Necessary and Sufficient Conditions and a Provably Efficient Algorithm for Separable Topic Discovery

arXiv: Learning, Volume abs/1508.05565, 2015.

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Abstract:

We develop necessary and sufficient conditions and a novel provably consistent and efficient algorithm for discovering topics (latent factors) from observations (documents) that are realized from a probabilistic mixture of shared latent factors that have certain properties. Our focus is on the class of topic models in which each shared la...More

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