[1] Naive Bayes,https://towardsdatascience.com/search?q=naive%20bayes
[2] Bayes's Rule Applied,https://towardsdatascience.com/bayes-rule-applied-75965e4482ff
[3] Bag-of-Words Model,https://medium.com/greyatom/an-introduction-to-bag-of-words-in-nlp-ac967d43b428
[4] Regular Expression,https://blog.csdn.net/i_chaoren/article/details/62264414
[5] feedparser in Python3, https://blog.csdn.net/u013709332/article/details/31820267
[6] Stop words, https://www.ranks.nl/stopwords
[7] what is stop words, https://searchmicroservices.techtarget.com/definition/stop-word
[8] What is RSS, https://www.bloggingbasics101.com/what-is-rss/
[9] List of stop words, https://kb.yoast.com/kb/list-stop-words/