We present DAG-Rider, the first asynchronous Byzantine Atomic Broadcast protocol that achieves optimal resilience, optimal amortized communication complexity, and optimal time …
In online scenarios requests arrive over time, and each request must be serviced in an irrevocable manner before the next request arrives. Online algorithms with advice is an area …
A Beloglazov, R Buyya - Concurrency and Computation …, 2012 - Wiley Online Library
The rapid growth in demand for computational power driven by modern service applications combined with the shift to the Cloud computing model have led to the establishment of large …
For many applications a randomized algorithm is either the simplest algorithm available, or the fastest, or both. This tutorial presents the basic concepts in the design and analysis of …
We show that the propositional Mu-Calculus is equivalent in expressive power to finite automata on infinite trees. Since complementation is trivial in the Mu-Calculus, our …
Y Bartal - Proceedings of 37th Conference on Foundations of …, 1996 - ieeexplore.ieee.org
This paper provides a novel technique for the analysis of randomized algorithms for optimization problems on metric spaces, by relating the randomized performance ratio for …
In practice, almost all dynamic systems require decisions to be made on-line, without full knowledge of their future impact on the system. A general model for the processing of …
Competitive analysis is concerned with comparing the performance of on-line algorithms with that of optimal off-line algorithms. In some cases randomization can lead to algorithms …
Y Bartal - Proceedings of the thirtieth annual ACM symposium on …, 1998 - dl.acm.org
We improve the result of [BartSG] on probabilistic approximation of metric spaces by “hierarchically wellseparated tree” metric spaces. We obtain an approximation factor of O …