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ISBI
2009
IEEE
14 years 5 months ago
Nuclear Segmentation in Microscope Cell Images: A Hand-Segmented Dataset and Comparison of Algorithms
Image segmentation is an essential step in many image analysis pipelines and many algorithms have been proposed to solve this problem. However, they are often evaluated subjective...
Luís Pedro Coelho, Aabid Shariff, Robert F....
SAC
1997
ACM
14 years 2 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
14 years 3 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
2010
13 years 5 months ago
A large neighbourhood search approach to the multi-activity shift scheduling problem
The challenge in shift scheduling lies in the construction of a set of work shifts, which are subject to specific regulations, in order to cover fluctuating staff demands. This pro...
Claude-Guy Quimper, Louis-Martin Rousseau
SAT
2007
Springer
146views Hardware» more  SAT 2007»
14 years 4 months ago
Algorithms for Variable-Weighted 2-SAT and Dual Problems
Abstract. In this paper we study NP-hard weighted satisfiability optimization problems for the class 2-CNF providing worst-case upper time bounds. Moreover we consider the monoton...
Stefan Porschen, Ewald Speckenmeyer