Abstract:Recently, topic modeling has been upgraded by neural variational inference, which simultaneously allows the model structures deeper and proposes efficient update rules with the reparameterization trick. We formally call this recent new art as neural topic model. In this paper, we investigate a problem of neural topic models, where they formulate topic embeddings and measure the word weights within topics by linear transformation between topic and word embeddings, resulting in redundant and inaccurate topic rep… Show more
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