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Pengharapan Penghantaran (EP)×Peruntukan Dirichlet Latent (LDA)×Markov Chain Monte Carlo (MCMC)×
BidangBayesianPembelajaran MesinBayesian
KeluargaBayesian methodsLatent structureBayesian methods
Tahun asal20012003
PengasasThomas P. MinkaBlei, D. M.; Ng, A. Y.; Jordan, M. I.
JenisApproximate inference algorithmGenerative probabilistic topic model (three-level hierarchical Bayesian)Posterior sampling algorithm
Sumber perintisMinka, T. P. (2001). Expectation propagation for approximate Bayesian inference. In Proceedings of the Seventeenth Conference on Uncertainty in Artificial Intelligence (UAI-01), pp. 362–369. Morgan Kaufmann. link ↗Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet allocation. Journal of Machine Learning Research, 3, 993–1022. DOI ↗Gelman, A., Carlin, J. B., Stern, H. S., Dunson, D. B., Vehtari, A. & Rubin, D. B. (2013). Bayesian Data Analysis (3rd ed.). CRC Press. ISBN: 978-1439840955
AliasEP, expectation propagation, EP algorithm, assumed-density filtering generalisationLDA, topic model, Blei-Ng-Jordan model, probabilistic topic modelingmarkov chain monte carlo, MCMC sampling, MCMC (Markov Zinciri Monte Carlo)
Berkaitan333
RingkasanExpectation Propagation (EP) is a deterministic message-passing algorithm for approximate posterior inference in Bayesian models, introduced by Thomas P. Minka at UAI 2001. It iteratively refines a set of local approximate factors — each drawn from the exponential family — so that their product closely matches the true intractable posterior, achieving higher accuracy than mean-field variational inference on many probabilistic machine learning tasks.Latent Dirichlet Allocation (LDA) is a generative probabilistic model for collections of discrete data, introduced by Blei, Ng, and Jordan in 2003. It treats each document as a mixture of latent topics and each topic as a probability distribution over words, enabling unsupervised discovery of thematic structure across large text corpora. It is one of the most cited papers in machine learning and natural language processing.Markov Chain Monte Carlo (MCMC) is a family of computational algorithms for sampling from complex probability distributions, most commonly the posterior distributions that arise in Bayesian inference. Rather than computing posteriors analytically — which is rarely possible for realistic models — MCMC constructs a Markov chain whose stationary distribution is the target posterior and draws dependent samples from it, enabling full probabilistic inference for virtually any model.
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ScholarGateBandingkan kaedah: Expectation Propagation · Latent Dirichlet Allocation · MCMC. Dicapai 2026-06-18 daripada https://scholargate.app/ms/compare