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ICALP
2010
Springer
15 years 6 months ago
Inapproximability of Hypergraph Vertex Cover and Applications to Scheduling Problems
Assuming the Unique Games Conjecture (UGC), we show optimal inapproximability results for two classic scheduling problems. We obtain a hardness of 2 − ε for the problem of mini...
Nikhil Bansal, Subhash Khot
WAOA
2005
Springer
161views Algorithms» more  WAOA 2005»
15 years 7 months ago
"Almost Stable" Matchings in the Roommates Problem
An instance of the classical Stable Roommates problem (sr) need not admit a stable matching. This motivates the problem of finding a matching that is “as stable as possible”, ...
David J. Abraham, Péter Biró, David ...
IWPEC
2004
Springer
15 years 7 months ago
Chordless Paths Through Three Vertices
Consider the following problem, that we call “Chordless Path through Three Vertices” or CP3V, for short: Given a simple undirected graph G = (V, E), a positive integer k, and t...
Robert Haas, Michael Hoffmann
ESA
2008
Springer
83views Algorithms» more  ESA 2008»
15 years 3 months ago
An Optimal Incremental Algorithm for Minimizing Lateness with Rejection
This paper re-examines the classical problem of minimizing maximum lateness which is defined as follows: given a collection of n jobs with processing times and due dates, in what o...
Samir Khuller, Julián Mestre
CPC
2006
110views more  CPC 2006»
15 years 1 months ago
Bootstrap Percolation on Infinite Trees and Non-Amenable Groups
Abstract. Bootstrap percolation on an arbitrary graph has a random initial configuration, where each vertex is occupied with probability p, independently of each other, and a deter...
József Balogh, Yuval Peres, Gábor Pe...