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Inferring topics from the overwhelming amount of short texts becomes a critical but challenging task for many content analysis tasks, such as content charactering, user interest profiling, and emerging topic detecting. Existing methods such…

Computation and Language · Computer Science 2016-09-28 Jipeng Qiang , Ping Chen , Tong Wang , Xindong Wu

The ability to monitor the evolution of topics over time is extremely valuable for businesses. Currently, all existing topic tracking methods use lexical information by matching word usage. However, no studies has ever experimented with the…

Computation and Language · Computer Science 2023-01-03 Judicael Poumay , Ashwin Ittoo

Existing deep hierarchical topic models are able to extract semantically meaningful topics from a text corpus in an unsupervised manner and automatically organize them into a topic hierarchy. However, it is unclear how to incorporate prior…

Machine Learning · Computer Science 2021-10-28 Zhibin Duan , Yishi Xu , Bo Chen , Dongsheng Wang , Chaojie Wang , Mingyuan Zhou

Comprehending the information environment (IE) during crisis events is challenging due to the rapid change and abstract nature of the domain. Many approaches focus on snapshots via classification methods or network approaches to describe…

Social and Information Networks · Computer Science 2026-03-19 David Farr , Stephen Prochaska , Jack Moody , Lynnette Hui Xian Ng , Iain Cruickshank , Kate Starbird , Jevin West

Topic modeling is a powerful technique to discover hidden topics and patterns within a collection of documents without prior knowledge. Traditional topic modeling and clustering-based techniques encounter challenges in capturing contextual…

Computation and Language · Computer Science 2024-10-04 Melkamu Abay Mersha , Mesay Gemeda yigezu , Jugal Kalita

This paper proposes a new methodology to study sequential corpora by implementing a two-stage algorithm that learns time-based topics with respect to a scale of document positions and introduces the concept of Topic Scaling which ranks…

Information Retrieval · Computer Science 2021-04-05 Sami Diaf , Ulrich Fritsche

Topic modelling has been a successful technique for text analysis for almost twenty years. When topic modelling met deep neural networks, there emerged a new and increasingly popular research area, neural topic models, with over a hundred…

Machine Learning · Computer Science 2021-03-02 He Zhao , Dinh Phung , Viet Huynh , Yuan Jin , Lan Du , Wray Buntine

Topic models are valuable for understanding extensive document collections, but they don't always identify the most relevant topics. Classical probabilistic and anchor-based topic models offer interactive versions that allow users to guide…

Machine Learning · Computer Science 2024-02-08 Kyle Seelman , Mozhi Zhang , Jordan Boyd-Graber

By illuminating latent structures in a corpus of text, topic models are an essential tool for categorizing, summarizing, and exploring large collections of documents. Probabilistic topic models, such as latent Dirichlet allocation (LDA),…

Information Retrieval · Computer Science 2021-12-07 Bahareh Harandizadeh , J. Hunter Priniski , Fred Morstatter

Modeling topics effectively in short texts, such as tweets and news snippets, is crucial to capturing rapidly evolving social trends. Existing topic models often struggle to accurately capture the underlying semantic patterns of short…

Computation and Language · Computer Science 2025-02-18 Shuyu Chang , Rui Wang , Peng Ren , Qi Wang , Haiping Huang

Topic models have proven to be a useful tool for discovering latent structures in document collections. However, most document collections often come as temporal streams and thus several aspects of the latent structure such as the number of…

Information Retrieval · Computer Science 2012-03-19 Amr Ahmed , Eric P. Xing

Real-time and human-interpretable decision-making in cyber-physical systems is a significant but challenging task, which usually requires predictions of possible future events from limited data. In this paper, we introduce a…

Machine Learning · Computer Science 2021-12-30 Erfan Aasi , Mingyu Cai , Cristian Ioan Vasile , Calin Belta

Tracking and collecting fast-evolving online discussions provides vast data for studying social media usage and its role in people's public lives. However, collecting social media data using a static set of keywords fails to satisfy the…

Social and Information Networks · Computer Science 2021-02-26 Maya Srikanth , Anqi Liu , Nicholas Adams-Cohen , Jian Cao , R. Michael Alvarez , Anima Anandkumar

Twitter serves as a data source for many Natural Language Processing (NLP) tasks. It can be challenging to identify topics on Twitter due to continuous updating data stream. In this paper, we present an unsupervised graph based framework to…

Computation and Language · Computer Science 2021-04-19 Xiaonan Jing , Qingyuan Hu , Yi Zhang , Julia Taylor Rayz

Topic modeling is one of the most powerful techniques in text mining for data mining, latent data discovery, and finding relationships among data, text documents. Researchers have published many articles in the field of topic modeling and…

Information Retrieval · Computer Science 2018-12-07 Hamed Jelodar , Yongli Wang , Chi Yuan , Xia Feng , Xiahui Jiang , Yanchao Li , Liang Zhao

This paper proposes a novel Self-Supervised Intrusion Detection (SSID) framework, which enables a fully online Deep Learning (DL) based Intrusion Detection System (IDS) that requires no human intervention or prior off-line learning. The…

Cryptography and Security · Computer Science 2024-05-16 Mert Nakıp , Erol Gelenbe

Topic modeling, a method for extracting the underlying themes from a collection of documents, is an increasingly important component of the design of intelligent systems enabling the sense-making of highly dynamic and diverse streams of…

Information Retrieval · Computer Science 2019-10-07 Chris Gropp , Alexander Herzog , Ilya Safro , Paul W. Wilson , Amy W. Apon

We present a framework for large-scale sentiment and topic analysis of Twitter discourse. Our pipeline begins with targeted data collection using conflict-specific keywords, followed by automated sentiment labeling via multiple pre-trained…

Computation and Language · Computer Science 2025-05-06 Yiwen Lu , Siheng Xiong , Zhaowei Li

Topic modeling is admittedly a convenient way to monitor markets trend. Conventionally, Latent Dirichlet Allocation, LDA, is considered a must-do model to gain this type of information. By given the merit of deducing keyword with token…

Computation and Language · Computer Science 2023-09-19 Ching-Hsun Tseng , Shin-Jye Lee , Po-Wei Cheng , Chien Lee , Chih-Chieh Hung

Topic modeling is a fundamental task in natural language processing, allowing the discovery of latent thematic structures in text corpora. While Large Language Models (LLMs) have demonstrated promising capabilities in topic discovery, their…

Computation and Language · Computer Science 2025-06-03 Xiaohao Yang , He Zhao , Weijie Xu , Yuanyuan Qi , Jueqing Lu , Dinh Phung , Lan Du