Results 81 to 90 of about 3,238,976 (181)

Kernel Topic Models

open access: yes, 2011
Latent Dirichlet Allocation models discrete data as a mixture of discrete distributions, using Dirichlet beliefs over the mixture weights. We study a variation of this concept, in which the documents' mixture weight beliefs are replaced with squashed Gaussian distributions.
Hennig, P.   +3 more
openaire   +3 more sources

Quality indices for topic model selection and evaluation: a literature review and case study. [PDF]

open access: yesBMC Med Inform Decis Mak, 2023
Meaney C   +5 more
europepmc   +1 more source

Syntactic Topic Models

open access: yes, 2010
The syntactic topic model (STM) is a Bayesian nonparametric model of language that discovers latent distributions of words (topics) that are both semantically and syntactically coherent. The STM models dependency parsed corpora where sentences are grouped into documents.
Boyd-Graber, Jordan, Blei, David M.
openaire   +2 more sources

Topic Modeling [PDF]

open access: yesOsong Public Health and Research Perspectives, 2019
openaire   +3 more sources

Conceptualization Topic Modeling

open access: yes, 2017
Recently, topic modeling has been widely used to discover the abstract topics in text corpora. Most of the existing topic models are based on the assumption of three-layer hierarchical Bayesian structure, i.e. each document is modeled as a probability distribution over topics, and each topic is a probability distribution over words.
Tang, Yi-Kun   +3 more
openaire   +2 more sources

New interest-sensitive and network-sensitive method for user recommendation

open access: yesTongxin xuebao, 2015
A new hybrid approach by incorporatin gusers’ interests and users’ friendships together to recommend new friends for target users is proposed.A variation of PageRank—Topic_Friend_PageRank(TFPR) is proposed,which can consider user interests and user ...
Yan-min SHANG, Peng ZHANG, Ya-nan CAO
doaj  

Home - About - Disclaimer - Privacy