煤(岩)体压应力型冲击地压发生全过程机理研究
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1.Research on the clustering analysis and similarity in factor space
- 关键词:
- Reliability analysis;Numerical methods;Factor analysis;Attribute circle;Factor space;Multiple domains;Object classification;Similarity
- Li, Sha-Sha;Cui, Tie-Jun;Liu, Jian
- 2018年
- 会议
In this paper, we study the in uence of multipfe domain attributes on the clustering analysis of object based on factor space. The representation method of graphical domain attribute is proposed for the object, which is called attribute circle. An attribute circle on represent Infinite domain attributes. The similarity analysis of objects is first based on the concept of attribute circle, and the definition of graphical similarity is transformed into the definition of numerical similarity, and then (he clustering analysis method of object set is studied and improved. Considering three kinds of graphical overlap, the analytic solution of similarity is obtained for numerical calculation. The clustering rules: strictly obey the similarity division and dissimilarity division, and refer to fuzzy similarity division. The reliability evaluation semantics of the actual electrical system are listed as the study object set, and the clustering analysis method and its improvement are carried out. The results show that the relation between decision set D and object set U means that the division of U is nonslngular and accurate for D. Although the system reliability Is evaluated in different environments, these evaluation semantics are rclativefy objective, and can support each other. The two methods of similarity calculation haw the same conclusion, but the improved method is more accurate and complex. © 2018 CRL Publishing. All rights reserved.
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