opennlp.tools.sentdetect
Class SentenceDetectorME

java.lang.Object
  opennlp.tools.sentdetect.SentenceDetectorME

All Implemented Interfaces:

SentenceDetector

public class SentenceDetectorME
extends Object
implements SentenceDetector

A sentence detector for splitting up raw text into sentences.

A maximum entropy model is used to evaluate the characters ".", "!", and "?" in a string to determine if they signify the end of a sentence.

Field Summary

static String	NO_SPLIT Constant indicates no sentence split.
static String	SPLIT Constant indicates a sentence split.

Constructor Summary

SentenceDetectorME(SentenceModel model)
Initializes the current instance.

SentenceDetectorME(SentenceModel model, Factory factory)
Deprecated. Use a SentenceDetectorFactory to extend SentenceDetector functionality.

Method Summary

double[]	getSentenceProbabilities() Returns the probabilities associated with the most recent calls to sentDetect().
String[]	sentDetect(String s) Detect sentences in a String.
Span[]	sentPosDetect(String s) Detect the position of the first words of sentences in a String.
static SentenceModel	train(String languageCode, ObjectStream<SentenceSample> samples, boolean useTokenEnd, Dictionary abbreviations) Deprecated. Use train(String, ObjectStream, SentenceDetectorFactory, TrainingParameters) and pass in af SentenceDetectorFactory.
static SentenceModel	train(String languageCode, ObjectStream<SentenceSample> samples, boolean useTokenEnd, Dictionary abbreviations, int cutoff, int iterations) Deprecated. Use train(String, ObjectStream, SentenceDetectorFactory, TrainingParameters) and pass in af SentenceDetectorFactory.
static SentenceModel	train(String languageCode, ObjectStream<SentenceSample> samples, boolean useTokenEnd, Dictionary abbreviations, TrainingParameters mlParams) Deprecated. Use train(String, ObjectStream, SentenceDetectorFactory, TrainingParameters) and pass in af SentenceDetectorFactory.
static SentenceModel	train(String languageCode, ObjectStream<SentenceSample> samples, SentenceDetectorFactory sdFactory, TrainingParameters mlParams)

Methods inherited from class java.lang.Object

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

Field Detail

SPLIT

public static final String SPLIT

Constant indicates a sentence split.

See Also:

Constant Field Values

NO_SPLIT

public static final String NO_SPLIT

Constant indicates no sentence split.

See Also:

Constant Field Values

Constructor Detail

SentenceDetectorME

public SentenceDetectorME(SentenceModel model)

Initializes the current instance.

Parameters:

model - the SentenceModel

SentenceDetectorME

public SentenceDetectorME(SentenceModel model,
                          Factory factory)

Deprecated. Use a SentenceDetectorFactory to extend SentenceDetector functionality.

Method Detail

sentDetect

public String[] sentDetect(String s)

Detect sentences in a String.

Specified by:

sentDetect in interface SentenceDetector

Parameters:

s - The string to be processed.

Returns:

A string array containing individual sentences as elements.

sentPosDetect

public Span[] sentPosDetect(String s)

Detect the position of the first words of sentences in a String.

Specified by:

sentPosDetect in interface SentenceDetector

Parameters:

s - The string to be processed.

Returns:

A integer array containing the positions of the end index of every sentence

getSentenceProbabilities

public double[] getSentenceProbabilities()

Returns the probabilities associated with the most recent calls to sentDetect().

Returns:

probability for each sentence returned for the most recent call to sentDetect. If not applicable an empty array is returned.

train

public static SentenceModel train(String languageCode,
                                  ObjectStream<SentenceSample> samples,
                                  boolean useTokenEnd,
                                  Dictionary abbreviations,
                                  TrainingParameters mlParams)
                           throws IOException

Deprecated. Use train(String, ObjectStream, SentenceDetectorFactory, TrainingParameters) and pass in af SentenceDetectorFactory.

Throws:

IOException

train

public static SentenceModel train(String languageCode,
                                  ObjectStream<SentenceSample> samples,
                                  SentenceDetectorFactory sdFactory,
                                  TrainingParameters mlParams)
                           throws IOException

Throws:

IOException

train

@Deprecated
public static SentenceModel train(String languageCode,
                                             ObjectStream<SentenceSample> samples,
                                             boolean useTokenEnd,
                                             Dictionary abbreviations,
                                             int cutoff,
                                             int iterations)
                           throws IOException

Deprecated. Use train(String, ObjectStream, SentenceDetectorFactory, TrainingParameters) and pass in af SentenceDetectorFactory.

Throws:

IOException

train

public static SentenceModel train(String languageCode,
                                  ObjectStream<SentenceSample> samples,
                                  boolean useTokenEnd,
                                  Dictionary abbreviations)
                           throws IOException

Deprecated. Use train(String, ObjectStream, SentenceDetectorFactory, TrainingParameters) and pass in af SentenceDetectorFactory.

Throws:

IOException