de.aitools.ir.fingerprinting.representer
Class PrefixClassFunction

java.lang.Object
  de.aitools.ir.retrievalmodels.representer.AbstractRepresenter<java.lang.String,Vector>
      de.aitools.ir.fingerprinting.representer.PrefixClassFunction

All Implemented Interfaces:

Representer<java.lang.String,Vector>, java.io.Serializable

public class PrefixClassFunction
extends AbstractRepresenter<java.lang.String,Vector>

Version:

aitools 3.0

Author:

martin.trenkmann@uni-weimar.de

See Also:

Serialized Form

Field Summary

static int

DEFAULT_PREFIX_CLASS_DIMENSION

Constructor Summary

PrefixClassFunction(java.util.Locale locale)

PrefixClassFunction(java.util.Locale locale, int dimension, boolean filterStopwords)

Method Summary

java.util.Locale	getLocale()
boolean	isTrained()
Vector	represent(java.lang.String document) Returns the dimensional reduced deviation vector of the document's prefix classes.
void	train(java.lang.Iterable<java.lang.String> documents, boolean forceTraining)

Methods inherited from class de.aitools.ir.retrievalmodels.representer.AbstractRepresenter

train

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PREFIX_CLASS_DIMENSION

public static final int DEFAULT_PREFIX_CLASS_DIMENSION

See Also:

Constant Field Values

Constructor Detail

PrefixClassFunction

public PrefixClassFunction(java.util.Locale locale)
                    throws java.lang.Exception

Throws:

java.lang.Exception

PrefixClassFunction

public PrefixClassFunction(java.util.Locale locale,
                           int dimension,
                           boolean filterStopwords)
                    throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

getLocale

public java.util.Locale getLocale()

isTrained

public boolean isTrained()

train

public void train(java.lang.Iterable<java.lang.String> documents,
                  boolean forceTraining)

represent

public Vector represent(java.lang.String document)

Returns the dimensional reduced deviation vector of the document's prefix classes. The returned vector is normalized, which means that all vector elements are defined in the range of [0,1] and that their sum is 1.