Preprocessor.h

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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) 1999-2009 Soeren Sonnenburg
00008  * Written (W) 1999-2008 Gunnar Raetsch
00009  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
00010  */
00011 
00012 #ifndef PREPROCESSOR_H_
00013 #define PREPROCESSOR_H_
00014 
00015 #include <shogun/lib/common.h>
00016 #include <shogun/base/SGObject.h>
00017 #include <shogun/features/FeatureTypes.h>
00018 #include <shogun/features/Features.h>
00019 
00020 namespace shogun
00021 {
00022 
00023 class CFeatures;
00024 
00030 enum EPreprocessorType
00031 {
00032     P_UNKNOWN=0,
00033     P_NORMONE=10,
00034     P_LOGPLUSONE=20,
00035     P_SORTWORDSTRING=30,
00036     P_SORTULONGSTRING=40,
00037     P_SORTWORD=50,
00038     P_PRUNEVARSUBMEAN=60,
00039     P_DECOMPRESSSTRING=70,
00040     P_DECOMPRESSCHARSTRING=80,
00041     P_DECOMPRESSBYTESTRING=90,
00042     P_DECOMPRESSWORDSTRING=100,
00043     P_DECOMPRESSULONGSTRING=110,
00044     P_RANDOMFOURIERGAUSS=120,
00045     P_PCA=130,
00046     P_KERNELPCA=140,
00047     P_NORMDERIVATIVELEM3=150,
00048     P_DIMENSIONREDUCTIONPREPROCESSOR=160,
00049     P_SUMONE=170,
00050     P_HOMOGENEOUSKERNELMAP = 180,
00051     P_PNORM = 190
00052 };
00053 
00068 class CPreprocessor : public CSGObject
00069 {
00070 public:
00072     CPreprocessor() : CSGObject()
00073     {
00074     };
00075 
00077     virtual ~CPreprocessor()
00078     {
00079     }
00080 
00082     virtual bool init(CFeatures* features)=0;
00083 
00085     virtual void cleanup()=0;
00086 
00088     virtual EFeatureType get_feature_type()=0;
00089 
00091     virtual EFeatureClass get_feature_class()=0;
00092 
00094     virtual EPreprocessorType get_type() const=0;
00095 };
00096 }
00097 #endif // PREPROCESSOR_H_
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