在WS4J中使用wu-palmer计算器来查找单词之间的相似性

问题描述

我正在使用WS4j来查找两个单词之间的相似性。我也在使用Wu-Palmer相关性计算器。它适用于很多单词，但是当我试图找到'play'和'playing'之间的相似性时，它给出了得分1.3333，这是不可能的，因为它必须在0和1或-1之间返回。我无法弄清楚原因。当我使用其网页界面'http://ws4jdemo.appspot.com/?mode=w&s1=&w1=play&s2=&w2=playing'时，它返回0.875。

这是我的代码：

I am using WS4j to find the similarity between two words. Also I am using Wu-Palmer relatedness calculator. It is working fine for many words, but when I tried to find the similarity between 'play' and 'playing', it gave the score 1.3333, which is not possible as it has to return between 0 and 1 or -1. I can't figure out the reason. When I used its web interface 'http://ws4jdemo.appspot.com/?mode=w&s1=&w1=play&s2=&w2=playing' it returned 0.875.
Here is my code:

private static void findSimilarity(String word1, String word2) {
	WS4JConfiguration.getInstance().setMFS(true);
	List<POS[]> posPairs = wup.getPOSPairs();
	double maxScore = -1D;

	for(POS[] posPair: posPairs) {
		List<Concept> synsets1 =
		(List<Concept>)db.getAllConcepts(word1, posPair[0].toString());

		List<Concept> synsets2 =
		(List<Concept>)db.getAllConcepts(word2, posPair[1].toString());

		for(Concept synset1: synsets1) {
			for (Concept synset2: synsets2) {
				Relatedness relatedness = wup.calcRelatednessOfSynset(synset1, synset2);
				double score = relatedness.getScore();

				if (score > maxScore) {
					maxScore = score;
				}
			}
		}
	}

	if (maxScore == -1D) {
		maxScore = 0.0;
	}

	System.out.println("sim('" + word1 + "', '" + word2 + "') =  " + maxScore);
}

我的尝试：



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