Latent Dirichlet Co-Clustering

We present a generative model for simultaneously clustering documents and terms. Our model is a four-level hierarchical Bayesian model, in which each document is modeled as a random mixture of document topics , where each topic is a distribution over some segments of the text. Each of these segments...

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Vydáno v:Sixth International Conference on Data Mining (ICDM'06) s. 542 - 551
Hlavní autoři: Shafiei, M.M., Milios, E.E.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.12.2006
Témata:
Bayesian methods
Clustering algorithms
Computer science
Data mining
Frequency
Inference algorithms
Large scale integration
Linear discriminant analysis
Natural languages
Parameter estimation
ISBN:9780769527017, 0769527019
ISSN:1550-4786
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Shrnutí:We present a generative model for simultaneously clustering documents and terms. Our model is a four-level hierarchical Bayesian model, in which each document is modeled as a random mixture of document topics , where each topic is a distribution over some segments of the text. Each of these segments in the document can be modeled as a mixture of word topics where each topic is a distribution over words. We present efficient approximate inference techniques based on Markov Chain Monte Carlo method and a moment-matching algorithm for empirical Bayes parameter estimation. We report results in document modeling, document and term clustering, comparing to other topic models, Clustering and Co-Clustering algorithms including latent Dirichlet allocation (LDA), model-based overlapping clustering (MOC), model-based overlapping co-clustering (MOCC) and information-theoretic co-clustering (ITCC).
ISBN:9780769527017
0769527019
ISSN:1550-4786
DOI:10.1109/ICDM.2006.94