Package org.apache.solr.ltr.feature.extraction

Class FeatureExtractor

java.lang.Object

org.apache.solr.ltr.feature.extraction.FeatureExtractor

Direct Known Subclasses:

MultiFeaturesExtractor, SingleFeatureExtractor

public abstract class FeatureExtractor
extends Object

The class used to extract features for LTR feature logging.

Field Summary

Fields

Modifier and Type	Field	Description
protected final FeatureTraversalScorer	traversalScorer

Method Summary

Modifier and Type	Method	Description
protected abstract float[]	extractFeatureVector()
void	fillFeaturesInfo()
protected float[]	initFeatureVector(LTRScoringQuery.FeatureInfo[] featuresInfos)

Methods inherited from class java.lang.Object

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

Field Details

traversalScorer

protected final FeatureTraversalScorer traversalScorer

Method Details

initFeatureVector

protected float[] initFeatureVector(LTRScoringQuery.FeatureInfo[] featuresInfos)

extractFeatureVector

protected abstract float[] extractFeatureVector()
                                         throws IOException

Throws:

IOException

fillFeaturesInfo

public void fillFeaturesInfo()
                      throws IOException

Throws:

IOException