A Provably Efficient Algorithm for Separable Topic Discovery

IEEE Journal of Selected Topics in Signal Processing, pp. 712-725, 2016.

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Keywords:
Computational modelingSignal processing algorithmsEstimationMatrix decompositionVocabularyMore(2+)

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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