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NSDI
2004
14 years 11 months ago
Beehive: O(1) Lookup Performance for Power-Law Query Distributions in Peer-to-Peer Overlays
Structured peer-to-peer hash tables provide decentralization, self-organization, failure-resilience, and good worst-case lookup performance for applications, but suffer from high ...
Venugopalan Ramasubramanian, Emin Gün Sirer
BIOINFORMATICS
2011
14 years 1 months ago
RINQ: Reference-based Indexing for Network Queries
We consider the problem of similarity queries in biological network databases. Given a database of networks, similarity query returns all the database networks whose similarity (i...
Günhan Gülsoy, Tamer Kahveci
STOC
2003
ACM
130views Algorithms» more  STOC 2003»
15 years 9 months ago
A tight bound on approximating arbitrary metrics by tree metrics
In this paper, we show that any n point metric space can be embedded into a distribution over dominating tree metrics such that the expected stretch of any edge is O(log n). This ...
Jittat Fakcharoenphol, Satish Rao, Kunal Talwar
CORR
2008
Springer
88views Education» more  CORR 2008»
14 years 9 months ago
Lower bounds for distributed markov chain problems
We study the worst-case communication complexity of distributed algorithms computing a path problem based on stationary distributions of random walks in a network G with the caveat...
Rahul Sami, Andy Twigg
TKDE
2012
487views Formal Methods» more  TKDE 2012»
12 years 12 months ago
Query Planning for Continuous Aggregation Queries over a Network of Data Aggregators
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...
Rajeev Gupta, Krithi Ramamritham