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Normality, semi-normality and prerequisite-freedom are examples of syntactic restrictions proposed for defaults. The expressive powers of Reiter's default logic under the corresponding syntactic restrictions have been analyzed by Janhunen. It is quite natural that to ask if such restrictions...
In this paper we present a theoretical framework on Multilevel Data Summarization (MDS) - a process to summarize an information system into rule sets with different concise degrees (granularity) and corresponding exception sets, which is viewed as the rule-plus-exception model in cognitive...
The paper proposes a novel feature ranking technique using discernibility matrix. Discernibility matrix is used in rough set theory for reduct computation. By making use of attribute frequency information in discernibility matrix, the paper develops a fast feature ranking mechanism. Based on the...
Neural network ensemble can significantly improve the generalization ability of neural network based systems. However, its comprehensibility is even worse than that of a single neural network because it comprises a collection of individual neural networks. In this paper, an approach named REFNE...
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