgiveness was investigated. A transgression context was created in an experimental setting and video game violence was manipulated in two levels (violence or no violence). Subsequent measures of empathy, hostility, and forgiveness were made. No evidence was found of an effect of video game violence on forgiveness or hostility. Empathy was

William Stone Iii

2010-01-01

479

Violent video games and aggression  

Microsoft Academic Search

One of the main concerns that has constantly been raised against video games is that most of the games feature aggressive elements. This has led many people to assert that this may have a detrimental effect on individuals who play such games. Despite continuing controversy for over 15 years, there has been little in the way of systematic research. This

Mark Griffiths

1999-01-01

480

Alliances in "The Hunger Games"  

ERIC Educational Resources Information Center

This lesson plan is based on "The Hunger Games" by Suzanne Collins. Characters in "The Hunger Games" form alliances both inside and outside the arena. Katniss and Gale form alliances within District 12. Katniss, Peeta, and the other tributes form alliances for a variety of reasons during the Games. An alliance means that "someone's got your back"

Painter, Judith

2012-01-01

481

Interactive aesthetics: culture and games  

Microsoft Academic Search

Rhythm Action Games [RAG] are designed specially for musical and physical interaction. The experience of the RAG genre encourages each player have the ability to participate the virtual world in the game. No matter whether in RAG games or the KTV experience, we all share the human desire to extend our powers and, by coping with and adapting to the

Tsen Wang

2007-01-01

482

Games Room The Rules Bookings  

E-print Network

Games Room ­ The Rules Bookings: o Your bookings are limited to 2 hours per group per day. o If you join a game session that has been fines. o Game sessions start and end at the times booked; they cannot

Thompson, Michael

483

New models of quantum games  

E-print Network

In this work we propose and develop modified quantum games (zero and non-zero sum) in which payoffs and strategies are entangled. For the games studied, Nash and Pareto equilibriums are always obtained indicating that there are some interesting cases where quantum games can be applied.

Paulo Benicio Melo de Sousa; Rubens Viana Ramos; Jose Tarcisio Costa filho

2006-08-17

484

Gaming and Gamification Part II  

ERIC Educational Resources Information Center

Just as academic gaming in general cannot be limited to any one topic or genre, the "Public Services Quarterly" Internet Resources column is not limited to a single entry on gaming and gamification in libraries. Public services librarians interested in designing their own games have many successful examples to draw from. The previous

Mallon, Melissa

2013-01-01

485

Gaming Research for Technology Education  

ERIC Educational Resources Information Center

This study assesses the use of gaming to teach Science, Technology, Engineering, and Mathematics (STEM) in public education. The intent of the investigation was to identify attitudes about gaming and its use in education, as well as the need to utilize gaming as a platform to serve as an integrator of STEM subject matter. Participants included

Clark, Aaron C.; Ernst, Jeremy

2009-01-01

486

Gaming Frequency and Academic Performance  

ERIC Educational Resources Information Center

There are numerous claims that playing computer and video games may be educationally beneficial, but there has been little formal investigation into whether or not the frequency of exposure to such games actually affects academic performance. This paper explores the issue by analysing the relationships between gaming frequency--measured as the

Ip, Barry; Jacobs, Gabriel; Watkins, Alan

2008-01-01

487

78 FR 26801 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...Affairs [DR.5B711.IA000813] Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact...amendment to the Class III Tribal-State Gaming Compact between the Menominee Indian...

2013-05-08

488

75 FR 68618 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Tribe'') and the State of Wisconsin Gaming Compact of 1991, as Amended in 1999 and...L. Hart, Director, Office of Indian Gaming, Office of the Deputy Assistant...

2010-11-08

489

78 FR 54908 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...Affairs [DR.5B711.IA000813] Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of approved Tribal-State Class III Gaming Compact...approval of the Class III Tribal- State Gaming Compact between the Wiyot Tribe and...

2013-09-06

490

COOPERATIVE GAMES ON COMBINATORIAL STRUCTURES  

E-print Network

COOPERATIVE GAMES ON COMBINATORIAL STRUCTURES JES?S MARIO BILBAO University of Seville Spain KLUWER ACADEMIC PUBLISHERS #12;Contents Preface ix 1 Structures 1 1.1 Cooperative games of cooperative games . . . . . . . . . . . . . . . . . . 10 1.4 Closure spaces and convex geometries

Bilbao Arrese, Jesús Mario

491

78 FR 62649 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...Affairs [DR.5B711.IA000813] Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...ACTION: Notice of Tribal-State Class III Gaming Compact taking effect...This notice publishes the Class III Gaming Compact between the North Fork...

