net.ontopia.topicmaps.classify

Class TermDatabase

java.lang.Object

net.ontopia.topicmaps.classify.TermDatabase

public class TermDatabase
extends Object

PUBLIC: A collection of terms representing the result of classifying a piece of content. The terms have scores indicating their importance within the content, and variants, indicating different spellings for the same term within the content.

Use SimpleClassifier to create TermDatabase objects.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,Token>	delimiter_terms
protected Map<String,Term>	terms
protected Map<String,Variant>	variants

Method Summary

Modifier and Type	Method and Description
protected Token	createDelimiter(String delimiter)
protected Term	createTerm(String stem)
protected Variant	createVariant(String variant)
void	dump() INTERNAL: Writes the contents of the term database out to System.out for debugging purposes.
void	dump(int firstN) INTERNAL: Writes the contents of the term database out to System.out for debugging purposes.
protected double	getMaxScore()
Term	getTerm(String stem) PUBLIC: Looks up a particular term by its stem.
int	getTermCount() PUBLIC: Returns the number of terms in the database.
Collection<Term>	getTerms() PUBLIC: Returns all terms found in the classified content.
Term[]	getTermsByRank() PUBLIC: Returns all terms found in the classified content sorted by score.
Variant	getVariant(String variant) PUBLIC: Looks up a particular variant by its string representation.
protected void	mergeTerms(Term t1, Term t2)

Methods inherited from class java.lang.Object

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

Field Detail

terms

protected Map<String,Term> terms

variants

protected Map<String,Variant> variants

delimiter_terms

protected Map<String,Token> delimiter_terms

Method Detail

getTerms

public Collection<Term> getTerms()

PUBLIC: Returns all terms found in the classified content.

getTermsByRank

public Term[] getTermsByRank()

PUBLIC: Returns all terms found in the classified content sorted by score.

getTermCount

public int getTermCount()

PUBLIC: Returns the number of terms in the database.

getTerm

public Term getTerm(String stem)

PUBLIC: Looks up a particular term by its stem. Returns null if no term is found.

getVariant

public Variant getVariant(String variant)

PUBLIC: Looks up a particular variant by its string representation. Returns null if no variant is found.

createDelimiter

protected Token createDelimiter(String delimiter)

mergeTerms

protected void mergeTerms(Term t1,
                          Term t2)

createTerm

protected Term createTerm(String stem)

getMaxScore

protected double getMaxScore()

createVariant

protected Variant createVariant(String variant)

dump

public void dump()

INTERNAL: Writes the contents of the term database out to System.out for debugging purposes.

dump

public void dump(int firstN)

INTERNAL: Writes the contents of the term database out to System.out for debugging purposes.

Parameters:

firstN - how many terms to output