se.lth.cs.nlp.nlputils.ml
Class FeatureExtractor<T>

java.lang.Object
  se.lth.cs.nlp.nlputils.ml.FeatureExtractor<T>

public abstract class FeatureExtractor<T>
extends Object

Abstract class that represents the mapping from an item to a list of feature values.

Author:

Richard Johansson (richard@cs.lth.se)

Field Summary

static int	FEATURE_EXTRACTOR_FAILED
static int	FEATURE_EXTRACTOR_OK

Constructor Summary

FeatureExtractor()

Method Summary

abstract int

extractFeatures(T item, FeatureList list) Extracts features of an item to a FeatureList.

Methods inherited from class java.lang.Object

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

Field Detail

FEATURE_EXTRACTOR_OK

public static final int FEATURE_EXTRACTOR_OK

See Also:

Constant Field Values

FEATURE_EXTRACTOR_FAILED

public static final int FEATURE_EXTRACTOR_FAILED

See Also:

Constant Field Values

Constructor Detail

FeatureExtractor

public FeatureExtractor()

Method Detail

extractFeatures

public abstract int extractFeatures(T item,
                                    FeatureList list)

Extracts features of an item to a FeatureList.

Parameters:

item - the item to classify.

list - the feature list.

Returns:

a status integer.