A discrete variational recurrent topic model without the reparametrization trick

M Rezaee, F Ferraro - Advances in neural information …, 2020 - proceedings.neurips.cc
We show how to learn a neural topic model with discrete random variables---one that
explicitly models each word's assigned topic---using neural variational inference that does …

A topic coverage approach to evaluation of topic models

D Korenčić, S Ristov, J Repar, J Šnajder - IEEE access, 2021 - ieeexplore.ieee.org
Topic models are widely used unsupervised models capable of learning topics–weighted
lists of words and documents–from large collections of text documents. When topic models …

Exploring climate change discourses on the internet: a topic modeling study across ten years

G Böhm, HR Pfister - Journal of Risk Research, 2024 - Taylor & Francis
This study examines online discourses about climate change using automated text analysis.
Samples of web contributions from various sources, such as blogs, online newspaper …

An analysis of lemmatization on topic models of morphologically rich language

C May, R Cotterell, B Van Durme - arxiv preprint arxiv:1608.03995, 2016 - arxiv.org
Topic models are typically represented by top-$ m $ word lists for human interpretation. The
corpus is often pre-processed with lemmatization (or stemming) so that those …

Topic identification for speech without asr

C Liu, J Trmal, M Wiesner, C Harman… - arxiv preprint arxiv …, 2017 - arxiv.org
Modern topic identification (topic ID) systems for speech use automatic speech recognition
(ASR) to produce speech transcripts, and perform supervised classification on such ASR …

Learning document embeddings along with their uncertainties

S Kesiraju, O Plchot, L Burget… - … /ACM Transactions on …, 2020 - ieeexplore.ieee.org
Majority of the text modeling techniques yield only point-estimates of document embeddings
and lack in capturing the uncertainty of the estimates. These uncertainties give a notion of …

Topic modeling in theory and practice

CC May - 2022 - jscholarship.library.jhu.edu
Topic models can decompose a large corpus of text into a relatively small set of interpretable
themes or topics, potentially enabling a domain expert to explore and analyze a corpus …

Preventing fake news propagation in social networks using a context trust-based security model

N Voloch, E Gudes, N Gal-Oz - … , NSS 2021, Tian**, China, October 23 …, 2021 - Springer
Abstract Online Social Networks (OSN) security issues have been extensively researched in
the past decade. Information is posted and shared by individuals and organizations in social …

Fake News Detection in Social Networks Using Machine Learning and Trust

N Voloch, E Gudes, N Gal-Oz, R Mitrany… - … Symposium on Cyber …, 2022 - Springer
Fake news propagation is a major challenge for Online Social Networks (OSN) security,
which is not yet resolved. Fake news propagates because of several reasons, one of which …

[HTML][HTML] Dominio léxico y relaciones semánticas: validación de vocabulario para ítems de razonamiento

K Calvo Díaz, D Martínez Alpízar, N Pérez Rojas… - Revista …, 2023 - scielo.sa.cr
El objetivo de esta investigación es generar evidencias sobre el dominio léxico en el
contexto de relaciones semánticas de sinonimia, antonimia y temática. Basado en un …