29 lines
393 B
PHP
29 lines
393 B
PHP
<?php
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declare(strict_types=1);
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namespace Phpml\SupportVectorMachine;
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abstract class Kernel
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{
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/**
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* u'*v.
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*/
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public const LINEAR = 0;
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/**
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* (gamma*u'*v + coef0)^degree.
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*/
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public const POLYNOMIAL = 1;
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/**
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* exp(-gamma*|u-v|^2).
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*/
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public const RBF = 2;
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/**
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* tanh(gamma*u'*v + coef0).
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*/
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public const SIGMOID = 3;
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}
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