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ShareBoostOptimizer.h
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 3 of the License, or
5  * (at your option) any later version.
6  *
7  * Written (W) 2012 Chiyuan Zhang
8  * Copyright (C) 2012 Chiyuan Zhang
9  */
10 
11 #ifndef SHAREBOOSTOPTIMIZER_H__
12 #define SHAREBOOSTOPTIMIZER_H__
13 
15 
16 namespace shogun
17 {
18 
21 {
22 public:
24  ShareBoostOptimizer(CShareBoost *sb, bool verbose=false)
25  :m_sb(sb), m_verbose(verbose) { SG_REF(m_sb); }
28 
30  void optimize();
31 private:
33  static float64_t lbfgs_evaluate(void *userdata, const float64_t *W, float64_t *grad, const int32_t n, const float64_t step);
34 
36  static int lbfgs_progress(
37  void *instance,
38  const float64_t *x,
39  const float64_t *g,
40  const float64_t fx,
41  const float64_t xnorm,
42  const float64_t gnorm,
43  const float64_t step,
44  int n,
45  int k,
46  int ls
47  );
48 
49  CShareBoost *m_sb;
50  bool m_verbose;
51 };
52 
53 } /* shogun */
54 
55 #endif /* end of include guard: SHAREBOOSTOPTIMIZER_H__ */
56 

SHOGUN Machine Learning Toolbox - Documentation