Approaches to attribute reduction of metric-fuzzy decision systems based on information theory

IF 8.1 1区 计算机科学 0 COMPUTER SCIENCE, INFORMATION SYSTEMS
Guirong Peng , Fei Li , Wei Yao
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引用次数: 0

Abstract

Fuzzy rough sets and information theory are both effective tools for processing large-scale data. This study combines the advantages of both to establish the attribute reduction theory and the method of metric fuzzy information systems based on information theory. First, it defines the concepts of metric fuzzy rough entropy, fuzzy joint rough entropy and fuzzy rough mutual information, explores their properties and relationships and constructs a method for evaluating attribute importance. Secondly, based on this theoretical foundation, two efficient attribute reduction algorithms are designed: the first algorithm doesn't rely on decision attributes, and its advantage is that it can effectively improve the computational efficiency; the second algorithm combines decision attributes, and its advantage is that it can optimize the reduction effect. Both algorithms use the strategies of forward selection and backward elimination to eliminate redundant attributes. Finally, this paper compares these two reduction algorithms with five commonly used reduction algorithms on 20 datasets and uses the average classification accuracy of 14 classifiers to evaluate the reduction effects of these algorithms. Experimental results show that the two algorithms proposed in this paper perform well in classification tasks, with their average accuracy ranking among the highest compared to other algorithms, thus verifying the efficiency and advantages of the reduction algorithms of metric fuzzy information systems in large-scale data processing.
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来源期刊
Information Sciences
Information Sciences 工程技术-计算机:信息系统
CiteScore
14.00
自引率
17.30%
发文量
1322
审稿时长
10.4 months
期刊介绍: Informatics and Computer Science Intelligent Systems Applications is an esteemed international journal that focuses on publishing original and creative research findings in the field of information sciences. We also feature a limited number of timely tutorial and surveying contributions. Our journal aims to cater to a diverse audience, including researchers, developers, managers, strategic planners, graduate students, and anyone interested in staying up-to-date with cutting-edge research in information science, knowledge engineering, and intelligent systems. While readers are expected to share a common interest in information science, they come from varying backgrounds such as engineering, mathematics, statistics, physics, computer science, cell biology, molecular biology, management science, cognitive science, neurobiology, behavioral sciences, and biochemistry.
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