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Full-Text Articles in Social and Behavioral Sciences

Toward Large-Scale Agent Guidance In An Urban Taxi Service, Agussurja Lucas, Hoong Chuin Lau Aug 2012

Toward Large-Scale Agent Guidance In An Urban Taxi Service, Agussurja Lucas, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Empty taxi cruising represents a wastage of resources in the context of urban taxi services. In this work, we seek to minimize such wastage. An analysis of a large trace of taxi operations reveals that the services’ inefficiency is caused by drivers’ greedy cruising behavior. We model the existing system as a continuous time Markov chain. To address the problem, we propose that each taxi be equipped with an intelligent agent that will guide the driver when cruising for passengers. Then, drawing from AI literature on multiagent planning, we explore two possible ways to compute such guidance. The first formulation …


Aspects Of Exchangeability In The Shapley Value, R K. Amit, Parthasarathy Ramachandran Jan 2012

Aspects Of Exchangeability In The Shapley Value, R K. Amit, Parthasarathy Ramachandran

R K Amit

This paper characterizes the aspects of exchangeability in the Shapley value. We show that, in the Shapley value, each player’s prospects of joining a t-player game as the last member of the game is a moment sequence of the uniform distribution. We prove that, with finite exchangeability, the Shapley value is the only value in which the probability assignment is a unique mixture of independent and identically distributed probabilities. We also derive the Shapley value using the de Finetti’s theorem.


Strategic Defense And Attack For Series And Parallel Reliability Systems: Comment, Dan Kovenock, Brian Roberson Jan 2012

Strategic Defense And Attack For Series And Parallel Reliability Systems: Comment, Dan Kovenock, Brian Roberson

Economics Faculty Articles and Research

The contest-theoretic literature on the attack and defense of networks of targets focuses primarily on pure-strategy Nash equilibria. Hausken's 2008 European Journal of Operational Research article typifies this approach, and many of the models in this literature either build upon this model or utilize similar techniques. We show that Hausken's characterization of Nash equilibrium is invalid for much of the parameter space examined and provides necessary conditions for his solution to hold. The complete characterization of mixed-strategy equilibria remains an open problem, although there exist solutions in the literature for special prominent cases.


Colonel Blotto Games And Lancaster's Equations: A Novel Military Modeling Combination, Andrew Collins, Patrick T. Hester Jan 2012

Colonel Blotto Games And Lancaster's Equations: A Novel Military Modeling Combination, Andrew Collins, Patrick T. Hester

VMASC Publications

Military strategists face a difficult task when engaged in a battle against an adversarial force. They have to predict both what tactics their opponent will employ and the outcomes of any resultant conflicts in order to make the best decision about their actions. Game theory has been the dominant technique used by analysts to investigate the possible actions that an enemy will employ. Traditional game theory can be augmented by use of Lanchester equations, a set of differential equations used to determine the outcome of a conflict. This paper demonstrates a novel combination of game theory and Lanchester equations using …


Judicial Non-Compliance In A Non-Hierarchical Legal Order: Isolated Accident Or Omen Of Judicial Armageddon?, Arthur Dyevre Dec 2011

Judicial Non-Compliance In A Non-Hierarchical Legal Order: Isolated Accident Or Omen Of Judicial Armageddon?, Arthur Dyevre

Arthur Dyevre

In a multi-level, non-hierarchical court system, where courts at the upper echelon do not have the power to reverse the decisions of courts at the lower level, judicial cooperation appears crucial to the effectiveness of the higher-level law. For this reason, the recent judgment of the Czech Constitutional Court, which declared the decision of the Court of Justice in the Landtová case ultra vires, would seem to deal a terrible blow to the authority of European Union law. As doomsayers will be quick to point out, the Czech decision could set a dangerous precedent that may well one day bring …