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» On the Containment of Forbidden Patterns Problems
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GBRPR
2007
Springer
15 years 5 months ago
Approximating TSP Solution by MST Based Graph Pyramid
The traveling salesperson problem (TSP) is difficult to solve for input instances with large number of cities. Instead of finding the solution of an input with a large number of c...
Yll Haxhimusa, Walter G. Kropatsch, Zygmunt Pizlo,...
PREMI
2005
Springer
15 years 5 months ago
A Rough Set-Based Magnetic Resonance Imaging Partial Volume Detection System
Abstract. Segmentation of magnetic resonance imaging (MRI) data entails assigning tissue class labels to voxels. The primary source of segmentation error is the partial volume eff...
Sebastian Widz, Kenneth Revett, Dominik Slezak
IJFCS
2008
110views more  IJFCS 2008»
14 years 11 months ago
Indexing Gapped-Factors Using a Tree
We present a data structure to index a specific kind of factors, that is of substrings, called gapped-factors. A gapped-factor is a factor containing a gap that is ignored during ...
Pierre Peterlongo, Julien Allali, Marie-France Sag...
CNSR
2004
IEEE
180views Communications» more  CNSR 2004»
15 years 3 months ago
The Reconstruction of User Sessions from a Server Log Using Improved Time-Oriented Heuristics
Web usage mining plays an important role in the personalization of Web services, adaptation of Web sites, and the improvement of Web server performance. It applies data mining tec...
Jie Zhang, Ali A. Ghorbani
ICDE
1998
IEEE
187views Database» more  ICDE 1998»
16 years 1 months ago
Mining Optimized Association Rules with Categorical and Numeric Attributes
?Mining association rules on large data sets has received considerable attention in recent years. Association rules are useful for determining correlations between attributes of a ...
Rajeev Rastogi, Kyuseok Shim