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4OR
2004
90views more  4OR 2004»
15 years 6 months ago
A MIP approach for some practical packing problems: Balancing constraints and tetris-like items
This paper considers packing problems with balancing conditions and items consisting of clusters of parallelepipeds (mutually orthogonal, i.e. tetris-like items). This issue is qu...
Giorgio Fasano
CP
2008
Springer
15 years 8 months ago
Solving a Telecommunications Feature Subscription Configuration Problem
Abstract. Call control features (e.g., call-divert, voice-mail) are primitive options to which users can subscribe off-line to personalise their service. The configuration of a fea...
David Lesaint, Deepak Mehta, Barry O'Sullivan, Lui...
MP
2008
117views more  MP 2008»
15 years 6 months ago
Multiplier convergence in trust-region methods with application to convergence of decomposition methods for MPECs
Abstract. We study piecewise decomposition methods for mathematical programs with equilibrium constraints (MPECs) for which all constraint functions are linear. At each iteration o...
Giovanni Giallombardo, Daniel Ralph
ICALP
2001
Springer
15 years 10 months ago
On the Approximability of Average Completion Time Scheduling under Precedence Constraints
Abstract. We consider the scheduling problem of minimizing the average weighted job completion time on a single machine under precedence constraints. We show that this problem with...
Gerhard J. Woeginger
ECOOP
2006
Springer
15 years 10 months ago
Variance and Generalized Constraints for C# Generics
Abstract. Generic types in C behave invariantly with respect to subtyping. We propose a system of type-safe variance for C that supports the declaration of covariant and contravari...
Burak Emir, Andrew Kennedy, Claudio V. Russo, Dach...