12 citations · 13 across the 6 of their papers we have counts for
6 papers
Rational Consensus
Joseph Y. Halpern, Xavier Vilaca
We provide a game-theoretic analysis of consensus, assuming that processes are controlled by rational agents and may fail by crashing. We consider agents that \emph{care only about…
A Distributed Auctioneer for Resource Allocation in Decentralized Systems
Amin M. Khan, Xavier Vilaça, Luís Rodrigues +1
In decentralized systems, nodes often need to coordinate to access shared resources in a fair manner. One approach to perform such arbitration is to rely on auction mechanisms. Alt…
Accountability in Dynamic Networks
Xavier Vilaça, Luís Rodrigues
We take a game theoretical approach to determine necessary and sufficient conditions under which we can persuade rational agents to exchange messages in pairwise exchanges over lin…
On the Range of Equilibria Utilities of a Repeated Epidemic Dissemination Game with a Mediator
Xavier Vilaca, Luis Rodrigues
We consider eager-push epidemic dissemination in a complete graph. Time is divided into synchronous stages. In each stage, a source disseminates events. Each event is sent by t…
On the Effectiveness of Punishments in a Repeated Epidemic Dissemination Game
Xavier Vilaça, Luís Rodrigues
This work uses Game Theory to study the effectiveness of punishments as an incentive for rational nodes to follow an epidemic dissemination protocol. The dissemination process is m…
Asynchrony and Collusion in the N-party BAR Transfer Problem
Xavier Vilaça, Oksana Denysyuk, Luís Rodrigues
The problem of reliably transferring data from a set of producers to a set of consumers in the BAR model, named N-party BAR Transfer (NBART), is an important building b…