org.eml.sir.util
Class SmesStemmer

java.lang.Object
  org.eml.sir.util.Stemmer
      org.eml.sir.util.SmesStemmer

All Implemented Interfaces:

java.io.Serializable

public class SmesStemmer

extends Stemmer

Stemmer refering to SMES (lexicon based).

Author:

Hendrik Niederlich (EML-R)

See Also:

Serialized Form

Constructor Summary

SmesStemmer()
Create a new instance of SmesStemmer.

SmesStemmer(java.lang.String imageFile)
Create a new instance of SmesStemmer.

Method Summary

java.util.HashMap	stem(java.util.ArrayList words) Stem many words.
java.lang.String	stem(java.lang.String word) Stem a word.

Methods inherited from class java.lang.Object

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

Constructor Detail

SmesStemmer

public SmesStemmer(java.lang.String imageFile)

Create a new instance of SmesStemmer.

SmesStemmer

public SmesStemmer()

Create a new instance of SmesStemmer.

Method Detail

stem

public java.lang.String stem(java.lang.String word)

Stem a word. If no stem can be computed the original String becomes stem.

Specified by:

stem in class Stemmer

Returns:

The stem of the word. A new String containing the word itself if SMES was not able to stem it.

stem

public java.util.HashMap stem(java.util.ArrayList words)

Stem many words. Words should consist of characters and hyphens only. Espacially words that contain numbers or white spaces will cause problems.

Specified by:

stem in class Stemmer

Parameters:

words - ArrayList of Strings, each a word to be stemmed.

Returns:

HashMap with words as keys and their particular stems as the values. Null if problems occured while using SMES.