Genetic lateral tuning for subgroup discovery with fuzzy rules using the algorithm NMEEF-SD
- DOI
- 10.1080/18756891.2012.685323How to use a DOI?
- Keywords
- Subgroup discovery, evolutionary fuzzy system, fuzzy rules, 2-tuples linguistic representation
- Abstract
The main objective of subgroup discovery is to discover interesting and interpretable patterns with respect to a specific property. The use of evolutionary fuzzy systems provides good algorithms to approach this problem. In this sense, NMEEF-SD algorithm –one of the most representative evolutionary fuzzy systems for subgroup discovery–obtains precise and interpretable subgroups. However in the majority of the evolutionary fuzzy systems, the membership functions of the linguistic labels are usually fixed to static values and the partitions are not adapted to the context of each variable. In this paper, a post-processing tuning step to improve the results of the subgroup discovery algorithm NMEEF-SD is proposed, allowing the partitions to be adapted to the context the variables. The application of this tuning step is a novelty in subgroup discovery and consist of a genetic algorithm which allows the lateral displacement of the membership functions of a label considering a unique parameter, using the 2-tuples linguistic representation. The results obtained using different data sets of the KEEL repository show the improvement in the performance of the NMEEF-SD algorithm with lateral displacement. The study is supported by statistical tests to improve the analysis performed.
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - JOUR AU - C.J. Carmona AU - P. González AU - M.J. Gacto AU - M.J. del Jesus PY - 2012 DA - 2012/04/01 TI - Genetic lateral tuning for subgroup discovery with fuzzy rules using the algorithm NMEEF-SD JO - International Journal of Computational Intelligence Systems SP - 355 EP - 367 VL - 5 IS - 2 SN - 1875-6883 UR - https://doi.org/10.1080/18756891.2012.685323 DO - 10.1080/18756891.2012.685323 ID - Carmona2012 ER -