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Topic models provide a useful method for dimensionality reduction and exploratory data analysis in large text corpora. Most approaches to topic model inference have been based on a maximum likelihood objective. Efficient algorithms exist…

Machine Learning · Computer Science 2012-12-20 Sanjeev Arora , Rong Ge , Yoni Halpern , David Mimno , Ankur Moitra , David Sontag , Yichen Wu , Michael Zhu

We describe an open-source toolkit for neural machine translation (NMT). The toolkit prioritizes efficiency, modularity, and extensibility with the goal of supporting NMT research into model architectures, feature representations, and…

Computation and Language · Computer Science 2017-03-07 Guillaume Klein , Yoon Kim , Yuntian Deng , Jean Senellart , Alexander M. Rush

Topic models are statistical methods that extract underlying topics from document collections. When performing topic modeling, a user usually desires topics that are coherent, diverse between each other, and that constitute good document…

Computation and Language · Computer Science 2022-02-16 Silvia Terragni , Ismail Harrando , Pasquale Lisena , Raphael Troncy , Elisabetta Fersini

Topic models have been extensively used to organize and interpret the contents of large, unstructured corpora of text documents. Although topic models often perform well on traditional training vs. test set evaluations, it is often the case…

Computation and Language · Computer Science 2017-07-04 Kelsey MacMillan , James D. Wilson

Topic Modeling is an approach used for automatic comprehension and classification of data in a variety of settings, and perhaps the canonical application is in uncovering thematic structure in a corpus of documents. A number of foundational…

Machine Learning · Computer Science 2012-04-13 Sanjeev Arora , Rong Ge , Ankur Moitra

Topic models provide a flexible and principled framework for exploring hidden structure in high-dimensional co-occurrence data and are commonly used natural language processing (NLP) of text. In this paper, we design and implement a Java…

Computation and Language · Computer Science 2020-10-29 Yang Qian , Yuanchun Jiang , Yidong Chai , Yezheng Liu , Jiansha Sun

The performance of large language models (LLMs) is significantly affected by the quality and composition of their pre-training data, which is inherently diverse, spanning various languages, sources, and topics. Effectively integrating these…

Computation and Language · Computer Science 2025-08-11 Jiahui Peng , Xinlin Zhuang , Jiantao Qiu , Ren Ma , Jing Yu , He Zhu , Conghui He

Topic models are used to identify and group similar themes in a set of documents. Recent advancements in deep learning based neural topic models has received significant research interest. In this paper, an approach is proposed that further…

Computation and Language · Computer Science 2024-10-15 Trishia Khandelwal

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

TOPCAT is a desktop application for interactive analysis of tabular data, especially source catalogues. Along with its command-line counterpart STILTS, it has been under more or less continuous development for the past 15 years and is now…

Instrumentation and Methods for Astrophysics · Physics 2017-11-07 Mark Taylor

Topic models and all their variants analyse text by learning meaningful representations through word co-occurrences. As pointed out by Williamson et al. (2010), such models implicitly assume that the probability of a topic to be active and…

Computation and Language · Computer Science 2023-01-27 Kostadin Cvejoski , Ramsés J. Sánchez , César Ojeda

We present AutoNMT, a framework to streamline the research of seq-to-seq models by automating the data pipeline (i.e., file management, data preprocessing, and exploratory analysis), automating experimentation in a toolkit-agnostic manner,…

Computation and Language · Computer Science 2023-02-13 Salvador Carrión , Francisco Casacuberta

Social media platforms host discussions about a wide variety of topics that arise everyday. Making sense of all the content and organising it into categories is an arduous task. A common way to deal with this issue is relying on topic…

Computation and Language · Computer Science 2022-09-21 Dimosthenis Antypas , Asahi Ushio , Jose Camacho-Collados , Leonardo Neves , Vítor Silva , Francesco Barbieri

News recommender systems are devised to alleviate the information overload, attracting more and more researchers' attention in recent years. The lack of a dedicated learner-oriented news recommendation toolkit hinders the advancement of…

Information Retrieval · Computer Science 2026-04-17 Rongyao Wang , Veronica Liesaputra , Zhiyi Huang

Imitation learning field requires expert data to train agents in a task. Most often, this learning approach suffers from the absence of available data, which results in techniques being tested on its dataset. Creating datasets is a…

Machine Learning · Computer Science 2024-03-04 Nathan Gavenski , Michael Luck , Odinaldo Rodrigues

Statistical topic models efficiently facilitate the exploration of large-scale data sets. Many models have been developed and broadly used to summarize the semantic structure in news, science, social media, and digital humanities. However,…

Machine Learning · Computer Science 2016-12-02 Jian Tang , Cheng Li , Ming Zhang , Qiaozhu Mei

Topic models are widely used to analyze document collections. While they are valuable for discovering latent topics in a corpus when analysts are unfamiliar with the corpus, analysts also commonly start with an understanding of the content…

Computation and Language · Computer Science 2024-07-01 Garima Dhanania , Sheshera Mysore , Chau Minh Pham , Mohit Iyyer , Hamed Zamani , Andrew McCallum

We propose a topic modeling approach to the prediction of preferences in pairwise comparisons. We develop a new generative model for pairwise comparisons that accounts for multiple shared latent rankings that are prevalent in a population…

Machine Learning · Computer Science 2015-01-27 Weicong Ding , Prakash Ishwar , Venkatesh Saligrama

Topic models are some of the most popular ways to represent textual data in an interpret-able manner. Recently, advances in deep generative models, specifically auto-encoding variational Bayes (AEVB), have led to the introduction of…

Information Retrieval · Computer Science 2022-04-08 Jeffrey Chiu , Rajat Mittal , Neehal Tumma , Abhishek Sharma , Finale Doshi-Velez

The emerging neural topic models make topic modeling more easily adaptable and extendable in unsupervised text mining. However, the existing neural topic models is difficult to retain representative information of the documents within the…

Computation and Language · Computer Science 2022-03-15 Kang Xu , Xiaoqiu Lu , Yuan-fang Li , Tongtong Wu , Guilin Qi , Ning Ye , Dong Wang , Zheng Zhou