Results 11 to 20 of about 3,238,976 (181)

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   +4 more sources

A Topic Modeling Comparison Between LDA, NMF, Top2Vec, and BERTopic to Demystify Twitter Posts

open access: yesFrontiers in Sociology, 2022
The richness of social media data has opened a new avenue for social science research to gain insights into human behaviors and experiences. In particular, emerging data-driven approaches relying on topic models provide entirely new perspectives on ...
Roman Egger, Joanne Yu
doaj   +1 more source

Detecting Community Evolution by Utilizing Individual Temporal Semantics in Social Networks

open access: yesIEEE Access, 2023
Social networks are becoming increasingly popular and significant. One of the most distinctive features of these networks is their dynamic nature, which means that they change over time.
Feng Wang, Dingbo Hou, Hao Yan
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   +2 more sources

Overlapping Community Detection in Weighted Temporal Text Networks

open access: yesIEEE Access, 2020
Network is a powerful language to represent relational data. One way to understand network is to analyze groups of nodes which share same properties or functions. The task of discovering such groups is known as community detection.
Rui Dong, Juanjuan Yang, Yonggang Chen
doaj   +1 more source

BiTTM: A Core Biterms-Based Topic Model for Targeted Analysis

open access: yesApplied Sciences, 2021
While most of the existing topic models perform a full analysis on a set of documents to discover all topics, it is noticed recently that in many situations users are interested in fine-grained topics related to some specific aspects only.
Jiamiao Wang   +3 more
doaj   +1 more source

Mining Review Unit Model for Online Review Analysis

open access: yesIEEE Access, 2020
An increasing number of people are choosing to shop online; hence, online reviews are an increasingly influential factor in consumer purchasing decisions.
Qingxi Peng   +3 more
doaj   +1 more source

Analysis of the impact of investor sentiment on stock price using the latent dirichlet allocation topic model

open access: yesFrontiers in Environmental Science, 2022
Investor sentiment has always been an active research topic in finance. In recent years, text mining, machine learning and sentiment analysis have been very fruitful, and researchers can extract valuable information from social platforms more promptly ...
Meilan Chen   +3 more
doaj   +1 more source

Language Model-Driven Topic Clustering and Summarization for News Articles

open access: yesIEEE Access, 2019
Topic models have been widely utilized in Topic Detection and Tracking tasks, which aim to detect, track, and describe topics from a stream of broadcast news reports.
Peng Yang, Wenhan Li, Guangzhen Zhao
doaj   +1 more source

Evidence map: topics, trends, and policy in the energy transitions literature

open access: yesEnvironmental Research Letters, 2020
We develop an evidence map of the academic research on energy transitions (ETs) with a focus on what that literature says about public policy for addressing climate change.
Jiaqi Lu, Gregory F Nemet
doaj   +1 more source

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