2013-10-22

492

77 FR 76514 - Indian Gaming  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR Bureau of Indian Affairs Indian Gaming AGENCY: Bureau of Indian Affairs, Interior...Notice of Approved Tribal-State Class III Gaming Compact taking effect...Tribal-State Compact for Regulation of Class III Gaming between the Confederated Tribes of...

2012-12-28

493

Stochastic nonlinear stabilization  

NASA Astrophysics Data System (ADS)

The fact that many physical systems are nonlinear and subject to disturbances motivates the study of stochastic nonlinear control, with stabilization as the most basic question. Because of a fundamental technical difficulty in the Lyapunov analysis, research attention since the 1960's has been moved from stabilization to optimization. The development of differential geometric nonlinear control theory in the 1980's and a recent discovery of a simple constructive formula for Lyapunov stabilization for deterministic nonlinear systems has inspired a large amount of research in adaptive, robust, and optimal nonlinear control. These achievements naturally led to re-examining the stochastic nonlinear stabilization problem, which is the topic of this dissertation. In this dissertation, we first introduce a new set of stability definitions in class K formalism, in order to connect the results in stochastic nonlinear control with the results in modern deterministic nonlinear control literature, and to introduce the new concept of Noise-to-State Lyapunov function. Then we rigorously prove a stochastic version of the convergence result of LaSalle and Yoshizawa. When we consider systems with unknown noise covariance, we extend Sontag's concept of input-to-state stability (ISS) to stochastic systems by introducing the concept Noise-to-State Lyapunov functions (ns-lf). For systems with a control input as well as stochastic noise (affine in both), we extend the ISS-control Lyapunov functions to stochastic systems, introduce ns-control Lyapunov functions (ns-clf), and prove that there exists a feedback law continuous away from the origin that guarantees the controlled system has an ns-lf if there exists an ns-clf. After addressing the stabilization issue, we pursue inverse optimality since direct optimal control problem involves a formidable computational task---solving HJB PDE. We show that if we know an ns-clf, then the inverse optimal control problem is solvable for general stochastic systems affine in control. Based on these theorems, we proceed with controller design for the stochastic strict-feedback systems---both state-feedback and output-feedback. Using back-stepping design method, we design closed form stabilizing and inverse optimal controllers when the noise has unity intensity. For the system with unknown covariance noise, we develop adaptive stabilization and disturbance attenuation schemes without a priori knowledge of a bound on the covariance.

Deng, Hua

494

Optical Packet Switching  

NASA Astrophysics Data System (ADS)

This chapter provides an outline of the main concepts and issues related to optical packet switching (OPS). The basic network functions required by this paradigm are discussed and references to past and current research on the topic are provided. Optical packet switching is a transport technique that assumes information to be organized in packets formed by a payload and a header both encoded as optical signals. The payload is transferred through the network without any optical to electronic conversion. The header is processed in the early phase in the electronic domain. Optical packet switching may be considered as a long-term and more flexible alternative to the circuit-switched optical networks currently being deployed by operators. This innovative paradigm aims at optimizing the utilization of the dense wavelength division multiplexing (DWDM) channels by means of fast and highly dynamic resource allocation, overcoming the inefficiency typical of the circuit transfer modes. Traditionally, packet transfer modes have proved to be very flexible by nature, with respect to bandwidth exploitation. In fact, link capacity is shared in time by means of statistical multiplexing, while contentions occurring at each node are solved by storing packets as long as the required resources become available again. Therefore, network links are in general used more efficiently in OPS than in circuit-switching.

Raffaelli, Carla; Aleksic, Slavisa; Callegati, Franco; Cerroni, Walter; Maier, Guido; Pattavina, Achille; Savi, Michele

495

Thermionic gas switch  

DOEpatents

The present invention is directed to an improved temperature responsive thermionic gas switch utilizing a hollow cathode and a folded emitter surface area. The folded emitter surface area of the thermionic switch substantially increases the on/off ratio by changing the conduction surface area involved in the two modes thereof. The improved switch of this invention provides an on/off ratio of 450:1 compared to the 10:1 ratio of the prior known thermionic switch, while providing for adjusting the on current. In the improved switch of this invention the conduction area is made small in the off mode, while in the on mode the conduction area is made large. This is achieved by utilizing a folded hollow cathode configuration and utilizing a folded emitter surface area, and by making the dimensions of the folds small enough so that a space charge will develop in the convolutions of the folds and suppress unignited current, thus limiting the current carrying surface in the off mode.

