1. https://www.cnblogs.com/cymx66688/p/11185824.html (word2vec中的CBOW 和skip-gram 模型 浅析)
2. https://www.cnblogs.com/cymx66688/p/11223087.html (word2vec中高效训练方法)
3.http://flyrie.top/2018/10/31/Word2vec_Hierarchical_Softmax/ (Hierarchical Softmax详解)
4.https://www.cnblogs.com/pinard/p/7249903.html (基于Negative Sampling的模型概述,刘建平的三篇文章)