SHOGUN  v3.2.0
VwLearner.h
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1 /*
2  * Copyright (c) 2009 Yahoo! Inc. All rights reserved. The copyrights
3  * embodied in the content of this file are licensed under the BSD
4  * (revised) open source license.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * Written (W) 2011 Shashwat Lal Das
12  * Adaptation of Vowpal Wabbit v5.1.
13  * Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society.
14  */
15 
16 #ifndef _VW_LEARNER_H__
17 #define _VW_LEARNER_H__
18 
19 #include <shogun/base/SGObject.h>
20 #include <shogun/base/Parameter.h>
23 
24 namespace shogun
25 {
33 class CVwLearner: public CSGObject
34 {
35 public:
40  : CSGObject(), reg(NULL), env(NULL)
41  {
43  }
44 
51  CVwLearner(CVwRegressor* regressor, CVwEnvironment* vw_env)
52  : CSGObject(), reg(regressor), env(vw_env)
53  {
54  SG_REF(reg);
55  SG_REF(env);
57  }
58 
62  virtual ~CVwLearner()
63  {
64  if (reg)
65  SG_UNREF(reg);
66  if (env)
67  SG_UNREF(env);
68  }
69 
74  {
75  SG_ADD((CSGObject**) &reg, "vw_regressor", "Regressor object",
77  SG_ADD((CSGObject**) &env, "vw_env", "Environment",
79  }
80 
87  virtual void train(VwExample* &ex, float32_t update) = 0;
88 
94  virtual const char* get_name() const { return "VwLearner"; }
95 
96 protected:
101 };
102 }
103 #endif // _VW_LEARNER_H__
Class CVwEnvironment is the environment used by VW.
Definition: VwEnvironment.h:39
#define SG_UNREF(x)
Definition: SGRefObject.h:35
virtual const char * get_name() const
Definition: VwLearner.h:94
CVwRegressor * reg
Regressor object that will be used for getting updates
Definition: VwLearner.h:98
virtual ~CVwLearner()
Definition: VwLearner.h:62
Class SGObject is the base class of all shogun objects.
Definition: SGObject.h:102
Base class for all VW learners
Definition: VwLearner.h:33
#define SG_REF(x)
Definition: SGRefObject.h:34
Regressor used by VW
Definition: VwRegressor.h:35
virtual void train(VwExample *&ex, float32_t update)=0
Example class for VW
Definition: vw_example.h:56
void register_learner_params()
Definition: VwLearner.h:73
float float32_t
Definition: common.h:47
all of classes and functions are contained in the shogun namespace
Definition: class_list.h:16
CVwEnvironment * env
Environment
Definition: VwLearner.h:100
void(* update)(float *foo, float bar)
Definition: JLCoverTree.h:526
#define SG_ADD(...)
Definition: SGObject.h:71
CVwLearner(CVwRegressor *regressor, CVwEnvironment *vw_env)
Definition: VwLearner.h:51

SHOGUN Machine Learning Toolbox - Documentation