Keywords

#probabilistic_latent_semantic_analysis

Probabilistic latent semantic analysis

Probabilistic latent semantic analysis (PLSA), also known as probabilistic latent semantic indexing is a statistical technique for the analysis of two-mode and co-occurrence data. In effect, one can derive a low-dimensional representation of the observed variables in terms of their affinity to certain hidden variables, just as in latent semantic analysis, from which PLSA evolved.

Sat 15th

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Latent semantic analysis Probabilistic latent semantic analysis Latent and observable variables Latent class model Topic model Latent Dirichlet allocation Non-negative matrix factorization Semantic memory Document-term matrix Fisher kernel
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