Latent Dirichlet Allocation ( Blei et al. , 2003 ) , or LDA , is an unsupervised Bayesian probabilistic model of text documents .
latent dirichlet allocation
David M Blei Andrew Y Ng Michael I Jordan
Latent Dirichlet Allocation ( Blei et al. , 2003 ) , or LDA , is an unsupervised Bayesian probabilistic model of text documents . It assumes that all documents are probabilistically generated from a shared set of K common topics , where each topic is a multinomial distribution over the vocabulary ( notated as Q ) , and documents are modeled as mixtures of these shared topics ( notated as 0 ) .
Latent Dirichlet Allocation ( @@CITATION ) , or LDA , is an unsupervised Bayesian probabilistic model of text documents .