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AAAI
2012
13 years 5 months 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»
15 years 2 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
15 years 1 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»
14 years 9 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»
15 years 8 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...