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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

Traditionally, Latent Dirichlet Allocation (LDA) ingests words in a collection of documents to discover their latent topics using word-document co-occurrences. However, it is unclear how to achieve the best results for languages without…

Computation and Language · Computer Science 2021-08-25 Jin Cheevaprawatdomrong , Alexandra Schofield , Attapol T. Rutherford

The problem of topic modeling can be seen as a generalization of the clustering problem, in that it posits that observations are generated due to multiple latent factors (e.g., the words in each document are generated as a mixture of…

Machine Learning · Computer Science 2013-01-21 Animashree Anandkumar , Dean P. Foster , Daniel Hsu , Sham M. Kakade , Yi-Kai Liu

Latent Dirichlet Allocation (LDA) models trained without stopword removal often produce topics with high posterior probabilities on uninformative words, obscuring the underlying corpus content. Even when canonical stopwords are manually…

Computation and Language · Computer Science 2017-10-17 Angela Fan , Finale Doshi-Velez , Luke Miratrix

As electronically stored data grow in daily life, obtaining novel and relevant information becomes challenging in text mining. Thus people have sought statistical methods based on term frequency, matrix algebra, or topic modeling for text…

Information Retrieval · Computer Science 2019-07-04 Clint P. George , Wei Xia , George Michailidis

We present LDAExplore, a tool to visualize topic distributions in a given document corpus that are generated using Topic Modeling methods. Latent Dirichlet Allocation (LDA) is one of the basic methods that is predominantly used to generate…

Information Retrieval · Computer Science 2015-07-24 Ashwinkumar Ganesan , Kiante Brantley , Shimei Pan , Jian Chen

For organizing large text corpora topic modeling provides useful tools. A widely used method is Latent Dirichlet Allocation (LDA), a generative probabilistic model which models single texts in a collection of texts as mixtures of latent…

Computation and Language · Computer Science 2020-04-02 Jonas Rieger , Lars Koppers , Carsten Jentsch , Jörg Rahnenführer

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

One of the main computational and scientific challenges in the modern age is to extract useful information from unstructured texts. Topic models are one popular machine-learning approach which infers the latent topical structure of a…

Machine Learning · Statistics 2018-07-20 Martin Gerlach , Tiago P. Peixoto , Eduardo G. Altmann

Selecting in-domain data from a large pool of diverse and out-of-domain data is a non-trivial problem. In most cases simply using all of the available data will lead to sub-optimal and in some cases even worse performance compared to…

Computation and Language · Computer Science 2019-07-03 Mortaza , Doulaty , Thomas Hain

Latent Dirichlet Allocation (LDA) is a prominent generative probabilistic model used for uncovering abstract topics within document collections. In this paper, we explore the effectiveness of augmenting topic models with Large Language…

Computation and Language · Computer Science 2025-07-14 Mengze Hong , Chen Jason Zhang , Di Jiang

Standard LDA model suffers the problem that the topic assignment of each word is independent and word correlation hence is neglected. To address this problem, in this paper, we propose a model called Word Related Latent Dirichlet Allocation…

Computation and Language · Computer Science 2014-11-11 Xun Wang

Probabilistic topic models like Latent Dirichlet Allocation (LDA) have been previously extended to the bilingual setting. A fundamental modeling assumption in several of these extensions is that the input corpora are in the form of document…

Computation and Language · Computer Science 2021-12-01 Georgios Balikas , Massih-Reza Amini , Marianne Clausel

A common task in many political institutions (i.e. Parliament) is to find politicians who are experts in a particular field. In order to tackle this problem, the first step is to obtain politician profiles which include their interests, and…

Information Retrieval · Computer Science 2024-01-22 Luis M. de Campos , Juan M. Fernández-Luna , Juan F. Huete , Luis Redondo-Expósito

Extracting and identifying latent topics in large text corpora has gained increasing importance in Natural Language Processing (NLP). Most models, whether probabilistic models similar to Latent Dirichlet Allocation (LDA) or neural topic…

Computation and Language · Computer Science 2023-03-31 Anton Thielmann , Quentin Seifert , Arik Reuter , Elisabeth Bergherr , Benjamin Säfken

Nowadays, data analysis has become a problem as the amount of data is constantly increasing. In order to overcome this problem in textual data, many models and methods are used in natural language processing. The topic modeling field is one…

Computation and Language · Computer Science 2021-10-22 Zekeriya Anil Guven , Banu Diri , Tolgahan Cakaloglu

There has been an increasingly popular trend in Universities for curriculum transformation to make teaching more interactive and suitable for online courses. An increase in the popularity of online courses would result in an increase in the…

Information Retrieval · Computer Science 2020-11-03 Nikhil Fernandes , Alexandra Gkolia , Nicolas Pizzo , James Davenport , Akshar Nair

Topic modeling has found wide application in many problems where latent structures of the data are crucial for typical inference tasks. When applying a topic model, a relatively standard pre-processing step is to first build a vocabulary of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Yuzhen Ding , Baoxin Li

Analyzing journals and articles abstract text or documents using topic modelling and text clustering has become a modern solution for the increasing number of text documents. Topic modelling and text clustering are both intensely involved…

Information Retrieval · Computer Science 2025-08-25 Shadikur Rahman , Umme Ayman Koana , Aras M. Ismael , Karmand Hussein Abdalla

We investigate the problem of learning a topic model - the well-known Latent Dirichlet Allocation - in a distributed manner, using a cluster of C processors and dividing the corpus to be learned equally among them. We propose a simple…

Machine Learning · Computer Science 2009-09-28 James Petterson , Tiberio Caetano
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