Class PreProc defines a preprocessor interface.
Preprocessors are transformation functions that don't change the domain of the input features. These functions can be applied in-place if the input features fit in memory or can be applied on-the-fly when (depending on features) a feature caching strategy is applied. However, if the individual features are in 
they have to stay in although the dimensionality of the feature vectors is allowed change.
As preprocessors might need a certain initialization they may expect that the init() function is called before anything else. The actual preprocessing is feature type dependent and thus coordinated in the sub-classes, cf. e.g. CSimplePreProc .
Definition at line 57 of file PreProc.h.
Public Member Functions | |
| CPreProc (const char *name, const char *id) | |
| virtual | ~CPreProc () |
| virtual bool | init (CFeatures *f)=0 |
| initialize preprocessor from features | |
| virtual void | cleanup ()=0 |
| cleanup | |
| virtual EFeatureType | get_feature_type ()=0 |
| virtual EFeatureClass | get_feature_class ()=0 |
| virtual const char * | get_name () const |
| return the name of the preprocessor | |
| const char * | get_id () const |
| return a FOUR letter id of the preprocessor | |
Protected Attributes | |
| const char * | preproc_name |
| const char * | preproc_id |
| CPreProc | ( | const char * | name, | |
| const char * | id | |||
| ) |
constructor
| name | preprocessor's name | |
| id | preprocessor's id |
Definition at line 17 of file PreProc.cpp.
| ~CPreProc | ( | ) | [virtual] |
Definition at line 23 of file PreProc.cpp.
| virtual void cleanup | ( | ) | [pure virtual] |
cleanup
Implemented in CDecompressString< ST >, CLogPlusOne, CNormDerivativeLem3, CNormOne, CPCACut, CPruneVarSubMean, CSortUlongString, and CSortWordString.
| virtual EFeatureClass get_feature_class | ( | ) | [pure virtual] |
return feature class like Sparse,Simple,...
Implemented in CSimplePreProc< ST >, CSparsePreProc< ST >, CStringPreProc< ST >, CSimplePreProc< float64_t >, CStringPreProc< uint16_t >, and CStringPreProc< uint64_t >.
| virtual EFeatureType get_feature_type | ( | ) | [pure virtual] |
return feature type with which objects derived from CPreProc can deal
Implemented in CSimplePreProc< ST >, CStringPreProc< ST >, CSimplePreProc< float64_t >, CStringPreProc< uint16_t >, CStringPreProc< uint64_t >, CSimplePreProc< ST >, CSimplePreProc< ST >, CSimplePreProc< ST >, CSimplePreProc< ST >, CSimplePreProc< ST >, CSimplePreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, CStringPreProc< ST >, and CStringPreProc< ST >.
| const char* get_id | ( | ) | const |
| virtual const char* get_name | ( | void | ) | const [virtual] |
| virtual bool init | ( | CFeatures * | f | ) | [pure virtual] |
initialize preprocessor from features
Implemented in CDecompressString< ST >, CLogPlusOne, CNormDerivativeLem3, CNormOne, CPCACut, CPruneVarSubMean, CSortUlongString, and CSortWordString.
const char* preproc_id [protected] |
const char* preproc_name [protected] |
