[특허]Genetic algorithm technique for designing neural networks

Genetic algorithm technique for designing neural networks 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/18
출원번호	US-0892401 (1992-05-28)
발명자 / 주소	Harvey Robert L. (Lexington MA)
출원인 / 주소	Massachusetts Institute of Technology (Cambridge MA 02)
인용정보	피인용 횟수 : 52 인용 특허 : 0

초록 ▼

A generic algorithm search is applied to determine an optimum set of values (e.g., interconnection weights in a neural network), each value being associated with a pair of elements drawn from a universe of N elements, N an integer greater than zero, where the utility of any possible set of said values may be measured. An initial possible set of values is assembled, the values being organized in a matrix whose rows and columns correspond to the elements. A genetic algorithm operator is applied to generate successor matrices from said matrix. Matrix computations are performed on the successor matrices to generate measures of the relative utilities of the successor matrices. A surviving matrix is selected from the successor matrices on the basis of the metrics. The steps are repeated until the metric of the surviving matrix is satisfactory.

대표청구항 ▼

A computer method for implementing a neural network for use in a selected application, said neural network being implemented to effect a desired relationship between inputs representing real world phenomena and outputs corresponding to the inputs, said neural network having neurons and neurons interconnections each of said neurons possibly having an interconnection to any other of said neurons, each of said interconnections characterized by an associated weight value, said weight values having potentially any value including zero, positive, or negative, the method comprising (a) by computer, searching possible sets of weight values and selecting a set of weight values for use in the neural network, said step of searching and selecting comprising (i) picking an initial set of weight values; (ii) organizing said initial set of weight values in rows and columns, so the weight values in each of said rows all are associated with interconnections to the same one of said neurons, and the weight values in each of said columns all are associated with interconnections from the same one of said neurons; (iii) generating successor sets of weight values from said initial set of weight values; (iv) for each of said successor sets of weight values, determining test outputs of a neural network having those weights, when activated by predetermined inputs; (v) analyzing the merits of each of said successor sets of weight values based on how well the test outputs conform to predetermined outputs; (vi) selecting a single surviving set of weight values from among said successor sets of weight values based on the relative merits of said surviving set of weight values, said surviving set of weight values serving as an initial set; and (vii) if the merits of said surviving set of weight values meet a threshold, treating said surviving set of weight values as a final set of weight values; otherwise repeating steps (iii)-(vi) using said surviving set of weights as a new initial set of weight values; and (b) implementing said neural network with said final set of weight values.

이 특허를 인용한 특허 (52)

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Genetic algorithm technique for designing neural networks 원문보기

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Genetic algorithm technique for designing neural networks 원문보기

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