vMF Sentence LDA: A Spherical Topic Model over Sentence Embeddings
Latent Dirichlet Allocation (LDA) and models derived from it remain widely used topic models. LDA observes each document as a bag-of-words and models each topic by a categorical distribution over the vocabulary, so that it uses neither the internal structure of the document nor the similarity in meaning between words....
Ryotaro Kobayashi, Yuri Murayama, Kiyoshi Izumi
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