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» On the Covering Steiner Problem
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99
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IPCO
2001
117views Optimization» more  IPCO 2001»
15 years 2 months ago
Pruning by Isomorphism in Branch-and-Cut
The paper presents a branch-and-cut for solving (0, 1) integer linear programs having a large symmetry group. The group is used for pruning the enumeration tree and for generating ...
François Margot
94
Voted
KDD
2008
ACM
115views Data Mining» more  KDD 2008»
16 years 1 months ago
Topical query decomposition
We introduce the problem of query decomposition, where we are given a query and a document retrieval system, and we want to produce a small set of queries whose union of resulting...
Francesco Bonchi, Carlos Castillo, Debora Donato, ...
STOC
2003
ACM
130views Algorithms» more  STOC 2003»
16 years 1 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
WDAG
2009
Springer
154views Algorithms» more  WDAG 2009»
15 years 7 months ago
Compact Multicast Routing
In a distributed network, a compact multicast scheme is a routing scheme that allows any source to send messages to any set of targets. We study the trade-off between the space us...
Ittai Abraham, Dahlia Malkhi, David Ratajczak
INFOCOM
2007
IEEE
15 years 7 months ago
pDCS: Security and Privacy Support for Data-Centric Sensor Networks
—The demand for efficient data dissemination/access techniques to find the relevant data from within a sensor network has led to the development of data-centric sensor networks...
Min Shao, Sencun Zhu, Wensheng Zhang, Guohong Cao