SortWord.cpp

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00001 /*
00002  * This program is free software; you can redistribute it and/or modify
00003  * it under the terms of the GNU General Public License as published by
00004  * the Free Software Foundation; either version 3 of the License, or
00005  * (at your option) any later version.
00006  *
00007  * Written (W) 1999-2008 Soeren Sonnenburg
00008  * Written (W) 1999-2008 Gunnar Raetsch
00009  * Copyright (C) 1999-2008 Fraunhofer Institute FIRST and Max-Planck-Society
00010  */
00011 
00012 #include "preproc/SortWord.h"
00013 #include "preproc/SimplePreProc.h"
00014 #include "features/Features.h"
00015 #include "lib/Mathematics.h"
00016 #include "features/WordFeatures.h"
00017 
00018 CSortWord::CSortWord()
00019 : CSimplePreProc<WORD>("SortWord", "SRTW")
00020 {
00021 }
00022 
00023 CSortWord::~CSortWord()
00024 {
00025 }
00026 
00028 bool CSortWord::init(CFeatures* f)
00029 {
00030     ASSERT(f->get_feature_class()==C_SIMPLE);
00031     ASSERT(f->get_feature_type()==F_WORD);
00032 
00033     return true;
00034 }
00035 
00037 void CSortWord::cleanup()
00038 {
00039 }
00040 
00042 bool CSortWord::load(FILE* f)
00043 {
00044     return false;
00045 }
00046 
00048 bool CSortWord::save(FILE* f)
00049 {
00050     return false;
00051 }
00052 
00056 WORD* CSortWord::apply_to_feature_matrix(CFeatures* f)
00057 {
00058     INT i;
00059     INT num_vec;
00060     INT num_feat;
00061     WORD* matrix=((CWordFeatures*) f)->get_feature_matrix(num_feat, num_vec);
00062 
00063     for (i=0; i<num_vec; i++)
00064     {
00065         WORD* vec=&matrix[i*num_feat];
00066         //CMath::qsort(vec, num_feat);
00067         CMath::radix_sort(vec, num_feat);
00068     }
00069     return matrix;
00070 }
00071 
00074 WORD* CSortWord::apply_to_feature_vector(WORD* f, INT& len)
00075 {
00076     WORD* vec=new WORD[len];
00077     INT i=0;
00078 
00079     for (i=0; i<len; i++)
00080         vec[i]=f[i];
00081 
00082     //CMath::qsort(vec, len);
00083     CMath::radix_sort(vec, len);
00084 
00085     return vec;
00086 }
00087 
00089 bool CSortWord::load_init_data(FILE* src)
00090 {
00091     return true;
00092 }
00093 
00095 bool CSortWord::save_init_data(FILE* dst)
00096 {
00097     return true;
00098 }

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