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Contrastive representation learning is crucial in time series analysis as it alleviates the issue of data noise and incompleteness as well as sparsity of supervision signal. However, existing constrastive learning frameworks usually focus…

Machine Learning · Computer Science 2024-06-26 Haozhi Gao , Qianqian Ren , Jinbao Li

In this paper, we propose Precision-Informed Semantic Modeling (PRISM), a structured topic modeling framework combining the benefits of rich representations captured by LLMs with the low cost and interpretability of latent semantic…

Machine Learning · Computer Science 2026-04-06 Connor Douglas , Utkucan Balci , Joseph Aylett-Bullock

Large Language Models (LLMs) pose a new paradigm of modeling and computation for information tasks. Recommendation systems are a critical application domain poised to benefit significantly from the sequence modeling capabilities and world…

Factual consistency is an important quality in dialogue summarization. Large language model (LLM)-based automatic text summarization models generate more factually consistent summaries compared to those by smaller pretrained language…

Computation and Language · Computer Science 2024-06-24 Rongxin Zhu , Jey Han Lau , Jianzhong Qi

Assessing a cited paper's impact is typically done by analyzing its citation context in isolation within the citing paper. While this focuses on the most directly relevant text, it prevents relative comparisons across all the works a paper…

Digital Libraries · Computer Science 2026-04-24 Hannah Collison , Benjamin Van Durme , Daniel Khashabi

Financial markets change rapidly due to news, economic shifts, and geopolitical events. Quick reactions are vital for investors to avoid losses or capture short-term gains. As a result, concise financial news summaries are critical for…

Computational Engineering, Finance, and Science · Computer Science 2025-12-10 Nicolas Reche , Elvys Linhares-Pontes , Juan-Manuel Torres-Moreno

Recent progress in large language models (LLMs) has enabled the automated processing of lengthy documents even without supervised training on a task-specific dataset. Yet, their zero-shot performance in complex tasks as opposed to…

Computation and Language · Computer Science 2025-11-12 WonJin Yoon , Boyu Ren , Spencer Thomas , Chanhwi Kim , Guergana Savova , Mei-Hua Hall , Timothy Miller

Many natural language processing tasks can be modeled into structured prediction and solved as a search problem. In this paper, we distill an ensemble of multiple models trained with different initialization into a single model. In addition…

Computation and Language · Computer Science 2018-05-30 Yijia Liu , Wanxiang Che , Huaipeng Zhao , Bing Qin , Ting Liu

Text summarization tasks commonly employ Pre-trained Language Models (PLMs) to fit diverse standard datasets. While these PLMs excel in automatic evaluations, they frequently underperform in human evaluations, indicating a deviation between…

Computation and Language · Computer Science 2024-10-02 Yang Han , Yiming Wang , Rui Wang , Lu Chen , Kai Yu

Entity search, i.e., finding the most similar entities to a query entity, faces unique challenges in e-commerce, where product similarity varies across categories and contexts. Traditional embedding-based approaches often struggle to…

Information Retrieval · Computer Science 2026-05-01 Yilun Zhu , Nikhita Vedula , Shervin Malmasi

Abstractive multi document summarization has evolved as a task through the basic sequence to sequence approaches to transformer and graph based techniques. Each of these approaches has primarily focused on the issues of multi document…

Computation and Language · Computer Science 2022-05-10 Aiswarya Sankar , Ankit Chadha

Contrastive learning based on instance discrimination trains model to discriminate different transformations of the anchor sample from other samples, which does not consider the semantic similarity among samples. This paper proposes a new…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Hao Li , Xiaopeng Zhang , Hongkai Xiong

The reasoning capabilities of Large Language Models (LLMs) play a critical role in many downstream tasks, yet depend strongly on the quality of training data. Despite various proposed data construction methods, their practical utility in…

Computation and Language · Computer Science 2025-10-09 Yike Zhao , Simin Guo , Ziqing Yang , Shifan Han , Dahua Lin , Fei Tan

This research proposes a systematic, large language model (LLM) approach for extracting product and service attributes, features, and associated sentiments from customer reviews. Grounded in marketing theory, the framework distinguishes…

Machine Learning · Statistics 2025-10-23 Khaled Boughanmi , Kamel Jedidi , Nour Jedidi

While state-of-the-art contrastive Self-Supervised Learning (SSL) models produce results competitive with their supervised counterparts, they lack the ability to infer latent variables. In contrast, prescribed latent variable (LV) models…

Machine Learning · Computer Science 2021-12-01 Jason Ramapuram , Dan Busbridge , Xavier Suau , Russ Webb

We introduce ClusterLLM, a novel text clustering framework that leverages feedback from an instruction-tuned large language model, such as ChatGPT. Compared with traditional unsupervised methods that builds upon "small" embedders,…

Computation and Language · Computer Science 2023-11-07 Yuwei Zhang , Zihan Wang , Jingbo Shang

Instruction tuning benefits from large and diverse datasets; however, creating such datasets involves a high cost of human labeling. While synthetic datasets generated by large language models (LLMs) have partly solved this issue, they…

Computation and Language · Computer Science 2024-08-28 Ritik Sachin Parkar , Jaehyung Kim , Jong Inn Park , Dongyeop Kang

Existed pre-trained models have achieved state-of-the-art performance on various text classification tasks. These models have proven to be useful in learning universal language representations. However, the semantic discrepancy between…

Machine Learning · Computer Science 2022-01-07 Jinhe Lan , Qingyuan Zhan , Chenhao Jiang , Kunping Yuan , Desheng Wang

Recent advances in Large Language Models (LLMs) have stimulated a surge of research aimed at extending their applications to the visual domain. While these models exhibit promise in generating abstract image captions and facilitating…

Computation and Language · Computer Science 2023-10-27 Geewook Kim , Hodong Lee , Daehee Kim , Haeji Jung , Sanghee Park , Yoonsik Kim , Sangdoo Yun , Taeho Kil , Bado Lee , Seunghyun Park

Contrastive Learning has emerged as a powerful representation learning method and facilitates various downstream tasks especially when supervised data is limited. How to construct efficient contrastive samples through data augmentation is…

Computation and Language · Computer Science 2021-11-30 Yangkai Du , Tengfei Ma , Lingfei Wu , Fangli Xu , Xuhong Zhang , Bo Long , Shouling Ji
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