PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // IdentityPLearner.cc 00004 // 00005 // Copyright (C) 2009 Réjean Ducharme 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 // Authors: Réjean Ducharme 00036 00040 #include "IdentityPLearner.h" 00041 00042 namespace PLearn { 00043 using namespace std; 00044 00045 PLEARN_IMPLEMENT_OBJECT( 00046 IdentityPLearner, 00047 "Simple learner that outputs its inputs", 00048 "Simple learner that outputs its inputs"); 00049 00050 IdentityPLearner::IdentityPLearner() 00051 {} 00052 00053 int IdentityPLearner::outputsize() const 00054 { 00055 return inputsize(); 00056 } 00057 00058 // Nothing to do! 00059 void IdentityPLearner::train() 00060 {} 00061 00062 00063 void IdentityPLearner::computeOutput(const Vec& input, Vec& output) const 00064 { 00065 // Copy input to output vector 00066 int nout = inputsize(); 00067 output.resize(nout); 00068 output << input; 00069 } 00070 00071 void IdentityPLearner::computeCostsFromOutputs(const Vec& input, const Vec& output, const Vec& target, Vec& costs) const 00072 { 00073 costs.resize(0); 00074 } 00075 00076 TVec<string> IdentityPLearner::getTestCostNames() const 00077 { 00078 return TVec<string>(); 00079 } 00080 00081 TVec<string> IdentityPLearner::getTrainCostNames() const 00082 { 00083 return TVec<string>(); 00084 } 00085 00086 00087 } // end of namespace PLearn 00088 00089 00090 /* 00091 Local Variables: 00092 mode:c++ 00093 c-basic-offset:4 00094 c-file-style:"stroustrup" 00095 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00096 indent-tabs-mode:nil 00097 fill-column:79 00098 End: 00099 */ 00100 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :