org.apache.ctakes.relationextractor.ae.features

Class WordNetUtils

java.lang.Object

org.apache.ctakes.relationextractor.ae.features.WordNetUtils

public class WordNetUtils
extends Object

This is a wrapper for the MIT WordNet inteface that simplifies basic operations such as retrieving synonyms and hypernyms for a word.

Author:

dmitriy dligach

Field Summary

Fields

Modifier and Type	Field and Description
static String	wordNetPath

Constructor Summary

Constructors

Constructor and Description
WordNetUtils()

Method Summary

Modifier and Type	Method and Description
static edu.mit.jwi.IDictionary	getDictionary() Initialize WordNet dictionary.
static String	getHeadWord(String s) A simple way to get the head word of a phrase.
static HashSet<String>	getHyperHypernyms(edu.mit.jwi.IDictionary dict, String word, String posTag, boolean firstSenseOnly)
static HashSet<String>	getHypernyms(edu.mit.jwi.IDictionary dict, String word, String posTag, boolean firstSenseOnly) Retrieve a set of hypernyms for a word.
static List<String>	getStems(String word, String posTag, edu.mit.jwi.IDictionary iDictionary) Get a list of possible stems.
static HashSet<String>	getSynonyms(edu.mit.jwi.IDictionary iDictionary, String word, String posTag, boolean firstSenseOnly) Retrieve a set of synonyms for a word.

Methods inherited from class java.lang.Object

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

Field Detail

wordNetPath

public static final String wordNetPath

See Also:

Constant Field Values

Constructor Detail

WordNetUtils

public WordNetUtils()

Method Detail

getHeadWord

public static String getHeadWord(String s)

A simple way to get the head word of a phrase.

getDictionary

public static edu.mit.jwi.IDictionary getDictionary()
                                             throws IOException

Initialize WordNet dictionary.

Throws:

IOException

getStems

public static List<String> getStems(String word,
                                    String posTag,
                                    edu.mit.jwi.IDictionary iDictionary)

Get a list of possible stems. Assume we are looking up a noun.

getSynonyms

public static HashSet<String> getSynonyms(edu.mit.jwi.IDictionary iDictionary,
                                          String word,
                                          String posTag,
                                          boolean firstSenseOnly)

Retrieve a set of synonyms for a word. Use only the first sense if useFirstSense flag is true.

getHypernyms

public static HashSet<String> getHypernyms(edu.mit.jwi.IDictionary dict,
                                           String word,
                                           String posTag,
                                           boolean firstSenseOnly)

Retrieve a set of hypernyms for a word. Use only the first sense if useFirstSense flag is true.

getHyperHypernyms

public static HashSet<String> getHyperHypernyms(edu.mit.jwi.IDictionary dict,
                                                String word,
                                                String posTag,
                                                boolean firstSenseOnly)