LEARNING MACHINE

PURPOSE:To shorten the time required for learning by determining the steepest drop direction as a minimum error point search direction when a last weight variation quantity is less than a constant threshold value and determining a conjugate gradient direction in other cases. CONSTITUTION:In a 1st mi...

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Bibliographic Details
Main Authors TOGAWA HAYATO, SHIMEKI TAIJI, TAKAGI HIDEYUKI, KODA TOSHIYUKI, SAKAGAMI SHIGEO
Format Patent
LanguageEnglish
Published 27.08.1991
Subjects
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PURPOSE:To shorten the time required for learning by determining the steepest drop direction as a minimum error point search direction when a last weight variation quantity is less than a constant threshold value and determining a conjugate gradient direction in other cases. CONSTITUTION:In a 1st minimum error point search, a search direction determining means 16 determines the steepest drop direction as the minimum error search direction in a weight space represented by weight vectors of variable weight multiplying means 3 - 8. In 2nd and succeeding minimum error searches, the search direction determining means 16 determines the steepest drop direction as the minimum error point search direction in the weight space when the last weight variation quantity is less than the constant threshold value or the conjugate gradient direction in other cases. Thus, the best minimum error point search direction is found to make the error sufficiently small in a short learning time and the learning is completed.
Bibliography:Application Number: JP19890339001