Rechercher une fonction PHP

fann _get _cascade _candidate _change _fraction

Contents

(PECL fann >= 1.0.0)

fann_get_cascade_candidate_change_fraction — Returns the cascade candidate change fraction

Description

fann_get_cascade_candidate_change_fraction ( resource $ann ) : float

The cascade candidate change fraction is a number between 0 and 1 determining how large a fraction the fann_get_MSE() value should change within fann_get_cascade_candidate_stagnation_epochs() during training of the candidate neurons, in order for the training not to stagnate. If the training stagnates, the training of the candidate neurons will be ended and the best candidate will be selected.

It means that if the MSE does not change by a fraction of fann_get_cascade_candidate_change_fraction() during a period of fann_get_cascade_candidate_stagnation_epochs(), the training of the candidate neurons is stopped because the training has stagnated.

If the cascade candidate change fraction is low, the candidate neurons will be trained more and if the fraction is high they will be trained less.

The default cascade candidate change fraction is 0.01, which is equalent to a 1% change in MSE.

PHP: fann_get_cascade_candidate_change_fraction - Manual Home of Manuel PHP  Contents Haut

Return Values

The cascade candidate change fraction, or FALSE on error.

PHP: fann_get_cascade_candidate_change_fraction - Manual Home of Manuel PHP  Contents Haut

See Also

Find a PHP function

English translation

You have asked to visit this site in English. For now, only the interface is translated, but not all the content yet.

If you want to help me in translations, your contribution is welcome. All you need to do is register on the site, and send me a message asking me to add you to the group of translators, which will give you the opportunity to translate the pages you want. A link at the bottom of each translated page indicates that you are the translator, and has a link to your profile.

Thank you in advance.

Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.fann-get-cascade-candidate-change-fraction.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Contents Haut