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IPCO
2007
77views Optimization» more  IPCO 2007»
15 years 7 months ago
Mixed-Integer Vertex Covers on Bipartite Graphs
Let A be the edge-node incidence matrix of a bipartite graph G = (U, V ; E), I be a subset the nodes of G, and b be a vector such that 2b is integral. We consider the following mi...
Michele Conforti, Bert Gerards, Giacomo Zambelli
ICALP
2010
Springer
15 years 10 months ago
The Positive Semidefinite Grothendieck Problem with Rank Constraint
Given a positive integer n and a positive semidefinite matrix A = (Aij ) ∈ Rm×m the positive semidefinite Grothendieck problem with rank-nconstraint is (SDPn) maximize mX i=1 ...
Jop Briët, Fernando Mário de Oliveira ...
CP
2011
Springer
14 years 5 months ago
Pseudo-Tree-Based Incomplete Algorithm for Distributed Constraint Optimization with Quality Bounds
A Distributed Constraint Optimization Problem (DCOP) is a fundamental problem that can formalize various applications related to multi-agent cooperation. Since it is NP-hard, consi...
Tenda Okimoto, Yongjoon Joe, Atsushi Iwasaki, Mako...
WABI
2005
Springer
109views Bioinformatics» more  WABI 2005»
15 years 11 months ago
Optimal Protein Threading by Cost-Splitting
Abstract. In this paper, we use integer programming approach for solving a hard combinatorial optimization problem, namely protein threading. For this sequence-to-structure alignme...
Philippe Veber, Nicola Yanev, Rumen Andonov, Vince...
ICDT
2010
ACM
137views Database» more  ICDT 2010»
15 years 4 months ago
A Greedy Algorithm for Constructing a Low-Width Generalized Hypertree Decomposition
We propose a greedy algorithm which, given a hypergraph H and a positive integer k, produces a hypertree decomposition of width less than or equal to 3k −1, or determines that H...
Kaoru Katayama, Tatsuro Okawara, Yuka Itou