javascript - 如何过滤掉具有相同关键词的不同标题

Question

我有相似的字符串，因为它们包含相同的关键字。

如果多个字符串具有三个或更多相同的关键字，那么我只想返回一个字符串。

示例:

Ex Machina is an example of female artificial intelligence.
Ex Machina, why are most artificial intelligence represented as female?
Will Artificial Intelligence be represented females like in Ex Machina?

我想过滤 3 个关键字的所有字符串，然后只保留一个字符串。

不确定我是否可以单独使用正则表达式或需要 JavaScript。

帮忙？

Answer 1

简单地循环所有句子并删除标点符号，并将单词保留在 map 中怎么样？聚合计数，然后循环哈希以查找出现次数超过 3 的单词

function filter() {
    var sentences = [
        "Ex Machina is an example of female artificial intelligence.",
        "Ex Machina, why are most artificial intelligence represented as female?",
        "Will Artificial Intelligence be represented females like in Ex Machina?"
    ];

    var word_map = {};

    for (var i = 0; i < sentences.length; i++) {
        var cur_sentence = sentences[i];
        cur_sentence = remove_punctuations(cur_sentence).toLowerCase().split(' ');

        cur_sentence.forEach(function(w) {
            if (word_map.hasOwnProperty(w)) {
                word_map[w] += 1;
            } else {
            word_map[w] = 1;
            }
        });
    }

    console.log(word_map);

}

function remove_punctuations(w) {
    return w.replace(/[\.?,]/g, '');
}