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Implementation of various string similarity and distance algorithms: Levenshtein, Jaro-winkler, n-Gram, Q-Gram, Jaccard index, Longest Common Subsequence edit distance, cosine similarity...

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package info.debatty.java.stringsimilarity.interfaces;

import java.io.Serializable;

/**
 *
 * @author Thibault Debatty
 */
public interface StringSimilarity extends Serializable {
    /**
     * Compute and return a measure of similarity between 2 strings.
     * @param s1
     * @param s2
     * @return similarity (0 means both strings are completely different)
     */
    public double similarity(String s1, String s2);
    
}