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EOR
2007
90views more  EOR 2007»
15 years 6 months ago
Arc routing problems with time-dependent service costs
This paper studies an arc routing problem with capacity constraints and time-dependent service costs. This problem is motivated by winter gritting applications where the ‘‘tim...
Mariam Tagmouti, Michel Gendreau, Jean-Yves Potvin
SAC
1997
ACM
15 years 10 months ago
Crozzle: an NP-complete problem
At the 1996 Symposium on Applied Computing, it was argued that the R-by-C Crozzle problem was NP-Hard, but not in NP. The original Crozzle problem is a word puzzle that appears, w...
David Binkley, Bradley M. Kuhn
FCT
2003
Springer
15 years 11 months ago
Complexity of Approximating Closest Substring Problems
The closest substring problem, where a short string is sought that minimizes the number of mismatches between it and each of a given set of strings, is a minimization problem with ...
Patricia A. Evans, Andrew D. Smith
HEURISTICS
2006
197views more  HEURISTICS 2006»
15 years 6 months ago
Bucket elimination for multiobjective optimization problems
Multiobjective optimization deals with problems involving multiple measures of performance that should be optimized simultaneously. In this paper we extend bucket elimination (BE),...
Emma Rollon, Javier Larrosa
JOIN
2007
133views more  JOIN 2007»
15 years 6 months ago
The Coverage Problem in Three-Dimensional Wireless Sensor Networks
— One of the fundamental issues in sensor networks is the coverage problem, which reflects how well a sensor network is monitored or tracked by sensors. In this paper, we formul...
Chi-Fu Huang, Yu-Chee Tseng, Li-Chu Lo