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| Evidential Reasoning of Knowledge System Based on Fuzzy Rough Sets |
| CHENG Yi1,2,3, MIAO Duo-Qian1,3, FENG Qin-Rong1,3 |
1.Key Laboratory of Embedded System and Service Computing of Ministry of Education, Tongji University,Shanghai 201804
2. College of Mathematical Sciences, Ocean University of China, Qingdao 2660713.
Department of Computer Science and Technology, Tongji University, Shanghai 201804 |
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Abstract Fuzzy belief function and fuzzy plausible function are defined on Dubois fuzzy rough sets, Radzikowska fuzzy rough sets and fuzzy rough sets over two universes respectively. Then the equation relation between fuzzy belief function and lower approximation quality is proved. Thus, a model for evidential reasoning in fuzzy decision table is proposed. An example shows that the model is effective.
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Received: 12 March 2007
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2008, Vol. 21 
