Results 41 to 50 of about 975,825 (180)

On-line Evolutionary Sentiment Topic Analysis Modeling

open access: yesInternational Journal of Computational Intelligence Systems, 2018
As the rapid booming of reviews, a valid sentiment analysis model will significantly boost the review recommendation system’s capability, and present more constructive information for consumers.
YongHeng Chen   +3 more
doaj   +1 more source

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

Systematic Literature Review of Topic Labeling

open access: yesIEEE Access
The rapid growth of textual data on the web has led researchers to develop methods in Natural Language Processing (NLP) to process, understand, and identify topics.
Salma Mekaoui   +3 more
doaj   +1 more source

Mining Social Entrepreneurship Strategies Using Topic Modeling. [PDF]

open access: yesPLoS ONE, 2016
Despite the burgeoning research on social entrepreneurship (SE), SE strategies remain poorly understood. Drawing on extant research on the social activism and social change, empowerment and SE models, we explore, classify and validate the strategies used
Yanto Chandra   +2 more
doaj   +1 more source

Ordering-sensitive and Semantic-aware Topic Modeling

open access: yes, 2015
Topic modeling of textual corpora is an important and challenging problem. In most previous work, the "bag-of-words" assumption is usually made which ignores the ordering of words.
Cui, Tianyi, Tu, Wenting, Yang, Min
core   +2 more sources

ATM: Adversarial-neural Topic Model [PDF]

open access: yesInformation Processing & Management, 2019
Published at the journal Information Processing & ...
Wang, Rui, Zhou, Deyu, He, Yulan
openaire   +2 more sources

Memory-Efficient Topic Modeling [PDF]

open access: yes, 2012
As one of the simplest probabilistic topic modeling techniques, latent Dirichlet allocation (LDA) has found many important applications in text mining, computer vision and computational biology.
Cao, Xiao-Qin, Liu, Zhi-Qiang, Zeng, Jia
core  

Topic Modeling Based Multi-modal Depression Detection

open access: yes, 2017
Major depressive disorder is a common mental disorder that affects almost 7% of the adult U.S. population. The 2017 Audio/Visual Emotion Challenge (AVEC) asks participants to build a model to predict depression levels based on the audio, video, and text ...
Gong, Yuan, Poellabauer, Christian
core   +1 more source

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

User–Topic Modeling for Online Community Analysis

open access: yesApplied Sciences, 2020
Analyzing user behavior in online spaces is an important task. This paper is dedicated to analyzing the online community in terms of topics. We present a user–topic model based on the latent Dirichlet allocation (LDA), as an application of topic modeling
Sung-Hwan Kim, Hwan-Gue Cho
doaj   +1 more source

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