Thursday, October 7, 2010
PLDA: Parallel Latent Dirichlet Allocation for Large-Scale Applications
This paper discussed two implementations of PLDA, one using MPI and another using Map/Reduce. It seems that the Map/Reduce framework in google doesn't support iteration too. The comparison of LDA implementations via variational Bayesian, EP and Gibbs sampler was mentioned. But somehow quite strange, I would like to make the comparison myself sometime later.
Some models can be naturally extended into its parallel version, such as many monte-carlo methods. In the authors' implementation I see many similarity as another version by my colleagues. Wen-yen now is also one of my colleagues now, small world!
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