Results 41 to 50 of about 3,238,976 (181)

Correction: A correlated topic model of Science

open access: yes, 2007
Correction to Annals of Applied Statistics 1 (2007) 17--35 [doi:10.1214/07-AOAS114]Comment: Published in at http://dx.doi.org/10.1214/07-AOAS136 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical ...
Blei, David M., Lafferty, John D.
core   +1 more source

Modeling Topic and Role Information in Meetings using the Hierarchical Dirichlet Process [PDF]

open access: yes, 2008
. In this paper, we address the modeling of topic and role information in multiparty meetings, via a nonparametric Bayesian model called the hierarchical Dirichlet process.
Huang, Songfang, Renals, Steve
core   +2 more sources

Inferring Inter-City Trip Purpose From the Perspective of the Group

open access: yesIEEE Access, 2021
Although trip purpose inference based on passively collected data has long been investigated, less attention has been paid to inter-city trips. The reason is, except using ticket sales data, only limited trips can be extracted due to the lower frequency ...
Jianpei Qian   +3 more
doaj   +1 more source

Stochastic Divergence Minimization for Biterm Topic Model

open access: yes, 2017
As the emergence and the thriving development of social networks, a huge number of short texts are accumulated and need to be processed. Inferring latent topics of collected short texts is useful for understanding its hidden structure and predicting new ...
Cui, Zhenghang   +2 more
core   +1 more source

A correlated topic model of Science

open access: yes, 2007
Topic models, such as latent Dirichlet allocation (LDA), can be useful tools for the statistical analysis of document collections and other discrete data. The LDA model assumes that the words of each document arise from a mixture of topics, each of which
Blei, David M., Lafferty, John D.
core   +2 more sources

Discriminative Relational Topic Models [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2015
Many scientific and engineering fields involve analyzing network data. For document networks, relational topic models (RTMs) provide a probabilistic generative process to describe both the link structure and document contents, and they have shown promise on predicting network structures and discovering latent topic representations.
Chen, Ning   +3 more
openaire   +3 more sources

Incorporating a Topic Model into a Hypergraph Neural Network for Searching-Scenario Oriented Recommendations

open access: yesApplied Sciences, 2022
The personalized recommendation system is a useful tool adopted by e-retailers to help consumers to find items in line with their preferences. Existing methods focus on learning user preferences from a user-item matrix or online reviews after purchasing,
Xin Huang, Xiaojuan Liu
doaj   +1 more source

New topic detection in microblogs and topic model evaluation using topical alignment [PDF]

open access: yes, 2014
textThis thesis deals with topic model evaluation and new topic detection in microblogs. Microblogs are short and thus may not carry any contextual clues.
Rajani, Nazneen Fatema
core  

When Topic Models Disagree [PDF]

open access: yesProceedings of the 24th International Conference on World Wide Web, 2015
We explore how the unsupervised extraction of topic-related keywords benefits from combining multiple topic models. We show that averaging multiple topic models, inferred from different corpora, leads to more accurate keyphrases than when using a single topic model and other state-of-the-art techniques. The experiments confirm the intuitive idea that a
Sterckx, Lucas   +3 more
openaire   +2 more sources

Short-Chain Fatty Acid-Producing Gut Microbiota Is Decreased in Parkinson’s Disease but Not in Rapid-Eye-Movement Sleep Behavior Disorder

open access: yesmSystems, 2020
Gut dysbiosis has been repeatedly reported in Parkinson’s disease (PD) but only once in idiopathic rapid-eye-movement sleep behavior disorder (iRBD) from Germany.
Hiroshi Nishiwaki   +13 more
doaj   +1 more source

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