kernel.h

来自「支持向量机工具箱」· C头文件 代码 · 共 30 行

/* --------------------------------------------------------------------
 Provides a function for evaluation of kernel function. This function 
 is used in smo.c, svmclass2.c,etc.

 Statistical Pattern Recognition Toolbox, Vojtech Franc, Vaclav Hlavac
 (c) Czech Technical University Prague, http://cmp.felk.cvut.cz

 Modifications:
 14-November-2001, V.Franc, sigmoid kernel
 22-September-2001, V. Franc, created.
-------------------------------------------------------------------- */

/* --- Exported global variables ----------------------------------- */

extern double *dataA;   /* pointer at the fist patterns */
extern double *dataB;   /* pointer at the second patterns */
extern long dim;        /* dimension of patterns */
extern int ker;         /* kernel type (0 - linear, 1 - polynom, 2 - rbf */
extern double arg1;     /* 1st argument of the kernel */
extern double arg2;     /* 2nd argument of the kernel */
extern long ker_cnt;    /* number of cernel evaluations */

/* --- Exported functions ------------------------------------------ */

/* --------------------------------------------------------------------
 Computes kernel function for a-th (dataA) and b-th (dataB)
-------------------------------------------------------------------- */
extern double kernel( long a, long b );