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114
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JCO
2007
128views more  JCO 2007»
15 years 1 months ago
Approximation algorithms and hardness results for labeled connectivity problems
Let G = (V, E) be a connected multigraph, whose edges are associated with labels specified by an integer-valued function L : E → N. In addition, each label ℓ ∈ N has a non-...
Refael Hassin, Jérôme Monnot, Danny S...
82
Voted
COCOA
2008
Springer
15 years 2 months ago
Improved Primal-Dual Approximation Algorithm for the Connected Facility Location Problem
In the Connected Facility Location(ConFL) problem, we are given a graph G = (V, E) with nonnegative edge cost ce on the edges, a set of facilities F V , a set of demands, i.e., cl...
Hyunwoo Jung, Mohammad Khairul Hasan, Kyung-Yong C...
203
Voted
ICDT
2009
ACM
148views Database» more  ICDT 2009»
16 years 1 months ago
Tight results for clustering and summarizing data streams
In this paper we investigate algorithms and lower bounds for summarization problems over a single pass data stream. In particular we focus on histogram construction and K-center c...
Sudipto Guha
100
Voted
JCO
2008
117views more  JCO 2008»
15 years 1 months ago
Approximation algorithms for connected facility location problems
We study Connected Facility Location problems. We are given a connected graph G = (V, E) with nonnegative edge cost ce for each edge e E, a set of clients D V such that each cli...
Mohammad Khairul Hasan, Hyunwoo Jung, Kyung-Yong C...
101
Voted
COCOA
2007
Springer
15 years 2 months ago
Improved Approximation Algorithm for Connected Facility Location Problems
Mohammad Khairul Hasan, Hyunwoo Jung, Kyung-Yong C...