Public Member Functions | |
CLogPlusOne () | |
virtual | ~CLogPlusOne () |
virtual bool | init (CFeatures *f) |
initialize preprocessor from features | |
virtual bool | load_init_data (FILE *src) |
initialize preprocessor from file | |
virtual bool | save_init_data (FILE *dst) |
save init-data (like transforamtion matrices etc) to file | |
virtual void | cleanup () |
cleanup | |
virtual bool | load (FILE *f) |
initialize preprocessor from file | |
virtual bool | save (FILE *f) |
save preprocessor init-data to file | |
virtual float64_t * | apply_to_feature_matrix (CFeatures *f) |
virtual float64_t * | apply_to_feature_vector (float64_t *f, int32_t &len) |
It therefore does not need any initialization. It is most useful in situations where the inputs are counts: When one compares differences of small counts any difference may matter a lot, while small differences in large counts don't. This is what this log transformation controls for.
Definition at line 30 of file LogPlusOne.h.
CLogPlusOne::CLogPlusOne | ( | ) |
default constructor
Definition at line 17 of file LogPlusOne.cpp.
CLogPlusOne::~CLogPlusOne | ( | ) | [virtual] |
Definition at line 23 of file LogPlusOne.cpp.
apply preproc on feature matrix result in feature matrix return pointer to feature_matrix, i.e. f->get_feature_matrix();
apply preproc on feature matrix result in feature matrix return pointer to feature_matrix, i.e. f->get_feature_matrix();
Implements CSimplePreProc< float64_t >.
Definition at line 56 of file LogPlusOne.cpp.
apply preproc on single feature vector result in feature matrix
apply preproc on single feature vector result in feature matrix
Implements CSimplePreProc< float64_t >.
Definition at line 75 of file LogPlusOne.cpp.
void CLogPlusOne::cleanup | ( | ) | [virtual] |
cleanup
clean up allocated memory
Implements CPreProc.
Definition at line 37 of file LogPlusOne.cpp.
bool CLogPlusOne::init | ( | CFeatures * | f | ) | [virtual] |
initialize preprocessor from features
Implements CPreProc.
Definition at line 28 of file LogPlusOne.cpp.
bool CLogPlusOne::load | ( | FILE * | f | ) | [virtual] |
bool CLogPlusOne::load_init_data | ( | FILE * | src | ) | [virtual] |
initialize preprocessor from file
Implements CPreProc.
Definition at line 87 of file LogPlusOne.cpp.
bool CLogPlusOne::save | ( | FILE * | f | ) | [virtual] |
bool CLogPlusOne::save_init_data | ( | FILE * | dst | ) | [virtual] |
save init-data (like transforamtion matrices etc) to file
Implements CPreProc.
Definition at line 93 of file LogPlusOne.cpp.