package org.apache.lucene.facet.example.association;
import org.apache.lucene.facet.enhancements.association.AssociationEnhancement;
import org.apache.lucene.facet.enhancements.association.AssociationFloatProperty;
import org.apache.lucene.facet.enhancements.association.AssociationIntProperty;
import org.apache.lucene.facet.enhancements.association.AssociationProperty;
import org.apache.lucene.facet.enhancements.params.DefaultEnhancementsIndexingParams;
import org.apache.lucene.facet.taxonomy.CategoryPath;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @lucene.experimental
*/
public class AssociationUtils {
/**
* Categories: categories[D][N] == category-path with association no. N for
* document no. D.
*/
public static CategoryPath[][] categories = {
// Doc #1
{ new CategoryPath("tags", "lucene") ,
new CategoryPath("genre", "computing")
},
// Doc #2
{ new CategoryPath("tags", "lucene"),
new CategoryPath("tags", "solr"),
new CategoryPath("genre", "computing"),
new CategoryPath("genre", "software")
}
};
public static AssociationProperty[][] associations = {
// Doc #1 associations
{
/* 3 occurrences for tag 'lucene' */
new AssociationIntProperty(3),
/* 87% confidence level of genre 'computing' */
new AssociationFloatProperty(0.87f)
},
// Doc #2 associations
{
/* 1 occurrence for tag 'lucene' */
new AssociationIntProperty(1),
/* 2 occurrences for tag 'solr' */
new AssociationIntProperty(2),
/* 75% confidence level of genre 'computing' */
new AssociationFloatProperty(0.75f),
/* 34% confidence level of genre 'software' */
new AssociationFloatProperty(0.34f),
}
};
/**
* Indexing Params: the indexing params to use when dealing with
* associations.
*/
public static final DefaultEnhancementsIndexingParams assocIndexingParams =
new DefaultEnhancementsIndexingParams(new AssociationEnhancement());
}