Results 41 to 50 of about 23,460 (215)

Leveraging Global and Local Topic Popularities for LDA-Based Document Clustering

open access: yesIEEE Access, 2020
Document clustering is of high importance for many natural language technologies. A wide range of computational traditional topic models, such as LDA (Latent Dirichlet Allocation) and its variants, have made great progress. However, traditional LDA-based
Peng Yang, Yu Yao, Huajian Zhou
doaj   +1 more source

A Microblog Hot Topic Mining Method Integrating Tag Semantics [PDF]

open access: yesJisuanji gongcheng, 2019
Due to the short length of the microblog text,the direct use of Latent Dirichlet Allocation(LDA) model will lead to high-dimensional sparse feature vectors.Thus,a hot topic mining method integrating tag semantics is proposed.The common block algorithm is
ZHOU Fuxing, CHEN Xiuzhen, MA Jin, LI Shenghong
doaj   +1 more source

Multi-angle Personalized Microblog Recommendation Algorithm Based on LDA Model [PDF]

open access: yesJisuanji gongcheng, 2017
Using Latent Dirichlet Allocation(LDA) to mine topics which users are interested in is the most popular topic-mining method.In order to improve users′ experience and recommend fresh microblog which users are interested,this paper puts forward a multi ...
SUN Yujie,QIN Yongbin
doaj   +1 more source

Extending Information Retrieval Methods to Personalized Genomic-Based Studies of Disease

open access: yesCancer Informatics, 2014
Genomic-based studies of disease now involve diverse types of data collected on large groups of patients. A major challenge facing statistical scientists is how best to combine the data, extract important features, and comprehensively characterize the ...
Shuyun Ye   +2 more
doaj   +1 more source

Context‐centric proactive information delivery for Knowledge Work support: Opportunities, challenges, and directions. An Annual Review of Information Science and Technology (ARIST)

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract Context‐centric proactive information delivery (PID) is a relatively underexplored domain within recommender systems (RS) aimed at enhancing Knowledge Workers' productivity by proactively providing relevant information during digital tasks.
Mahta Bakhshizadeh   +4 more
wiley   +1 more source

A Topic Modeling Toolbox Using Belief Propagation [PDF]

open access: yes, 2012
Latent Dirichlet allocation (LDA) is an important hierarchical Bayesian model for probabilistic topic modeling, which attracts worldwide interests and touches on many important applications in text mining, computer vision and computational biology.
Zeng, Jia
core  

Delineating gender/sex‐related studies through bibliometric analysis

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract The multidisciplinary and socially grounded nature of Women's/Gender/Feminist Studies poses unique challenges for bibliometric analysis, as it extends beyond conventional disciplinary boundaries. This paper makes three key contributions: (1) We propose a novel retrieval method for constructing a corpus of scholarly documents in research areas ...
Natsumi S. Shokida   +2 more
wiley   +1 more source

An Empirical Study of Stochastic Variational Algorithms for the Beta Bernoulli Process [PDF]

open access: yes, 2015
Stochastic variational inference (SVI) is emerging as the most promising candidate for scaling inference in Bayesian probabilistic models to large datasets.
Ghahramani, Zoubin   +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

A derivation of variational message passing (VMP) for latent Dirichlet allocation (LDA)

open access: yes, 2021
24 pages,not yet submitted ...
Taylor, Rebecca M. C.   +2 more
openaire   +2 more sources

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