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ICALP
2010
Springer
15 years 2 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 3 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 3 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»
14 years 11 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»
14 years 9 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...