Latent Dirichlet Allocation

Posted on 2015-04-01 19:27 Hederahelix 阅读(110) 评论(0) 收藏举报

Latent Dirichlet Allocation (LDA) is a common method of topic modeling. That is, if I have a document and want to figure out if it's a sports article or a mathematics paper, I can use LDA to build a system that looks at other sports articles or mathematics papers and automatically decides whether this unseen document's topic is sports or math.