Package org.apache.solr.ltr.feature

package org.apache.solr.ltr.feature

Contains Feature related classes

Related Packages

Package	Description
org.apache.solr.ltr	This package contains the main logic for performing the reranking using a Learning to Rank model.
org.apache.solr.ltr.feature.extraction	Contains the logic to extract features.

Class	Description
Feature	A recipe for computing a feature.
Feature.FeatureWeight.FeatureScorer	A 'recipe' for computing a feature
Feature.FeatureWeight.FilterFeatureScorer	A FeatureScorer that contains a Scorer, which it delegates to where appropriate.
Feature.FeatureWeight.ValueFeatureScorer	Default FeatureScorer class that returns the score passed in.
FeatureException
FieldLengthFeature	This feature returns the length of a field (in terms) for the current document.
FieldValueFeature	This feature returns the value of a field in the current document.
LegacyFieldValueFeature	Deprecated.
OriginalScoreFeature	This feature returns the original score that the document had before performing the reranking.
OriginalScoreFeature.OriginalScoreWeight.OriginalScoreScorer
SolrFeature	This feature allows you to reuse any Solr query as a feature.
SolrFeature.SolrFeatureWeight.SolrFeatureScorer	Scorer for a SolrFeature
ValueFeature	This feature allows to return a constant given value for the current document.