Latent dirichlet allocation
Citations
981 citations
Cites background or methods from "Latent dirichlet allocation"
...Specifically, the simple additive model tends to produce the best results for representations based on Latent Dirichlet Allocation (Blei et al., 2003), whereas our novel simple multiplicative model is more effective on the simple semantic space representations....
[...]
...Practical implementations of this idea range from ad-hoc approaches for turning word co-occurrence statistics into vector based representations (Lund and Burgess, 1996) to sophisticated generative models of the distribution of words across the documents in a corpus (Blei et al., 2003)....
[...]
...As explained in Chapter 2, Latent Dirichlet Allocation (Blei et al., 2003) models the relationship between words and documents in terms of topics, with each document being a mixture of topics and each topic being a unigram distribution over words....
[...]
...Within two broad approaches, a simple semantic space and a Latent Dirchlet Allocation (Blei et al., 2003) model, we consider various parameter settings and evaluate the resulting representations on two tasks....
[...]
...Although several variants have been proposed in the literature (e.g., Blei et al., 2003; Griffiths et al., 2007), they are all based on the same fundamental idea: Documents are mixtures of topics where a topic is a probability distribution over words....
[...]
973 citations
Cites background or methods from "Latent dirichlet allocation"
...In particular, TAP takes 1) the results of any topic modeling such as a predefined topic ontology or topic clusters based on pLSI [15] and LDA [3] and 2) the existing network structure to perform topic-level influence propagation....
[...]
...In particular, TAP takes 1) the results of any topic modeling such as a prede.ned topic ontology or topic clusters based on pLSI [15] and LDA [3] and 2) the existing network structure to perform topic-level in.uence propagation....
[...]
...In addition, we can use statistical topic modeling [3, 15, 18] to automatically extract topics from the social networking data....
[...]
969 citations
Cites background or methods from "Latent dirichlet allocation"
...…the LDA model it can be shown with the following equality that the variational parameters result in a lower bound for the log-likelihood log p(w|α, β) = L(γ, φ;α, β) + DKL(q(θ, z|γ, φ)||p(θ, z|w,α, β)) where L(γ, φ;α, β) = Eq[log p(θ, z, w|α, β)]− Eq[log q(θ, z)] (see Blei et al. 2003b, p. 1019)....
[...]
...…default values for the convergence checks are chosen similar to those suggested in the code available from Blei’s web page as additional material to Blei et al. (2003b) and Blei and Lafferty (2007). initialize: This parameter determines how the topics are initialized and can be either equal to…...
[...]
...The latent Dirichlet allocation (LDA; Blei, Ng, and Jordan 2003b) model is a Bayesian mixture model for discrete data where topics are assumed to be uncorrelated....
[...]
...Keywords: Gibbs sampling, R, text analysis, topic model, variational EM....
[...]
959 citations
Additional excerpts
...This is akin to a computing topic based similarity of documents [17]....
[...]
933 citations
Cites background from "Latent dirichlet allocation"
...Thus, for the purposes of place recognition, any globally metric map can be considered as a one-node topometric map....
[...]
References
17,608 citations
16,079 citations
"Latent dirichlet allocation" refers background in this paper
...Finally, Griffiths and Steyvers (2002) have presented a Markov chain Monte Carlo algorithm for LDA....
[...]
...Structures similar to that shown in Figure 1 are often studied in Bayesian statistical modeling, where they are referred to ashierarchical models(Gelman et al., 1995), or more precisely asconditionally independent hierarchical models(Kass and Steffey, 1989)....
[...]
...Structures similar to that shown in Figure 1 are often studied in Bayesian statistical modeling, where they are referred to as hierarchical models (Gelman et al., 1995), or more precisely as conditionally independent hierarchical models (Kass and Steffey, 1989)....
[...]
12,443 citations
"Latent dirichlet allocation" refers methods in this paper
...To address these shortcomings, IR researchers have proposed several other dimensionality reduction techniques, most notably latent semantic indexing (LSI) (Deerwester et al., 1990)....
[...]
...To address these shortcomings, IR researchers have proposed several other dimensionality reduction techniques, most notablylatent semantic indexing (LSI)(Deerwester et al., 1990)....
[...]
12,059 citations
"Latent dirichlet allocation" refers background or methods in this paper
...In the populartf-idf scheme (Salton and McGill, 1983), a basic vocabulary of “words” or “terms” is chosen, and, for each document in the corpus, a count is formed of the number of occurrences of each word....
[...]
...We report results in document modeling, text classification, and collaborative filtering, comparing to a mixture of unigrams model and the probabilistic LSI model....
[...]
7,086 citations