Hatch, G.L.; Brummond, W.A.; Barrus, D.M.

1984-04-05

496

Stochastic dynamics of the prisoner's dilemma with cooperation facilitators  

E-print Network

In the framework of the paradigmatic prisoner's dilemma, we investigate the evolutionary dynamics of social dilemmas in the presence of "cooperation facilitators". In our model, cooperators and defectors interact as in the classical prisoner's dilemma game, where selection favors defection. However, here the presence of a small number of cooperation facilitators enhances the fitness (reproductive potential) of cooperators, while it does not alter that of defectors. In a finite population of size N, the dynamics of the prisoner's dilemma with facilitators is characterized by the probability that cooperation takes over (fixation probability) and by the mean times to reach the absorbing states. These quantities are computed exactly and using Fokker-Planck equations. Our findings, corroborated by stochastic simulations, demonstrate that the influence of facilitators crucially depends on the difference between their density z and the game's cost-to-benefit ratio r. When z>r, the fixation of cooperators is likely i...

Mobilia, Mauro

2012-01-01

497

Dynamic switch matrix for the TDMA satellite switching system  

NASA Technical Reports Server (NTRS)

Future high capacity satellite communication systems require signal processing on board satellites. The on-board signal processing includes switching of RF signals between multiple antennas to provide interconnection between the uplink and downlink beams. This paper describes the development of a dynamic switch matrix for a TDMA satellite switching system to be used in the next generation communications satellites. In this paper, a dynamic switch matrix, which includes the microwave switch matrix, the distribution control unit and the timing source, will be described. Several different microwave switch matrix architectures and switching devices were evaluated and compared. A unique coupler crossbar switch matrix architecture with dual-gate field effect transistor as switching element was developed. Experimental results of both microwave switch matrix (MSM) and distribution control unit (DCU) are presented. These test results verify the MSM with coupler crossbar architecture and dual-gate FET as switching element will meet the future SS-TDMA system requirements. Finally, the reliability of the dynamic switch matrix is addressed. The analysis shows reliability of 0.9981 for 7 year space operation can be achieved for the designed dynamic switch matrix.

Ho, P. T.; Wisniewski, J. H.; Pelose, J. R.; Perasso, H. M.

1982-01-01

498

Dynamic switch matrix for the TDMA satellite switching system  

NASA Astrophysics Data System (ADS)

Future high capacity satellite communication systems require signal processing on board satellites. The on-board signal processing includes switching of RF signals between multiple antennas to provide interconnection between the uplink and downlink beams. This paper describes the development of a dynamic switch matrix for a TDMA satellite switching system to be used in the next generation communications satellites. In this paper, a dynamic switch matrix, which includes the microwave switch matrix, the distribution control unit and the timing source, will be described. Several different microwave switch matrix architectures and switching devices were evaluated and compared. A unique coupler crossbar switch matrix architecture with dual-gate field effect transistor as switching element was developed. Experimental results of both microwave switch matrix (MSM) and distribution control unit (DCU) are presented. These test results verify the MSM with coupler crossbar architecture and dual-gate FET as switching element will meet the future SS-TDMA system requirements. Finally, the reliability of the dynamic switch matrix is addressed. The analysis shows reliability of 0.9981 for 7 year space operation can be achieved for the designed dynamic switch matrix.

Ho, P. T.; Wisniewski, J. H.; Pelose, J. R.; Perasso, H. M.

499

Non-stationary Policy Learning in 2-player Zero Sum Games Content Areas: machine learning, Markov decision processes, reinforcement learning  

E-print Network

Non-stationary Policy Learning in 2-player Zero Sum Games Content Areas: machine learning, Markov over the space of stochastic actions. Many previous machine learning approaches apply to single agent decision processes, reinforcement learning Abstract A key challenge in multiagent environments is the con

He, Sheng

500

Fermion Monte Carlo without fixed nodes: A Game of Life, death and annihilation in Slater Determinant space  

E-print Network

Fermion Monte Carlo without fixed nodes: A Game of Life, death and annihilation in Slater Monte Carlo method for the simulation of correlated many- electron systems in Full Configuration of many- electron systems via stochastic methods such as Diffusion quantum Monte Carlo (DMC) [1

Alavi, Ali