期刊
KNOWLEDGE-BASED SYSTEMS
卷 91, 期 -, 页码 32-45出版社
ELSEVIER
DOI: 10.1016/j.knosys.2015.07.036
关键词
Three-way decisions; Decision-theoretic rough sets; Loss function; Incomplete information system; Hybrid information system
资金
- National Science Foundation of China [71571148, 71201133, 71401206, 71490722, 61572406]
- Youth Social Science Foundation of the Chinese Education Commission [11YJC630127]
- Research Fund for the Doctoral Program of Higher Education of China [20120184120028]
- Fundamental Research Funds for the Central Universities of China [SWJTU12CX117, ZYGX2014J100]
As a natural extension of three-way decisions with incomplete information, this paper provides a novel three-way decision model based on incomplete information system. First, we define a new relation to describe the similarity degree of incomplete information. Then, in view of the missing values presented in incomplete information system, we utilize interval number to acquire the loss function. A hybrid information table which consist both of the incomplete information and loss function, is used to deal with the new three-way decision model. The key steps and algorithm for constructing the integrated three-way decision model are also carefully investigated. An empirical study of medical diagnosis validates the reasonability and effectiveness of our proposed model. (C) 2015 Elsevier B.V. All rights reserved.
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