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Hybrid variational/Gibbs collapsed inference in topic models

Abstract:

Variational Bayesian inference and (collapsed) Gibbs sampling are the two important classes of inference algorithms for Bayesian networks. Both have their advantages and disadvantages: collapsed Gibbs sampling is unbiased but is also inefficient for large count values and requires averaging over many samples to reduce variance. On the other hand, variational Bayesian inference is efficient and accurate for large count values but suffers from bias for small counts. We propose a hybrid algorith...

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Authors


Welling, M More by this author
Journal:
Proceedings of the 24th Conference on Uncertainty in Artificial Intelligence, UAI 2008
Pages:
587-594
Publication date:
2008
URN:
uuid:8f5c433e-90ff-4c94-9006-1bd05d78531b
Source identifiers:
353247
Local pid:
pubs:353247
Language:
English

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