Package opennlp.tools.sentdetect

Class DefaultSDContextGenerator

java.lang.Object

opennlp.tools.sentdetect.DefaultSDContextGenerator

All Implemented Interfaces:

SDContextGenerator

Direct Known Subclasses:

SentenceContextGenerator

public class DefaultSDContextGenerator
extends Object
implements SDContextGenerator

Generate event contexts for maxent decisions for sentence detection.

Constructor Summary

Constructors

Constructor	Description
DefaultSDContextGenerator(char[] eosCharacters)	Creates a new instance with no induced abbreviations.
DefaultSDContextGenerator(Set<String> inducedAbbreviations, char[] eosCharacters)	Creates a new SDContextGenerator instance which uses the set of induced abbreviations.

Method Summary

Modifier and Type	Method	Description
String[]	getContext(CharSequence sb, int position)	Returns an array of contextual features for the potential sentence boundary at the specified position within the specified string buffer.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultSDContextGenerator

public DefaultSDContextGenerator(char[] eosCharacters)

Creates a new instance with no induced abbreviations.

Parameters:

eosCharacters - The characters to be used to detect sentence endings.

DefaultSDContextGenerator

public DefaultSDContextGenerator(Set<String> inducedAbbreviations,
                                 char[] eosCharacters)

Creates a new SDContextGenerator instance which uses the set of induced abbreviations.

Parameters:

inducedAbbreviations - a Set of Strings representing induced abbreviations in the training data. Example: "Mr."

eosCharacters - The characters to be used to detect sentence endings.

Method Detail

getContext

public String[] getContext(CharSequence sb,
                           int position)

Description copied from interface: SDContextGenerator

Returns an array of contextual features for the potential sentence boundary at the specified position within the specified string buffer.

Specified by:

getContext in interface SDContextGenerator

Parameters:

sb - The String for which sentences are being determined.

position - An index into the specified string buffer when a sentence boundary may occur.

Returns:

an array of contextual features for the potential sentence boundary at the specified position within the specified string buffer.