Download e-book for kindle: Algorithmic Game Theory: 8th International Symposium, SAGT by Martin Hoefer

By Martin Hoefer

ISBN-10: 3662484323

ISBN-13: 9783662484326

ISBN-10: 3662484331

ISBN-13: 9783662484333

This ebook constitutes the refereed lawsuits of the eighth foreign Symposium on Algorithmic video game conception, SAGT 2015, held in Saarbrücken, Germany, in September 2015.

The 22 complete papers offered including one prolonged summary and six short bulletins have been rigorously reviewed and chosen from sixty three submissions. They hide a variety of very important elements of algorithmic video game concept, corresponding to matching less than personal tastes; rate sharing; mechanism layout and social selection; auctions; networking; routing and equity; and equilibrium computation.

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Extra resources for Algorithmic Game Theory: 8th International Symposium, SAGT 2015, Saarbrücken, Germany, September 28–30, 2015, Proceedings

Example text

The same holds for the number of violated forced edge constraints in sr max forced. On the positive side, we can close the gap with the best possible approximation ratio if Q = ∅ or |Q| is sufficiently large. To derive this result, we use the 2-approximability of weighted sr for non-negative weight functions [25]. Due to the non-negativity constraint, the case of 0 < |Q| < |M | remains open. Theorem 12. If |Q| ≥ |M | for a stable matching M , then sr min restricted violations is 2-approximable in polynomial time.

We write c a c to denote that a either prefers c to c or is indifferent between them, and say that a weakly prefers c to c . Because of indifference, each applicant divides her acceptable courses into indifference classes such that she is indifferent between the courses in the same class and has a strict preference over courses in different classes. Let Cta denote the t’th indifference class, or tie, of applicant a where t ∈ [n2 ]. We assume that Cta = ∅ implies Cta = ∅ for all t > t. , P (a ) = (C1a , C2a , · · · , Cna2 ); occasionally we consider P (a ) to be a set itself and write c ∈ P (a ) instead of c ∈ Cta for some t.

We explore the design of specialized market mechanisms that match demand to supply while taking into account important positive demand externalities: sensors are digital goods and their cost can be shared by applications. We focus on the buyer side and define different demand models according to the flexibility in choosing sensor data for satisfying application needs. We then investigate the properties of various costsharing mechanisms with respect to efficiency and budget balance. In doing so, we also propose and study a new mechanism, which although lacks strategyproofness, it exhibits important efficiency improvement along with certain fairness properties.

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Algorithmic Game Theory: 8th International Symposium, SAGT 2015, Saarbrücken, Germany, September 28–30, 2015, Proceedings by Martin Hoefer


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