Results 21 to 30 of about 3,873,151 (300)

Understanding Cybersecurity Threat Trends Through Dynamic Topic Modeling

open access: yesFrontiers in Big Data, 2021
Cybersecurity threats continue to increase and are impacting almost all aspects of modern life. Being aware of how vulnerabilities and their exploits are changing gives helpful insights into combating new threats.
Jennifer Sleeman   +2 more
doaj   +1 more source

Topical Relevance Model [PDF]

open access: yes, 2012
We introduce the topical relevance model (TRLM) as a generalization of the standard relevance model (RLM). The TRLM alleviates the limitations of the RLM by exploiting the multi-topical structure of pseudo-relevant documents. In TRLM, intra-topical document and query term co-occurrences are favoured, whereas the inter-topical ones are down-weighted ...
Ganguly, Debasis   +2 more
openaire   +3 more sources

Topic based document modeling for information filtering

open access: yesCTU Journal of Innovation and Sustainable Development, 2023
Information Filtering (IF), which has been popularly studied in recent years, is one of the areas that applies document retrieval techniques for dealing with the huge amount of information. In IF systems, modelling user’s interest and filtering relevant
Tran Diem Hanh Nguyen
doaj   +3 more sources

Introducción a Topic Modeling y MALLET

open access: yesThe Programming Historian en Español, 2018
Esta lección explica qué es topic modeling y por qué podrías querer utilizarlo en tus investigaciones. Luego aprenderás cómo instalar y trabajar con MALLET, una caja de herramientas para procesamiento de lenguajes naturales (PLN) con la que topic ...
Shawn Graham   +2 more
doaj   +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.
Renals, Steve, Huang, Songfang
core   +1 more source

Implementation of Dynamic Topic Modeling to Discover Topic Evolution on Customer Reviews

open access: yesJOIN: Jurnal Online Informatika, 2023
Annotation and analysis of online customer reviews were identified as significant problems in various domains, including business intelligence, marketing, and e-governance.
Valentinus Roby Hananto
doaj   +1 more source

Hierarchical neural topic modeling with manifold regularization

open access: yes, 2021
Topic models have been widely used for learning the latent explainable representation of documents, but most of the existing approaches discover topics in a flat structure.
Chen, Ziye   +6 more
core   +1 more source

Polylingual topic models [PDF]

open access: yesProceedings of the 2009 Conference on Empirical Methods in Natural Language Processing Volume 2 - EMNLP '09, 2009
Topic models are a useful tool for analyzing large text collections, but have previously been applied in only monolingual, or at most bilingual, contexts. Meanwhile, massive collections of interlinked documents in dozens of languages, such as Wikipedia, are now widely available, calling for tools that can characterize content in many languages.
Mimno, David   +4 more
openaire   +2 more sources

Evaluation of unsupervised static topic models’ emergence detection ability [PDF]

open access: yesPeerJ Computer Science
Detecting emerging topics is crucial for understanding research trends, technological advancements, and shifts in public discourse. While unsupervised topic modeling techniques such as Latent Dirichlet allocation (LDA), BERTopic, and CoWords clustering ...
Xue Li   +5 more
doaj   +2 more sources

The Combination of Contextualized Topic Model and MPNet for User Feedback Topic Modeling

open access: yesIEEE Access, 2023
In the era of big data and ubiquitous internet connectivity, user feedback data plays a crucial role in product development and improvement. However, extracting valuable insights from the vast pool of unstructured text data found in user feedback ...
Mohammad Hamid Asnawi   +3 more
doaj   +1 more source

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