ts-textrank/TextRank/domain/SorensenDiceSimilarity.js

Typescript TextRank implementation

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class SorensenDiceSimilarity {
    getSimilarity(s1, s2) {
        if (s1.words.length === 0 && s2.words.length === 0) {
            return 0;
        }
        const w1 = s1.words.map(w => w.normalized);
        const w2 = s2.words.map(w => w.normalized);
        let common = 0;
        const total = w1.length + w2.length;
        for (let i = 0; i < w1.length; i++) {
            if (w2.includes(w1[i])) {
                common++;
            }
        }
        const sd = 2 * common / total;
        return sd;
    }
}
exports.default = SorensenDiceSimilarity;