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Inverted file structure is a common technique for accelerating dense retrieval. It clusters documents based on their embeddings; during searching, it probes nearby clusters w.r.t. an input query and only evaluates documents within them by…

Information Retrieval · Computer Science 2023-10-18 Peitian Zhang , Zheng Liu , Shitao Xiao , Zhicheng Dou , Jing Yao

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

Spectral topic modeling algorithms operate on matrices/tensors of word co-occurrence statistics to learn topic-specific word distributions. This approach removes the dependence on the original documents and produces substantial gains in…

Computation and Language · Computer Science 2017-11-21 Moontae Lee , David Bindel , David Mimno

Classical search engines using indexing methods in data infrastructures primarily allow keyword-based queries to retrieve content. While these indexing-based methods are highly scalable and efficient, due to a lack of an appropriate…

Information Retrieval · Computer Science 2025-09-30 Nafis Tanveer Islam , Zhiming Zhao

One task that is included in managing documents is how to find substantial information inside. Topic modeling is a technique that has been developed to produce document representation in form of keywords. The keywords will be used in the…

Computation and Language · Computer Science 2015-12-03 Derwin Suhartono

Topic modeling is used for discovering latent semantic structure, usually referred to as topics, in a large collection of documents. The most widely used methods are Latent Dirichlet Allocation and Probabilistic Latent Semantic Analysis.…

Computation and Language · Computer Science 2020-08-24 Dimo Angelov

Medication Extraction and Mining play an important role in healthcare NLP research due to its practical applications in hospital settings, such as their mapping into standard clinical knowledge bases (SNOMED-CT, BNF, etc.). In this work, we…

Computation and Language · Computer Science 2024-12-31 Pablo Romero , Lifeng Han , Goran Nenadic

Domain-specific languages that use a lot of specific terminology often fall into the category of low-resource languages. Collecting test datasets in a narrow domain is time-consuming and requires skilled human resources with domain…

Computation and Language · Computer Science 2024-12-16 Anastasia Zhukova , Christian E. Matt , Bela Gipp

Hierarchical latent tree analysis (HLTA) is recently proposed as a new method for topic detection. It differs fundamentally from the LDA-based methods in terms of topic definition, topic-document relationship, and learning method. It has…

Machine Learning · Computer Science 2015-08-06 Peixian Chen , Nevin L. Zhang , Leonard K. M. Poon , Zhourong Chen

Topic modeling based on latent Dirichlet allocation (LDA) has been a framework of choice to perform scene recognition and annotation. Recently, a new type of topic model called the Document Neural Autoregressive Distribution Estimator…

Computer Vision and Pattern Recognition · Computer Science 2013-05-24 Yin Zheng , Yu-Jin Zhang , Hugo Larochelle

Text clustering serves as a fundamental technique for organizing and interpreting unstructured textual data, particularly in contexts where manual annotation is prohibitively costly. With the rapid advancement of Large Language Models…

Computation and Language · Computer Science 2025-10-08 Chen Huang , Guoxiu He

Large Language Models (LLM) have revolutionized Natural Language Processing (NLP), improving state-of-the-art and exhibiting emergent capabilities across various tasks. However, their application in extracting information from visually rich…

Computation and Language · Computer Science 2024-06-25 Vincent Perot , Kai Kang , Florian Luisier , Guolong Su , Xiaoyu Sun , Ramya Sree Boppana , Zilong Wang , Zifeng Wang , Jiaqi Mu , Hao Zhang , Chen-Yu Lee , Nan Hua

Large Language Models (LLMs) are a powerful tool for statistical text analysis, with derived sequences of next-token probability distributions offering a wealth of information. Extracting this signal typically relies on metrics such as…

Topic modeling is a widely used technique for uncovering thematic structures from large text corpora. However, most topic modeling approaches e.g. Latent Dirichlet Allocation (LDA) struggle to capture nuanced semantics and contextual…

Information Retrieval · Computer Science 2024-09-25 Satya Kapoor , Alex Gil , Sreyoshi Bhaduri , Anshul Mittal , Rutu Mulkar

We apply cross-lingual Latent Semantic Indexing to the Bilingual Document Alignment Task at WMT16. Reduced-rank singular value decomposition of a bilingual term-document matrix derived from known English/French page pairs in the training…

Computation and Language · Computer Science 2017-08-01 Ulrich Germann

This paper proposes a diffusion-based auto-bidding framework that leverages graph representations to model large-scale auction environments. In such settings, agents must dynamically optimize bidding strategies under constraints defined by…

Machine Learning · Computer Science 2025-04-22 Dom Huh , Prasant Mohapatra

Nowadays, classical count-based word embeddings using positive pointwise mutual information (PPMI) weighted co-occurrence matrices have been widely superseded by machine-learning-based methods like word2vec and GloVe. But these methods are…

Computation and Language · Computer Science 2020-06-23 Jakob Jungmaier , Nora Kassner , Benjamin Roth

Most recently, researchers have started building large language models (LLMs) powered data systems that allow users to analyze unstructured text documents like working with a database because LLMs are very effective in extracting attributes…

Databases · Computer Science 2025-07-14 Zhaoze Sun , Qiyan Deng , Chengliang Chai , Kaisen Jin , Xinyu Guo , Han Han , Ye Yuan , Guoren Wang , Lei Cao

Clustering short text is a difficult problem, due to the low word co-occurrence between short text documents. This work shows that large language models (LLMs) can overcome the limitations of traditional clustering approaches by generating…

Computation and Language · Computer Science 2025-04-08 Justin K. Miller , Tristram J. Alexander

Text clustering is an important method for organising the increasing volume of digital content, aiding in the structuring and discovery of hidden patterns in uncategorised data. The effectiveness of text clustering largely depends on the…

Computation and Language · Computer Science 2024-12-06 Alina Petukhova , João P. Matos-Carvalho , Nuno Fachada