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Heuristic Search of Exact Biclusters in Binary Data Cover

Abstract

The biclustering of two-dimensional homogeneous data consists in finding a subset of rows and a subset of columns whose intersection provides a set of cells whose values fulfil a specified condition. Usually it is defined as equality or comparability. One of the presented approaches is based on the model of Boolean reasoning, in which finding biclusters in binary or discrete data comes down to the problem of finding prime implicants of some Boolean function. Due to the high computational complexity of this task, the application of some heuristics should be considered. In the paper, a modification of the well-known Johnson strategy for prime implicant approximation induction is presented, which is necessary for the biclustering problem. The new method is applied to artificial and biomedical datasets.

DOI: https://doi.org/10.34768/amcs-2020-0013 | Journal eISSN: 2083-8492 | Journal ISSN: 1641-876X
Language: English
Page range: 161 - 171
Submitted on: Dec 11, 2018
Accepted on: Sep 2, 2019
Published on: Apr 3, 2020
Published by: University of Zielona Góra
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2020 Marcin Michalak, Roman Jaksik, Dominik Ślęzak, published by University of Zielona Góra
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.