de.linguatools.disco

Class TextSimilarity

java.lang.Object

de.linguatools.disco.TextSimilarity

public class TextSimilarity
extends java.lang.Object

This class provides methods to compute the semantic similarity between two short texts, i.e. phrases, sentences or paragraphs.

Constructor Summary

Constructors

Constructor and Description
TextSimilarity()

Method Summary

Modifier and Type	Method and Description
static float	directedTextSimilarity(java.lang.String text, java.lang.String hypothesis, DISCO disco, DISCO.SimilarityMeasure similarityMeasure) Compute the semantic similarity of text and hypothesis according to the algorithm given in Jijkoun & De Rijke (2005): "Recognizing Textual Entailment Using Lexical Similarity". The method tests if the hypothesis is licensed by the text.
static float	textSimilarity(java.lang.String text1, java.lang.String text2, DISCO disco, DISCO.SimilarityMeasure similarityMeasure) Computes the semantic similarity between the two texts as an average of both directed text similarities.

Methods inherited from class java.lang.Object

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

Constructor Detail

TextSimilarity

public TextSimilarity()

Method Detail

directedTextSimilarity

public static float directedTextSimilarity(java.lang.String text,
                                           java.lang.String hypothesis,
                                           DISCO disco,
                                           DISCO.SimilarityMeasure similarityMeasure)
                                    throws CorruptConfigFileException,
                                           java.io.IOException

Compute the semantic similarity of text and hypothesis according to the algorithm given in Jijkoun & De Rijke (2005): "Recognizing Textual Entailment Using Lexical Similarity".
The method tests if the hypothesis is licensed by the text.

Parameters:

text - a short piece of text

hypothesis - another short text to be checked against the first one

disco -

similarityMeasure - use SimilarityMeasure.COSINE with word spaces imported from word2vec.

Returns:

similarity value between 0.0 and 1.0.

Throws:

CorruptConfigFileException

java.io.IOException

textSimilarity

public static float textSimilarity(java.lang.String text1,
                                   java.lang.String text2,
                                   DISCO disco,
                                   DISCO.SimilarityMeasure similarityMeasure)
                            throws CorruptConfigFileException,
                                   java.io.IOException

Computes the semantic similarity between the two texts as an average of both directed text similarities.

Parameters:

text1 - a short piece of text

text2 - another short piece of text

disco - a DISCO word space

similarityMeasure - use SimilarityMeasure.COSINE with word spaces imported from word2vec.

Returns:

similarity value between 0 and 1

Throws:

CorruptConfigFileException

java.io.IOException