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» Approximability of Minimum AND-Circuits
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APPROX
2004
Springer
180views Algorithms» more  APPROX 2004»
14 years 3 months ago
A 3/4-Approximation Algorithm for Maximum ATSP with Weights Zero and One
We present a polynomial time 3/4-approximation algorithm for the maximum asymmetric TSP with weights zero and one. As applications, we get a 5/4-approximation algorithm for the (mi...
Markus Bläser
COCOON
2008
Springer
13 years 12 months ago
The Computational Complexity of Link Building
We study the problem of adding k new links to a directed graph G(V, E) in order to maximize the minimum PageRank value for a given subset of the nodes. We show that this problem is...
Martin Olsen
EOR
2002
105views more  EOR 2002»
13 years 10 months ago
Two-dimensional packing problems: A survey
We consider problems requiring to allocate a set of rectangular items to larger rectangular standardized units by minimizing the waste. In two-dimensional bin packing problems the...
Andrea Lodi, Silvano Martello, Michele Monaci
CORR
2011
Springer
146views Education» more  CORR 2011»
13 years 5 months ago
An Implicit Cover Problem in Wild Population Study
In an implicit combinatorial optimization problem, the constraints are not enumerated explicitly but rather stated implicitly through equations, other constraints or auxiliary alg...
Mary V. Ashley, Tanya Y. Berger-Wolf, Wanpracha Ar...
CORR
2011
Springer
188views Education» more  CORR 2011»
13 years 5 months ago
Planar Cycle Covering Graphs
We describe a new variational lower-bound on the minimum energy configuration of a planar binary Markov Random Field (MRF). Our method is based on adding auxiliary nodes to every...
Julian Yarkony, Alexander T. Ihler, Charless C. Fo...