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How Hard is Asynchronous Weight Reassignment? (Extended Version)
Hasan Heydari, Guthemberg Silvestre, Alysson Bessani
The performance of distributed storage systems deployed on wide-area networks can be improved using weighted (majority) quorum systems instead of their regular variants due to the…
On the Minimal Knowledge Required for Solving Stellar Consensus
Robin Vassantlal, Hasan Heydari, Alysson Bessani
Byzantine Consensus is fundamental for building consistent and fault-tolerant distributed systems. In traditional quorum-based consensus protocols, quorums are defined using global…
Efficient Consensus-Free Weight Reassignment for Atomic Storage (Extended Version)
Hasan Heydari, Guthemberg Silvestre, Luciana Arantes
Weighted voting is a conventional approach to improving the performance of replicated systems based on commonly-used majority quorum systems in heterogeneous environments. In long-…
Distributed Maximal Independent Set on Scale-Free Networks
Hasan Heydari, S. Mahmoud Taheri, Kaveh Kavousi
The problem of distributed maximal independent set (MIS) is investigated on inhomogeneous random graphs with power-law weights by which the scale-free networks can be produced. Suc…