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On Reduct and Attribute Importance Based on Upper Approximations in Rough Set Theory
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- Inuiguchi Masahiro
- Osaka University
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- Tsurumi Masayo
- Osaka University
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- Muranaka Chihiro
- Osaka University
Bibliographic Information
- Other Title
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- ラフ集合理論における上近似に基づく縮約と属性重要度について
Description
In rough set analysis, lower approximations have been utilized more frequently than upper approximations. In this paper, we shall show a family of upper approximations can retain more information than that of lower approximations. We define a reduct and a measure of specificity based on upper approximations. The usefulness and properties of these concept are discussed.
Journal
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- Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers
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Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers SCI04 (0), 115-115, 2004
The Institute of Systems, Control and Information Engineers
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Details 詳細情報について
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- CRID
- 1390282680598733696
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- NII Article ID
- 130006982058
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed