com.exalead.mot.components

Class CRFCPGenerator

java.lang.Object

com.exalead.gni.GNIObject

com.exalead.mot.components.CRFCPGenerator

public class CRFCPGenerator
extends com.exalead.gni.GNIObject

The CRF content predicate generator. The object is responsible of the generation of context predicates for an observation. Prefixes should *in nearly all cases* be unique and you should not be imbricated (they are keys to a Trie of predicates) !

Constructor Summary

Constructors

Constructor and Description
CRFCPGenerator() Instanciates a new CRFCPGenerator

Method Summary

Modifier and Type	Method and Description
protected boolean	_dump(java.lang.String resourcePath) Serialize the CRFCPGenerator to disk.
void	addMotTagPredicate(java.lang.String prefix, int offset, java.lang.String tag, boolean useTag, boolean useDisplay) Uses the annotation of given tag as predicate.
void	addTokenTypePredicate(java.lang.String prefix, int offset) Adds the token's type as predicate.
void	addTokenWordPredicate(java.lang.String prefix, int offset) Adds the token's word as predicate.
boolean	dump(java.lang.String resourcePath) Serialize the CRFCPGenerator to disk.
protected void	finalize()
protected void	init() Native initialisation.

Methods inherited from class com.exalead.gni.GNIObject

printInternalCppPointer

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CRFCPGenerator

public CRFCPGenerator()

Instanciates a new CRFCPGenerator

Method Detail

dump

public boolean dump(java.lang.String resourcePath)

Serialize the CRFCPGenerator to disk.

Parameters:

resourcePath - the path in which the file should be created.

Returns:

false if there was an error.

_dump

protected boolean _dump(java.lang.String resourcePath)

Serialize the CRFCPGenerator to disk.

Parameters:

resourcePath - the file.

Returns:

false if there was an error.

addTokenWordPredicate

public void addTokenWordPredicate(java.lang.String prefix,
                                  int offset)

Adds the token's word as predicate.

Parameters:

prefix - the key's prefix (should be unique, shouldn't be prefix of another prefix ex : prefix "wr" with word "at" and prefix "w" with word "rat" would give us two keys "wrat" for different predicates => this is BAD). Cannot be an empty string.

offset - the position to take into account relative to the observation's position in the sequence (observation's is 0).

addTokenTypePredicate

public void addTokenTypePredicate(java.lang.String prefix,
                                  int offset)

Adds the token's type as predicate.

Parameters:

prefix - the key's prefix (should be unique). Cannot be an empty string.

offset - the position to take into account relative to the observation's position in the sequence (observation's is 0).

addMotTagPredicate

public void addMotTagPredicate(java.lang.String prefix,
                               int offset,
                               java.lang.String tag,
                               boolean useTag,
                               boolean useDisplay)

Uses the annotation of given tag as predicate. Generally you should use at least one of tag or displayform with a prefix.

Parameters:

prefix - the key's prefix (should be unique). In some instances it is ok not to put a prefix (for example with some processors for which the tag can act as prefix).

offset - the position to take into account relative to the observation's position in the sequence (observation's is 0).

tag - the tag of the annotation which will generate the predicate.

useTag - also use annotation's tag ?.

useDisplay - also use annotation's displayform ?.

init

protected void init()

Native initialisation.

finalize

protected void finalize()

Overrides:

finalize in class java.lang.Object