/*
* #!
* Ontopia Classify
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* Licensed 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.
* !#
*/
package net.ontopia.topicmaps.classify;
import java.util.HashMap;
import java.util.Map;
/**
* INTERNAL:
*/
public class RegionBooster extends AbstractDocumentAnalyzer {
Map<String, Double> regions;
double boost = 1.0d;
public RegionBooster() {
super(1);
this.regions = new HashMap<String, Double>();
}
public void addBoost(String rname, double boost) {
regions.put(rname, new Double(boost));
}
public void startRegion(Region region) {
super.startRegion(region);
String rname = region.getName();
Double d = regions.get(rname);
if (d != null) {
this.boost = d.doubleValue();
} else {
this.boost = 1.0d;
}
}
public void analyzeToken(TextBlock parent, Token token, int index) {
// ignore non variant tokens
if (token.getType() != Token.TYPE_VARIANT) return;
Term term = ((Variant)token).getTerm();
double score = term.getScore();
if (score > 0d)
term.multiplyScore(boost, "region boost");
}
public void endRegion(Region region) {
super.endRegion(region);
}
}