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ALGORITHMICA
2002
120views more  ALGORITHMICA 2002»
15 years 20 days ago
An Experimental Study of Algorithms for Weighted Completion Time Scheduling
We consider the total weighted completion time scheduling problem for parallel identical machines and precedence constraints, P jprecj PwiCi. This important and broad class of pro...
Ivan D. Baev, Waleed Meleis, Alexandre E. Eichenbe...
130
Voted
OSN
2007
185views more  OSN 2007»
15 years 8 days ago
Comparison of ILP formulations for the RWA problem
— We present a review of the various integer linear programming (ILP) formulations that have been proposed for the routing and wavelength assignment problem in WDM optical networ...
Brigitte Jaumard, Christophe Meyer, B. Thiongane
MP
2010
128views more  MP 2010»
14 years 11 months ago
Perspective reformulations of mixed integer nonlinear programs with indicator variables
Abstract. We study mixed integer nonlinear programs (MINLP)s that are driven by a collection of indicator variables where each indicator variable controls a subset of the decision ...
Oktay Günlük, Jeff Linderoth
IMCSIT
2010
14 years 10 months ago
Efficient Portfolio Optimization with Conditional Value at Risk
The portfolio optimization problem is modeled as a mean-risk bicriteria optimization problem where the expected return is maximized and some (scalar) risk measure is minimized. In ...
Wlodzimierz Ogryczak, Tomasz Sliwinski
ICB
2009
Springer
255views Biometrics» more  ICB 2009»
14 years 10 months ago
Automatic Partial Face Alignment in NIR Video Sequences
Face recognition with partial face images is an important problem in face biometrics. The necessity can arise in not so constrained environments such as in surveillance video, or p...
Jimei Yang, ShengCai Liao, Stan Z. Li