Design of Fuzzy Rule-based Classifiers with Inhomogeneous Fuzzy Partitions
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- Takahashi Yuji
- Osaka Prefecture University
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- Nojima Yusuke
- Osaka Prefecture University
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- Ishibuchi Hisao
- Osaka Prefecture University
Bibliographic Information
- Other Title
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- 不均等ファジィ集合を用いたファジィ識別器設計
Abstract
Discretization of continuous attributes is a key issue in classifier design from numerical data. In the fuzzy systems community, generating membership functions from numerical data has been an important research topic. Fuzzy genetics-based machine learning (GBML), which is one of the frequently-used techniques to design fuzzy rule-based classifiers, has often used uniform fuzzy partitions to generate initial membership functions. In this paper, we apply a class entropy measure to the discritization of numerical attiributes in order to generate inhomogeneous interval partitions. Nonuniform asymmetric membership functions are constructed from the generated interval partitions by introducing a parameter called "fuzzification grade" (0: interval, 1: full fuzzification). Through computational experiments, we examine the effects of the fuzzification grade on the accuracy of fuzzy rule-based classifiers. We also propose an ensemble classifier which has several fuzzy rule-based classifiers with different fuzzification grades.
Journal
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- Proceedings of the Fuzzy System Symposium
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Proceedings of the Fuzzy System Symposium 30 (0), 196-199, 2014
Japan Society for Fuzzy Theory and Intelligent Informatics
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Keywords
Details 詳細情報について
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- CRID
- 1390282680650169088
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- NII Article ID
- 130005480456
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed