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SODA
2010
ACM
234views Algorithms» more  SODA 2010»
14 years 6 months ago
PTAS for maximum weight independent set problem with random weights in bounded degree graphs
Finding the largest independent set in a graph is a notoriously difficult NP-complete combinatorial optimization problem. Moreover, even for graphs with largest degree 3, no polyn...
David Gamarnik, David Goldberg, Theophane Weber
LATIN
2004
Springer
14 years 2 months ago
Combinatorial Problems on Strings with Applications to Protein Folding
We consider the problem of protein folding in the HP model on the 3D square lattice. This problem is combinatorially equivalent to folding a string of 0’s and 1’s so that the s...
Alantha Newman, Matthias Ruhl
HM
2007
Springer
114views Optimization» more  HM 2007»
14 years 26 days ago
Hybrid Numerical Optimization for Combinatorial Network Problems
Abstract. We discuss a general approach to hybridize traditional construction heuristics for combinatorial optimization problems with numerical based evolutionary algorithms. There...
Markus Chimani, Maria Kandyba, Mike Preuss
ESA
2009
Springer
159views Algorithms» more  ESA 2009»
14 years 3 months ago
Contraction Bidimensionality: The Accurate Picture
We provide new combinatorial theorems on the structure of graphs that are contained as contractions in graphs of large treewidth. As a consequence of our combinatorial results we u...
Fedor V. Fomin, Petr A. Golovach, Dimitrios M. Thi...
CP
2003
Springer
14 years 2 months ago
CP-IP Techniques for the Bid Evaluation in Combinatorial Auctions
Abstract. Combinatorial auctions are an important e-commerce application where bidders can bid on combinations of items. The problem of selecting the best bids that cover all items...
Alessio Guerri, Michela Milano