PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // SeparateInputVMatrix.cc 00004 // 00005 // Copyright (C) 2005 Hugo Larochelle 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: SeparateInputVMatrix.cc 8617 2008-03-03 17:45:54Z nouiz $ 00037 ******************************************************* */ 00038 00039 // Authors: Hugo Larochelle 00040 00044 #include "SeparateInputVMatrix.h" 00045 00046 namespace PLearn { 00047 using namespace std; 00048 00050 // SeparateInputVMatrix // 00052 SeparateInputVMatrix::SeparateInputVMatrix() 00053 : nsep(1) 00054 { 00055 00056 // build_(); 00057 } 00058 00059 PLEARN_IMPLEMENT_OBJECT(SeparateInputVMatrix, 00060 "Separates the input in nsep parts and distributes them on different rows.", 00061 "Also copies target and weight parts for each of these rows." 00062 ); 00063 00064 SeparateInputVMatrix::SeparateInputVMatrix(VMat the_source, int the_nsep) 00065 : inherited(the_source), nsep(the_nsep) 00066 { 00067 build_(); 00068 } 00069 00070 00072 // declareOptions // 00074 void SeparateInputVMatrix::declareOptions(OptionList& ol) 00075 { 00076 declareOption(ol, "nsep", &SeparateInputVMatrix::nsep, OptionBase::buildoption, 00077 "Number of separations of the input. The input size has to be\n" 00078 "a multiple of that value."); 00079 00080 inherited::declareOptions(ol); 00081 } 00082 00084 // build // 00086 void SeparateInputVMatrix::build() 00087 { 00088 // ### Nothing to add here, simply calls build_ 00089 inherited::build(); 00090 build_(); 00091 } 00092 00094 // build_ // 00096 void SeparateInputVMatrix::build_() 00097 { 00098 if (source) { 00099 updateMtime(source); 00100 if(source->inputsize() % nsep != 0) 00101 PLERROR("In SeparateInputVMatrix::build_(): inputsize=%d of source vmat should be a multiple of nsep=%d",source->inputsize(),nsep); 00102 inputsize_ = source->inputsize()/nsep; 00103 targetsize_ = source->targetsize(); 00104 weightsize_ = source->weightsize(); 00105 //fieldinfos = source->fieldinfos; 00106 length_ = source.length() * nsep; 00107 width_ = inputsize_+targetsize_+weightsize_; 00108 sourcerow.resize(source->width()); 00109 } 00110 } 00111 00113 // getNewRow // 00115 void SeparateInputVMatrix::getNewRow(int i, const Vec& v) const 00116 { 00117 source->getRow(i/nsep,sourcerow); 00118 v.subVec(0,inputsize_) << sourcerow.subVec(i%nsep * inputsize_, inputsize_); 00119 v.subVec(inputsize_,targetsize_+weightsize_) << 00120 sourcerow.subVec(source->inputsize(),targetsize_+weightsize_); 00121 } 00122 00124 // makeDeepCopyFromShallowCopy // 00126 void SeparateInputVMatrix::makeDeepCopyFromShallowCopy(CopiesMap& copies) 00127 { 00128 inherited::makeDeepCopyFromShallowCopy(copies); 00129 00130 // ### Call deepCopyField on all "pointer-like" fields 00131 // ### that you wish to be deepCopied rather than 00132 // ### shallow-copied. 00133 // ### ex: 00134 // deepCopyField(trainvec, copies); 00135 00136 // ### Remove this line when you have fully implemented this method. 00137 //PLERROR("SeparateInputVMatrix::makeDeepCopyFromShallowCopy not fully (correctly) implemented yet!"); 00138 } 00139 00140 } // end of namespace PLearn 00141 00142 00143 /* 00144 Local Variables: 00145 mode:c++ 00146 c-basic-offset:4 00147 c-file-style:"stroustrup" 00148 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00149 indent-tabs-mode:nil 00150 fill-column:79 00151 End: 00152 */ 00153 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :