PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // OptimizeOptionOracle.h 00004 // 00005 // Copyright (C) 2004 Olivier Delalleau 00006 // 00007 // Redistribution and use in source and binary forms, with or without 00008 // modification, are permitted provided that the following conditions are met: 00009 // 00010 // 1. Redistributions of source code must retain the above copyright 00011 // notice, this list of conditions and the following disclaimer. 00012 // 00013 // 2. Redistributions in binary form must reproduce the above copyright 00014 // notice, this list of conditions and the following disclaimer in the 00015 // documentation and/or other materials provided with the distribution. 00016 // 00017 // 3. The name of the authors may not be used to endorse or promote 00018 // products derived from this software without specific prior written 00019 // permission. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 // 00032 // This file is part of the PLearn library. For more information on the PLearn 00033 // library, go to the PLearn Web site at www.plearn.org 00034 00035 /* ******************************************************* 00036 * $Id: OptimizeOptionOracle.h 6863 2007-04-09 20:15:52Z saintmlx $ 00037 ******************************************************* */ 00038 00039 // Authors: Olivier Delalleau 00040 00043 #ifndef OptimizeOptionOracle_INC 00044 #define OptimizeOptionOracle_INC 00045 00046 #include <plearn_learners/hyper/OptionsOracle.h> 00047 00048 namespace PLearn { 00049 using namespace std; 00050 00051 class OptimizeOptionOracle: public OptionsOracle 00052 { 00053 00054 private: 00055 00056 typedef OptionsOracle inherited; 00057 00058 protected: 00059 00060 // ********************* 00061 // * protected options * 00062 // ********************* 00063 00064 string current_direction; 00065 real best; 00066 real best_objective; 00067 real lower_bound; 00068 int n_steps; 00069 real upper_bound; 00070 00071 public: 00072 00073 // ************************ 00074 // * public build options * 00075 // ************************ 00076 00077 real factor; 00078 int max_steps; 00079 real max_value; 00080 real min_value; 00081 real relative_precision; 00082 string option; 00083 string start_direction; 00084 real start_value; 00085 00086 // **************** 00087 // * Constructors * 00088 // **************** 00089 00090 // Default constructor, make sure the implementation in the .cc 00091 // initializes all fields to reasonable default values. 00092 OptimizeOptionOracle(); 00093 00094 00095 // ****************** 00096 // * OptionsOracle methods * 00097 // ****************** 00098 00099 private: 00100 00102 void build_(); 00103 00104 protected: 00105 00107 static void declareOptions(OptionList& ol); 00108 00109 public: 00110 00112 virtual TVec<string> getOptionNames() const; 00113 virtual TVec<string> generateNextTrial(const TVec<string>& older_trial, real obtained_objective); 00114 virtual void forget(); 00115 00116 // Simply calls inherited::build() then build_() 00117 virtual void build(); 00118 00120 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00121 00123 PLEARN_DECLARE_OBJECT(OptimizeOptionOracle); 00124 00125 }; 00126 00127 // Declares a few other classes and functions related to this class 00128 DECLARE_OBJECT_PTR(OptimizeOptionOracle); 00129 00130 } // end of namespace PLearn 00131 00132 #endif 00133 00134 00135 /* 00136 Local Variables: 00137 mode:c++ 00138 c-basic-offset:4 00139 c-file-style:"stroustrup" 00140 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00141 indent-tabs-mode:nil 00142 fill-column:79 00143 End: 00144 */ 00145 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :