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Distributed average consensus has been widely studied for sensor network applications. Whereas the asymptotic convergence rate has been extensively studied in prior work, other important and practical issues, including energy efficiency, have received relatively less attention. This paper presents a scheme for distributed consensus that can achieve a good balance between convergence rate and energy...
Most topology control algorithms for wireless ad hoc networks strive to reduce energy consumption by creating a sparse topology with few long-distance links. However, in a sparse topology, the average path length is relatively large (increasing end-to-end delay), and the number of vertex-disjoint paths between source-destination pairs is relatively small (reducing fault-tolerance). Unlike traditional...
Digital traces left by a user of an online social networking service can be abused by a malicious party to compromise the person's privacy. This is exacerbated by the increasing overlap in user-bases among various services. In this paper, we propose an algorithm, Seed and Grow, to identify users from an anonymized social graph based solely on graph structure. The algorithm first identifies a seed...
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