Learning Machines: Foundations of Trainable Pattern-classifying SystemsMcGraw-Hill, 1965 - 137 sivua |
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Tulokset 1 - 3 kokonaismäärästä 9
Sivu 88
... initial weight vectors ; Y belongs to one of the train- ing subsets , say Yi . or Then , either ( a ) W ; ( k ) • Yx > W ; ( k ) • Yk ( b ) there exists some l j = 1 , . . . , R , ji = 1 , ... " W ( ) . YW , ( * ) · Y j = R , li for ...
... initial weight vectors ; Y belongs to one of the train- ing subsets , say Yi . or Then , either ( a ) W ; ( k ) • Yx > W ; ( k ) • Yk ( b ) there exists some l j = 1 , . . . , R , ji = 1 , ... " W ( ) . YW , ( * ) · Y j = R , li for ...
Sivu 91
... initial weight vector W1 we may remove from the training sequence those patterns Y ' for which W Yx ' > 0. The reduced training sequence Sy then creates a reduced weight - vector sequence S✩ such that Ŷx • Ŵx ≤ 0 k ( 5.37 ) for all Ŷ ...
... initial weight vector W1 we may remove from the training sequence those patterns Y ' for which W Yx ' > 0. The reduced training sequence Sy then creates a reduced weight - vector sequence S✩ such that Ŷx • Ŵx ≤ 0 k ( 5.37 ) for all Ŷ ...
Sivu 103
... initial region . * This same phenomenon accounts for instances in which the committee train- ing procedure does not converge even when the initial weight vectors are all of the same length . Occasionally one of the weight vectors ...
... initial region . * This same phenomenon accounts for instances in which the committee train- ing procedure does not converge even when the initial weight vectors are all of the same length . Occasionally one of the weight vectors ...
Sisältö
TRAINABLE PATTERN CLASSIFIERS | 1 |
11 | 30 |
PARAMETRIC TRAINING METHODS | 43 |
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assume belonging to category Chapter cluster committee machine committee TLUS components correction increment covariance matrix d-dimensional decision surfaces denote diagonal matrix dot products error-correction procedure Euclidean distance example Fix and Hodges function g(X g₁(X gi(X given Hodges method hypersphere image-space implemented initial weight vectors ith bank layer of TLUS layered machine linear dichotomies linear discriminant functions linearly separable loss function mean vector minimum-distance classifier mode-seeking networks nonparametric number of patterns p₁ parameters parametric training partition pattern hyperplane pattern points pattern space pattern vector pattern-classifying patterns belonging perceptron piecewise linear plane point sets positive probability distributions prototype pattern PWL machine quadratic form quadric function rule sample covariance matrix shown in Fig solution weight vectors Stanford subsets X1 subsidiary discriminant functions Suppose terns TLU response training patterns training sequence training set training subsets transformation two-layer machine values W₁ weight point weight space weight-vector sequence X1 and X2 zero
Viitteet tähän teokseen
A Probabilistic Theory of Pattern Recognition Luc Devroye,László Györfi,Gabor Lugosi Rajoitettu esikatselu - 1997 |