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184
Voted
STOC
2003
ACM
141views Algorithms» more  STOC 2003»
16 years 8 months ago
Better streaming algorithms for clustering problems
We study clustering problems in the streaming model, where the goal is to cluster a set of points by making one pass (or a few passes) over the data using a small amount of storag...
Moses Charikar, Liadan O'Callaghan, Rina Panigrahy
STOC
2003
ACM
130views Algorithms» more  STOC 2003»
16 years 8 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
PODS
2004
ACM
139views Database» more  PODS 2004»
16 years 7 months ago
On Preservation under Homomorphisms and Unions of Conjunctive Queries
Unions of conjunctive queries, also known as select-project-join-union queries, are the most frequently asked queries in relational database systems. These queries are definable b...
Albert Atserias, Anuj Dawar, Phokion G. Kolaitis
ICSE
2008
IEEE-ACM
16 years 7 months ago
The economy of collective attention for situated knowledge collaboration in software development
Because the knowledge required for the construction of a complex software system is often widely distributed among its members, programmers routinely engage in collaboration with ...
Yunwen Ye, Kumiyo Nakakoji, Yasuhiro Yamamoto
213
Voted
MOBIHOC
2008
ACM
16 years 7 months ago
A game approach for multi-channel allocation in multi-hop wireless networks
Channel allocation was extensively investigated in the framework of cellular networks, but it was rarely studied in the wireless ad-hoc networks, especially in the multi-hop ad-ho...
Lin Gao, Xinbing Wang