Rough Fuzzy MLP : Modular
نویسندگان
چکیده
| A methodology is described for evolving a Rough-fuzzy multi layer perceptron with modular concept using a genetic algorithm to obtain a structured network suitable for both classiication and rule extraction. The modular concept, based on \divide and conquer" strategy, provides accelerated training and a compact network suitable for generating a minimum number of rules with high certainty values. The concept of variable mutation operator is introduced for preserving the localized structure of the constituting knowledge based subnetworks, while they are integrated and evolved. Rough set dependency rules are generated directly from the real valued attribute table containing fuzzy membership values. Two new indices viz., `certainty' and`confusion' in a decision are deened for evaluating quantitatively the quality of rules. The eeectiveness of the model and the rule extraction algorithm is extensively demonstrated through experiments alongwith comparisons.
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Evolutionary modular design of rough knowledge-based network using fuzzy attributes
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