[Summary view]

   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  }