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CPAIOR
2009
Springer
14 years 3 months ago
2009
Springer
Context-free grammar constraints enforce that a sequence of variables forms a word in a language defined by a context-free grammar. The constraint has received a lot of attention ...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— Multi-slot resource scheduling in a general two dimensional wireless ad hoc network, is a hard problem with no known polynomial-time solution. Recent optimization theoretic ana...
TASE
2008
IEEE
13 years 9 months ago
2008
IEEE
Dynamic programming, branch-and-bound, and constraint programming are the standard solution principles for nding optimal solutions to machine scheduling problems. We propose a new ...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— In this paper, we investigate the problem of minimizing the average transmission power of users while guaranteeing the average delay constraints in time-varying uplink ...
CP
2005
Springer
14 years 2 months ago
2005
Springer
One of the critical problems in the call center industries is the staffing problem since they must face variable demands and because staff costs represent a major part of the cost...