| /* |
| * 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. |
| */ |
| |
| package opennlp.summarization.lexicalchaining; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Objects; |
| |
| import opennlp.summarization.Sentence; |
| |
| public class LexicalChain implements Comparable<LexicalChain>{ |
| final List<Word> word; |
| final List<Sentence> sentences; |
| |
| int start, last; |
| int score; |
| int occurrences = 1; |
| |
| public LexicalChain() { |
| word = new ArrayList<>(); |
| sentences = new ArrayList<>(); |
| } |
| |
| public double score() |
| { |
| return length() ; //* homogeneity(); |
| } |
| |
| public int length(){ |
| return word.size(); |
| } |
| |
| public float homogeneity() |
| { |
| return (1.0f - (float) occurrences /(float)length()); |
| } |
| |
| public void addWord(Word w) |
| { |
| word.add(w); |
| } |
| |
| public void addSentence(Sentence sent) |
| { |
| if(!sentences.contains(sent)) |
| sentences.add(sent); |
| } |
| |
| public List<Word> getWord() |
| { |
| return word; |
| } |
| |
| public List<Sentence>getSentences() |
| { |
| return this.sentences; |
| } |
| |
| @Override |
| public int compareTo(LexicalChain o) { |
| double diff = (score() - o.score()); |
| return diff == 0 ? 0: diff > 0 ? 1:-1; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| LexicalChain that = (LexicalChain) o; |
| return start == that.start && last == that.last && score == that.score && occurrences == that.occurrences; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(start, last, score, occurrences); |
| } |
| } |