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This article describes posterior maximization for topic models, identifying computational and conceptual gains from inference under a non-standard parametrization. We then show that fitted parameters can be used as the basis for a novel…

Applications · Statistics 2011-12-30 Matthew A. Taddy

Topic modeling is a key component in unsupervised learning, employed to identify topics within a corpus of textual data. The rapid growth of social media generates an ever-growing volume of textual data daily, making online topic modeling…

Machine Learning · Computer Science 2025-10-23 Federica Granese , Benjamin Navet , Serena Villata , Charles Bouveyron

Topic segmentation and labeling is often considered a prerequisite for higher-level conversation analysis and has been shown to be useful in many Natural Language Processing (NLP) applications. We present two new corpora of email and blog…

Computation and Language · Computer Science 2014-02-05 Shafiq Rayhan Joty , Giuseppe Carenini , Raymond T Ng

This article analyses and evaluates FDD\b{eta}, a supervised term-weighting scheme that can be applied for query-term selection in topic-based retrieval. FDD\b{eta} weights terms based on two factors representing the descriptive and…

Information Retrieval · Computer Science 2020-07-20 Mariano Maisonnave , Fernando Delbianco , Fernando Tohmé , Ana Maguitman

Response-free item difficulty modelling promises to reduce reliance on response-based calibration but is intrinsically difficult on reading-comprehension multiple-choice items, where difficulty depends on inferential demands across wording…

Computation and Language · Computer Science 2026-05-19 Jan Netík , Patrícia Martinková

As one of the prevalent topic mining tools, neural topic modeling has attracted a lot of interests for the advantages of high efficiency in training and strong generalisation abilities. However, due to the lack of context in each short…

Information Retrieval · Computer Science 2020-08-12 Jiachun Feng , Zusheng Zhang , Cheng Ding , Yanghui Rao , Haoran Xie

The extraction of aspect terms is a critical step in fine-grained sentiment analysis of text. Existing approaches for this task have yielded impressive results when the training and testing data are from the same domain. However, these…

Computation and Language · Computer Science 2022-10-20 Phillip Howard , Arden Ma , Vasudev Lal , Ana Paula Simoes , Daniel Korat , Oren Pereg , Moshe Wasserblat , Gadi Singer

Research on neural networks has focused on understanding a single model trained on a single dataset. However, relatively little is known about the relationships between different models, particularly those trained or tested on different…

Machine Learning · Computer Science 2023-10-16 Almog Gueta , Elad Venezian , Colin Raffel , Noam Slonim , Yoav Katz , Leshem Choshen

Mining a set of meaningful and distinctive topics automatically from massive text corpora has broad applications. Existing topic models, however, typically work in a purely unsupervised way, which often generate topics that do not fit…

Computation and Language · Computer Science 2020-01-29 Yu Meng , Jiaxin Huang , Guangyuan Wang , Zihan Wang , Chao Zhang , Yu Zhang , Jiawei Han

Automatic summarization plays an important role in the exponential document growth on the Web. On content websites such as CNN.com and WikiHow.com, there often exist various kinds of side information along with the main document for…

Computation and Language · Computer Science 2023-05-22 Xiuying Chen , Mingzhe Li , Shen Gao , Xin Cheng , Qiang Yang , Qishen Zhang , Xin Gao , Xiangliang Zhang

Large language models are now integrated into many scientific workflows, accelerating data analysis, hypothesis generation, and design space exploration. In parallel with this growth, there is a growing need to carefully evaluate whether…

There are growing interests in adapting large-scale language models using parameter-efficient fine-tuning methods. However, accelerating the model itself and achieving better inference efficiency through model compression has not been…

We introduce an approach to topic modelling with document-level covariates that remains tractable in the face of large text corpora. This is achieved by de-emphasizing the role of parameter estimation in an underlying probabilistic model,…

Methodology · Statistics 2025-11-05 Gabriel Phelan , David A. Campbell

Domain-specific quantitative reasoning remains a major challenge for large language models (LLMs), especially in fields requiring expert knowledge and complex question answering (QA). In this work, we propose Expert Question Decomposition…

Computation and Language · Computer Science 2025-10-03 Mengyu Wang , Sotirios Sabanis , Miguel de Carvalho , Shay B. Cohen , Tiejun Ma

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

The research explores the utilization of a deep learning model employing an attention mechanism in medical text mining. It targets the challenge of analyzing unstructured text information within medical data. This research seeks to enhance…

Computation and Language · Computer Science 2024-06-04 Lingxi Xiao , Muqing Li , Yinqiu Feng , Meiqi Wang , Ziyi Zhu , Zexi Chen

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

Existing topic modeling and text segmentation methodologies generally require large datasets for training, limiting their capabilities when only small collections of text are available. In this work, we reexamine the inter-related problems…

Information Retrieval · Computer Science 2021-05-26 Qiong Wu , Adam Hare , Sirui Wang , Yuwei Tu , Zhenming Liu , Christopher G. Brinton , Yanhua Li

As quantum computing (QC) continues to evolve in hardware and software, measuring progress in this complex and diverse field remains a challenge. To track progress, uncover bottlenecks, and evaluate community efforts, benchmarks play a…

Topic drift is a common phenomenon in multi-turn dialogue. Therefore, an ideal dialogue generation models should be able to capture the topic information of each context, detect the relevant context, and produce appropriate responses…

Computation and Language · Computer Science 2020-09-29 Hainan Zhang , Yanyan Lan , Liang Pang , Hongshen Chen , Zhuoye Ding , Dawei Yin
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