2014 ExperimentswithNonParametricTop

• (Buntine & Mishra, 2014) ⇒ Wray L. Buntine, and Swapnil Mishra. (2014). “Experiments with Non-parametric Topic Models.” In: Proceedings of the 20th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2014) Journal. ISBN:978-1-4503-2956-9 doi:10.1145/2623330.2623691

Subject Headings:

Cited By

• http://scholar.google.com/scholar?q=%222014%22+Experiments+with+Non-parametric+Topic+Models
• http://dl.acm.org/citation.cfm?id=2623330.2623691&preflayout=flat#citedby

Quotes

Author Keywords

• Experimental results; learning; miscellaneous; non-parametric prior; text; topic modelling

Abstract

In topic modelling, various alternative priors have been developed, for instance asymmetric and symmetric priors for the document-topic and topic-word matrices respectively, the hierarchical Dirichlet process prior for the document-topic matrix and the hierarchical Pitman-Yor process prior for the topic-word matrix. For information retrieval, language models exhibiting word burstiness are important. Indeed, this burstiness effect has been show to help topic models as well, and this requires additional word probability vectors for each document. Here we show how to combine these ideas to develop high-performing non-parametric topic models exhibiting burstiness based on standard Gibbs sampling. Experiments are done to explore the behavior of the models under different conditions and to compare the algorithms with previously published. The full non-parametric topic models with burstiness are only a small factor slower than standard Gibbs sampling for LDA and require double the memory, making them very competitive. We look at the comparative behaviour of different models and present some experimental insights.

References

;

	Author	volume	Date Value	title	type	journal	titleUrl	doi	note	year
2014 ExperimentswithNonParametricTop	Wray L. Buntine Swapnil Mishra			Experiments with Non-parametric Topic Models				10.1145/2623330.2623691		2014