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» Approximating Min Sum Set Cover
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STACS
2007
Springer
14 years 1 months ago
Small Space Representations for Metric Min-Sum k -Clustering and Their Applications
The min-sum k-clustering problem is to partition a metric space (P, d) into k clusters C1, . . . , Ck ⊆ P such that k i=1 p,q∈Ci d(p, q) is minimized. We show the first effi...
Artur Czumaj, Christian Sohler
ISAAC
2005
Springer
97views Algorithms» more  ISAAC 2005»
14 years 1 months ago
A Min-Max Relation on Packing Feedback Vertex Sets
Let G be a graph with a nonnegative integral function w defined on V (G). A collection F of subsets of V (G) (repetition is allowed) is called a feedback vertex set packing in G ...
Xujin Chen, Guoli Ding, Xiaodong Hu, Wenan Zang
ESA
2005
Springer
146views Algorithms» more  ESA 2005»
14 years 1 months ago
An Approximation Algorithm for the Minimum Latency Set Cover Problem
The input to the minimum latency set cover problem (MLSC) consists of a set of jobs and a set of tools. Each job j needs a specific subset Sj of the tools in order to be processed...
Refael Hassin, Asaf Levin
WAOA
2005
Springer
170views Algorithms» more  WAOA 2005»
14 years 1 months ago
On Approximating Restricted Cycle Covers
A cycle cover of a graph is a set of cycles such that every vertex is part of exactly one cycle. An L-cycle cover is a cycle cover in which the length of every cycle is in the set...
Bodo Manthey
RANDOM
1998
Springer
13 years 11 months ago
A Derandomization Using Min-Wise Independent Permutations
abstract for submission to Random '98 not for distribution Andrei Z. Broder Moses Charikar Michael Mitzenmacher Min-wise independence is a recently introduced notion of limit...
Andrei Z. Broder, Moses Charikar, Michael Mitzenma...