def gen_d2v_corpus(self, lines):

        with open("./data/ques2_result.txt", "wb") as fw:

            for line in lines:

                fw.write(" ".join(jieba.lcut(line)) + "\n")

        sents = doc2vec.TaggedLineDocument("./data/ques2_result.txt")

        model = doc2vec.Doc2Vec(sents, size = 50, window = 5, alpha = 0.015)

        model.train(sents)

        corpus = model.docvecs

        np.save("./output/d2v.corpus.npy", corpus)

        return np.asarray(corpus)