edu.stanford.nlp.ie
Class NERClassifierCombiner

java.lang.Object
  edu.stanford.nlp.ie.AbstractSequenceClassifier<IN>
      edu.stanford.nlp.ie.ClassifierCombiner<CoreLabel>
          edu.stanford.nlp.ie.NERClassifierCombiner

All Implemented Interfaces:

Function<java.lang.String,java.lang.String>

public class NERClassifierCombiner
extends ClassifierCombiner<CoreLabel>

Subclass of ClassifierCombiner that behaves like a NER, by copying the AnswerAnnotation labels to NERAnnotation Also, it runs an additional classifier (QuantifiableEntityNormalizer) to recognize numeric entities

Author:

Mihai Surdeanu

Field Summary

static boolean	APPLY_NUMERIC_CLASSIFIERS_DEFAULT
static java.lang.String	APPLY_NUMERIC_CLASSIFIERS_PROPERTY

Fields inherited from class edu.stanford.nlp.ie.AbstractSequenceClassifier

classIndex, featureFactory, flags, knownLCWords, pad, windowSize

Constructor Summary

NERClassifierCombiner(AbstractSequenceClassifier<CoreLabel>... classifiers)

NERClassifierCombiner(boolean applyNumericClassifiers, boolean useSUTime, AbstractSequenceClassifier<CoreLabel>... classifiers)

NERClassifierCombiner(boolean applyNumericClassifiers, boolean useSUTime, java.util.Properties nscProps, java.lang.String... loadPaths)

NERClassifierCombiner(boolean applyNumericClassifiers, boolean useSUTime, java.lang.String... loadPaths)

NERClassifierCombiner(java.util.Properties props)

NERClassifierCombiner(java.lang.String... loadPaths)

Method Summary

java.util.List<CoreLabel>	classify(java.util.List<CoreLabel> tokens) Generates the AnswerAnnotation labels of the combined model for the given tokens, storing them in place in the tokens.
java.util.List<CoreLabel>	classifyWithGlobalInformation(java.util.List<CoreLabel> tokens, CoreMap document, CoreMap sentence) Classify a List of something that extends CoreMap using as additional information whatever is stored in the document and sentence.
boolean	isApplyNumericClassifiers()

Methods inherited from class edu.stanford.nlp.ie.ClassifierCombiner

labels, loadClassifier, loadClassifierFromPath, main, printProbsDocument, serializeClassifier, train

Methods inherited from class edu.stanford.nlp.ie.AbstractSequenceClassifier

apply, backgroundSymbol, classify, classifyAndWriteAnswers, classifyAndWriteAnswers, classifyAndWriteAnswers, classifyAndWriteAnswers, classifyAndWriteAnswers, classifyAndWriteAnswers, classifyAndWriteAnswers, classifyAndWriteAnswersKBest, classifyAndWriteAnswersKBest, classifyAndWriteViterbiSearchGraph, classifyFile, classifyKBest, classifyRaw, classifySentence, classifySentenceWithGlobalInformation, classifyStdin, classifyStdin, classifyToCharacterOffsets, classifyToString, classifyToString, classifyWithInlineXML, countResults, countResults, countResultsIOB, countResultsIOB2, defaultReaderAndWriter, getSampler, getSequenceModel, getViterbiSearchGraph, loadClassifier, loadClassifier, loadClassifier, loadClassifier, loadClassifier, loadClassifier, loadClassifierNoExceptions, loadClassifierNoExceptions, loadClassifierNoExceptions, loadClassifierNoExceptions, loadClassifierNoExceptions, loadJarClassifier, makeObjectBankFromFile, makeObjectBankFromFiles, makeObjectBankFromFiles, makeObjectBankFromFiles, makeObjectBankFromReader, makeObjectBankFromString, makePlainTextReaderAndWriter, makeReaderAndWriter, plainTextReaderAndWriter, printFeatureLists, printFeatures, printProbs, printProbsDocuments, printResults, reinit, segmentString, segmentString, tallyOneEntityIOB, train, train, train, train, train, train, windowSize, writeAnswers

Methods inherited from class java.lang.Object

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

Field Detail

APPLY_NUMERIC_CLASSIFIERS_DEFAULT

public static final boolean APPLY_NUMERIC_CLASSIFIERS_DEFAULT

See Also:

Constant Field Values

APPLY_NUMERIC_CLASSIFIERS_PROPERTY

public static final java.lang.String APPLY_NUMERIC_CLASSIFIERS_PROPERTY

See Also:

Constant Field Values

Constructor Detail

NERClassifierCombiner

public NERClassifierCombiner(java.util.Properties props)
                      throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

NERClassifierCombiner

public NERClassifierCombiner(java.lang.String... loadPaths)
                      throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

NERClassifierCombiner

public NERClassifierCombiner(boolean applyNumericClassifiers,
                             boolean useSUTime,
                             java.lang.String... loadPaths)
                      throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

NERClassifierCombiner

public NERClassifierCombiner(boolean applyNumericClassifiers,
                             boolean useSUTime,
                             java.util.Properties nscProps,
                             java.lang.String... loadPaths)
                      throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

NERClassifierCombiner

public NERClassifierCombiner(AbstractSequenceClassifier<CoreLabel>... classifiers)
                      throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

NERClassifierCombiner

public NERClassifierCombiner(boolean applyNumericClassifiers,
                             boolean useSUTime,
                             AbstractSequenceClassifier<CoreLabel>... classifiers)
                      throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

Method Detail

isApplyNumericClassifiers

public boolean isApplyNumericClassifiers()

classify

public java.util.List<CoreLabel> classify(java.util.List<CoreLabel> tokens)

Description copied from class: ClassifierCombiner

Generates the AnswerAnnotation labels of the combined model for the given tokens, storing them in place in the tokens.

Overrides:

classify in class ClassifierCombiner<CoreLabel>

Parameters:

tokens - A List of IN

Returns:

The passed in parameters, which will have the AnswerAnnotation field added/overwritten

classifyWithGlobalInformation

public java.util.List<CoreLabel> classifyWithGlobalInformation(java.util.List<CoreLabel> tokens,
                                                               CoreMap document,
                                                               CoreMap sentence)

Description copied from class: AbstractSequenceClassifier

Classify a List of something that extends CoreMap using as additional information whatever is stored in the document and sentence. This is needed for SUTime (NumberSequenceClassifier), which requires the document date to resolve relative dates.

Overrides:

classifyWithGlobalInformation in class ClassifierCombiner<CoreLabel>

Returns:

Classified version of the input tokenSequence