Latent Dirichlet Allocation

E898981

Latent Dirichlet Allocation is a generative probabilistic model commonly used in natural language processing to discover latent topics within large collections of documents.

All labels observed (1)

Label Occurrences
Latent Dirichlet Allocation canonical 3

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Statements (59)

Predicate Object
instanceOf Bayesian model ⓘ
bag-of-words model ⓘ
generative probabilistic model ⓘ
topic model ⓘ
unsupervised learning method ⓘ
appliedIn bioinformatics text analysis ⓘ
digital humanities ⓘ
news article analysis ⓘ
scientific literature analysis ⓘ
social media analysis ⓘ
assumes bag-of-words representation of documents ⓘ
documents are mixtures of topics ⓘ
topics are distributions over words ⓘ
basedOn Dirichlet distribution ⓘ
multinomial distribution ⓘ
differsFrom probabilistic latent semantic analysis by using Dirichlet priors ⓘ
evaluationMetric perplexity ⓘ
topic coherence ⓘ
extends probabilistic latent semantic analysis ⓘ
field machine learning ⓘ
natural language processing ⓘ
statistics ⓘ
hasAbbreviation LDA ⓘ
hasComponent topic distribution per document ⓘ
word distribution per topic ⓘ
hasHyperparameter alpha ⓘ
beta ⓘ
hyperparameterAlphaControls document-topic sparsity ⓘ
hyperparameterBetaControls topic-word sparsity ⓘ
implementedIn Gensim ⓘ
MALLET ⓘ
Stan ⓘ
scikit-learn ⓘ
inferenceMethod collapsed Gibbs sampling ⓘ
expectation-maximization ⓘ
online variational Bayes ⓘ
variational inference ⓘ
input corpus of documents ⓘ
introducedBy Andrew Y. Ng ⓘ
linked to: Andrew Ng

David M. Blei ⓘ
Michael I. Jordan ⓘ
introducedInPaper Latent Dirichlet Allocation ⓘ
output set of topics ⓘ
topic proportions for each document ⓘ
word distribution for each topic ⓘ
publicationYear 2003 ⓘ
publishedIn Journal of Machine Learning Research ⓘ
linked to: JMLR
relatedTo latent semantic analysis ⓘ
probabilistic latent semantic analysis ⓘ
requires predefined number of topics ⓘ
usedFor content-based recommendation ⓘ
dimensionality reduction ⓘ
document classification preprocessing ⓘ
document clustering ⓘ
feature extraction ⓘ
information retrieval ⓘ
recommender systems ⓘ
text mining ⓘ
topic discovery ⓘ

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Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Gibbs sampling → usedIn → Latent Dirichlet Allocation ⓘ
Dirichlet distribution → usedIn → Latent Dirichlet Allocation ⓘ
Latent Dirichlet Allocation → introducedInPaper → Latent Dirichlet Allocation ⓘ