Greedy Modifications of OAC-triclustering Algorithm
Author(s) -
Dmitry Gnatyshak
Publication year - 2014
Publication title -
procedia computer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.334
H-Index - 76
ISSN - 1877-0509
DOI - 10.1016/j.procs.2014.05.367
Subject(s) - computer science , prime (order theory) , algorithm , greedy algorithm , noise (video) , artificial intelligence , mathematics , combinatorics , image (mathematics)
In this paper we propose several possible modifications to the OAC-triclustering algorithms based on the prime operators. This method based on the framework of Formal Concept Analysis showed some rather promising results in the previous research. But while it is fast and efficient with respect to such measures as average density of the output, diversity, coverage, and noise- tolerance, it produces rather large number of triclusters. This makes it almost impossible for the expert to manually check the results. We show that the proposed post-processing techniques not only reduce the size of the output for this approach and keep the good values for the measures, but also keep the time complexity of the original algorithm
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