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See Release Notes

  • Bug fixes for general core bugs in 4.3.x will end 7 October 2024 (12 months).
  • Bug fixes for security issues in 4.3.x will end 21 April 2025 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.2.x is supported too.
   1  <?php
   2  
   3  declare(strict_types=1);
   4  
   5  namespace Phpml\SupportVectorMachine;
   6  
   7  abstract class Kernel
   8  {
   9      /**
  10       * u'*v.
  11       */
  12      public const LINEAR = 0;
  13  
  14      /**
  15       * (gamma*u'*v + coef0)^degree.
  16       */
  17      public const POLYNOMIAL = 1;
  18  
  19      /**
  20       * exp(-gamma*|u-v|^2).
  21       */
  22      public const RBF = 2;
  23  
  24      /**
  25       * tanh(gamma*u'*v + coef0).
  26       */
  27      public const SIGMOID = 3;
  28  }