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SIAMJO
2010
128views more  SIAMJO 2010»
14 years 11 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
JCIT
2010
158views more  JCIT 2010»
14 years 11 months ago
A Flexible Grid Task Scheduling Algorithm Based on QoS Similarity
s In grid computing, the goals of task scheduling is to achieve high system optimization performance while matching multi-dimension Quiality of Service(QoS) requirement of applicat...
Kunfang Song, Shufen Ruan, Minghua Jiang
ALGORITHMICA
2010
145views more  ALGORITHMICA 2010»
15 years 4 months ago
Chordal Deletion is Fixed-Parameter Tractable
It is known to be NP-hard to decide whether a graph can be made chordal by the deletion of k vertices or by the deletion of k edges. Here we present a uniformly polynomial-time alg...
Dániel Marx
APIN
2010
108views more  APIN 2010»
15 years 4 months ago
A low variance error boosting algorithm
Abstract. This paper introduces a robust variant of AdaBoost, cwAdaBoost, that uses weight perturbation to reduce variance error, and is particularly effective when dealing with da...
Ching-Wei Wang, Andrew Hunter
EOR
2007
147views more  EOR 2007»
15 years 4 months ago
Routing and wavelength assignment in optical networks using bin packing based algorithms
This paper addresses the problem of routing and wavelength assignment (RWA) of static lightpath requests in wavelength routed optical networks. The objective is to minimize the nu...
Nina Skorin-Kapov