2012 TheContextualFocusedTopicModel

• (Chen et al., 2012) ⇒ Xu Chen, Mingyuan Zhou, and Lawrence Carin. (2012). “The Contextual Focused Topic Model.” In: Proceedings of the 18th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2012). ISBN:978-1-4503-1462-6 doi:10.1145/2339530.2339549

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• http://scholar.google.com/scholar?q=%222012%22+The+Contextual+Focused+Topic+Model
• http://dl.acm.org/citation.cfm?id=2339530.2339549&preflayout=flat#citedby

Quotes

Author Keywords

• Bayesian nonparametric; clustering; database applications; dirich-let process; hierarchical beta process; information search and retrieval; topic modeling

Abstract

A nonparametric Bayesian contextual focused topic model (cFTM) is proposed. The cFTM infers a sparse ("focused") set of topics for each document, while also leveraging contextual information about the author(s) and document venue. The hierarchical beta process, coupled with a Bernoulli process, is employed to infer the focused set of topics associated with each author and venue; the same construction is also employed to infer those topics associated with a given document that are unusual (termed “random effects "), relative to topics that are inferred as probable for the associated author (s) and venue. To leverage statistical strength and infer latent interrelationships between authors and venues, the Dirichlet process is utilized to cluster authors and venues. The cFTM automatically infers the number of topics needed to represent the corpus, the number of author and venue clusters, and the probabilistic importance of the author, venue and random-effect information on word assignment for a given document. Efficient MCMC inference is presented. Example results and interpretations are presented for two real datasets, demonstrating promising performance, with comparison to other state-of-the-art methods.

References

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	Author	volume	Date Value	title	type	journal	titleUrl	doi	note	year
2012 TheContextualFocusedTopicModel	Xu Chen Mingyuan Zhou Lawrence Carin			The Contextual Focused Topic Model				10.1145/2339530.2339549		2012