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Chinese Journal of Management Science ›› 2014, Vol. 22 ›› Issue (4): 83-91.

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A Decision Knowledge Discovery Method for Multi-attribute Cases with Non-continuous Features

LIANG Chang-yong1, GU Dong-xiao1,3, CHENG Wen-juan1, YANG Chang-hui1,4, GU Zuo-zuo2   

  1. 1. School of Management at Hefei University of Technology, Hefei 230009, Chian;
    2. School of Arts and Media, Anhui University, Hefei 230011, China;
    3. School of Information Management at Nanjing University, Nanjing 210093, China;
    4. Anhui Provincial Industrial Transfer and Innovation Development Key Research Institute of Humanities Social Science, Hefei 230009, China
  • Received:2012-06-30 Revised:2013-05-07 Online:2014-04-20 Published:2014-04-23

Abstract: The information with non-continuous features is ubiquitous in diagnosis and treatment decision making cases. The knowledge acquisition of the cases with this kind of feature has always been a key and bottleneck in multi-attribute case decision making. In this paper, conditional probability and GAs are integrated into case-based reasoning technology to develop an extension method of traditional KNN——CRMGACP algorithm, which includes a GAs-based weight determination method and an improved similarity algorithm integrating the conditional probability. Collecting data from AH Hospital, which is one of large-scale hospitals in Anhui province, CancerCBRSys is developed as the experimental tool for tests. Experimental study is competed by comparing the performance amongst four different case-based reasoning methods. The results show that CRMGACP has the best performance and shows significant advantage in various statistics. In general, CRM-GACP solves the problem of knowledge discovery from non-continuous cases and is hopeful to be a powerful decision-making tool in the research area of clinical decision making.

Key words: complex multi-attribute decision making, public healch mangement, knowledge discovery, discrete variable, case-based reasoning

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