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ORL
2006
114views more  ORL 2006»
13 years 5 months ago
A (1-1/e)-approximation algorithm for the generalized assignment problem
We give a (1 - 1/e)-approximation algorithm for the Max-Profit Generalized Assignment Problem (Max-GAP) with fixed profits when the profit (but not necessarily the size) of every ...
Zeev Nutov, Israel Beniaminy, Raphael Yuster
ORL
2006
60views more  ORL 2006»
13 years 5 months ago
Finding the K shortest hyperpaths using reoptimization
Lars Relund Nielsen, Daniele Pretolani, Kim Allan ...
ORL
2006
105views more  ORL 2006»
13 years 5 months ago
Inventory placement in acyclic supply chain networks
The strategic safety stock placement problem is a constrained separable concave minimization problem and so is solvable, in principle, as a sequence of mixed-integer programming p...
Thomas L. Magnanti, Zuo-Jun Max Shen, Jia Shu, Dav...
ORL
2006
54views more  ORL 2006»
13 years 5 months ago
A workload-dependent M/G/1 queue under a two-stage service policy
We consider an M/G/1 queueing system where the speed of the server depends on the amount of work present in the system. As a service policy, we adopt the PM , release policy in a ...
Jiyeon Lee, Jongwoo Kim
ORL
2006
55views more  ORL 2006»
13 years 5 months ago
Who should be given priority in a queue?
We consider a memoryless single server queue with two classes of customers, each having its fixed entry fee. We show that profit and social welfare may benefit from a service disc...
Refael Hassin, Moshe Haviv
ORL
2006
67views more  ORL 2006»
13 years 5 months ago
Approximation algorithms for dynamic resource allocation
Vivek F. Farias, Benjamin Van Roy
ORL
2006
98views more  ORL 2006»
13 years 5 months ago
The communication complexity of private value single-item auctions
This paper is concerned with information revelation in single-item auctions. We compute how much data needs to be transmitted in three strategically equivalent auctions--the Vickr...
Elena Grigorieva, P. Jean-Jacques Herings, Rudolf ...
ORL
2006
73views more  ORL 2006»
13 years 5 months ago
Coordination through De Bruijn sequences
Let
Olivier Gossner, Penélope Hernández
ORL
2006
91views more  ORL 2006»
13 years 5 months ago
Resource augmentation in two-dimensional packing with orthogonal rotations
We consider the problem of packing two-dimensional rectangles into the minimum number of unit squares, when 90 rotations are allowed. Our main contribution is a polynomial-time al...
José R. Correa