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AAAI
2012
12 years 10 days ago
The Price of Neutrality for the Ranked Pairs Method
The complexity of the winner determination problem has been studied for almost all common voting rules. A notable exception, possibly caused by some confusion regarding its exact ...
Markus Brill, Felix A. Fischer
IPL
2007
71views more  IPL 2007»
13 years 9 months ago
Relaxations of semiring constraint satisfaction problems
Abstract. The Semiring Constraint Satisfaction Problem (SCSP) framework is a popular approach for the representation of partial constraint satisfaction problems. In this framework ...
Louise Leenen, Thomas Andreas Meyer, Aditya Ghose
KBSE
2010
IEEE
13 years 8 months ago
Apt-pbo: solving the software dependency problem using pseudo-boolean optimization
The installation of software packages depends on the correct resolution of dependencies and conflicts between packages. This problem is NP-complete and, as expected, is a hard ta...
Paulo Trezentos, Inês Lynce, Arlindo L. Oliv...
SIAMJO
2010
128views more  SIAMJO 2010»
13 years 4 months ago
Solving Log-Determinant Optimization Problems by a Newton-CG Primal Proximal Point Algorithm
We propose a Newton-CG primal proximal point algorithm for solving large scale log-determinant optimization problems. Our algorithm employs the essential ideas of the proximal poi...
Chengjing Wang, Defeng Sun, Kim-Chuan Toh
ISAAC
2004
Springer
207views Algorithms» more  ISAAC 2004»
14 years 3 months ago
Pareto Optimality in House Allocation Problems
We study Pareto optimal matchings in the context of house allocation problems. We present an O( √ nm) algorithm, based on Gale’s Top Trading Cycles Method, for finding a maxim...
David J. Abraham, Katarína Cechlárov...