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METHOD AND DEVICE FOR DISCOVERING IMPORTANT WEIGHT OF NEURAL NET AND STORAGE MEDIUM WITH STORED IMPORTANT WEIGHT DISCOVERY PROGRAM FOR NEURAL NET
METHOD AND DEVICE FOR DISCOVERING IMPORTANT WEIGHT OF NEURAL NET AND STORAGE MEDIUM WITH STORED IMPORTANT WEIGHT DISCOVERY PROGRAM FOR NEURAL NET
PROBLEM TO BE SOLVED: To provide a method and a device for discovering important weight of neural net and a storage medium with stored important weight discovery program for neural net, which can discover a numerical rule with a clear important weight even when plural unwanted weights are included in a neural net. ;SOLUTION: The weight of the neural net and a penalty coefficient for every weight are initialized, a weight for minimizing a learning target function with square value penalty term is found while using a secondary learning method, a weight for verifying a crossing and updating the penalty coefficient is found while using the secondary learning method, a search direction for updating the penalty coefficient is analytically found from the provided weight on the basis of the theorem of a shadow function, a search width for updating the penalty coefficient is found on the base of a Gauss-Newton method, and the penalty coefficient is updated while using the secondary learning method.;COPYRIGHT: (C)2001,JPO
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