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Existing approaches for low-resource text summarization primarily employ large language models (LLMs) like GPT-3 or GPT-4 at inference time to generate summaries directly; however, such approaches often suffer from inconsistent LLM outputs…

Computation and Language · Computer Science 2025-01-27 Gaurav Sahu , Olga Vechtomova , Issam H. Laradji

Large language models (LLMs) with extended context windows enable tasks requiring extensive information integration but are limited by the scarcity of high-quality, diverse datasets for long-context instruction tuning. Existing data…

Computation and Language · Computer Science 2025-02-25 Jiaxi Li , Xingxing Zhang , Xun Wang , Xiaolong Huang , Li Dong , Liang Wang , Si-Qing Chen , Wei Lu , Furu Wei

Large Multimodal Models (LMMs) have demonstrated impressive performance in short video understanding tasks but face great challenges when applied to long video understanding. In contrast, Large Language Models (LLMs) exhibit outstanding…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Hongchen Wei , Zhenzhong Chen

Recent advances in Large Language Models (LLMs) have been changing the paradigm of Recommender Systems (RS). However, when items in the recommendation scenarios contain rich textual information, such as product descriptions in online…

Information Retrieval · Computer Science 2024-03-21 Zhi Zheng , Wenshuo Chao , Zhaopeng Qiu , Hengshu Zhu , Hui Xiong

Despite the popularity of retrieval-augmented generation (RAG) as a solution for grounded QA in both academia and industry, current RAG methods struggle with questions where the necessary information is distributed across many documents or…

Computation and Language · Computer Science 2025-11-11 Nathan Scales , Nathanael Schärli , Olivier Bousquet

Limited by the context window size of Large Language Models(LLMs), handling various tasks with input tokens exceeding the upper limit has been challenging, whether it is a simple direct retrieval task or a complex multi-hop reasoning task.…

Computation and Language · Computer Science 2025-02-19 Xiaoju Ye , Zhichun Wang , Jingyuan Wang

Recent advances have extended the context window of frontier LLMs dramatically, from a few thousand tokens up to millions, enabling entire books and codebases to fit into context. However, the compute costs of inferencing long-context LLMs…

Information Retrieval · Computer Science 2024-12-10 Nicholas Alonso , Beren Millidge

As Large Language Models (LLMs) continue to evolve, more are being designed to handle long-context inputs. Despite this advancement, most of them still face challenges in accurately handling long-context tasks, often showing the "lost in…

Computation and Language · Computer Science 2024-12-13 Yijiong Yu , Yongfeng Huang , Zhixiao Qi , Zhe Zhou

Financial reports and earnings communications contain large volumes of structured and semi structured information, making detailed manual analysis inefficient. Earnings conference calls provide valuable evidence about a firm's performance,…

Computation and Language · Computer Science 2026-01-16 Tohida Rehman

Retrieval Augmented Generation (RAG) enhances language model performance by incorporating external knowledge retrieved from large corpora, which makes it highly suitable for tasks such as open domain question answering. Standard RAG systems…

Information Retrieval · Computer Science 2025-12-17 Malika Iratni , Mohand Boughanem , Taoufiq Dkaki

Although large language models (LLMs) demonstrate strong text generation capabilities, they struggle in scenarios requiring access to structured knowledge bases or specific documents, limiting their effectiveness in knowledge-intensive…

Computation and Language · Computer Science 2025-01-24 Gustavo Kuratomi , Paulo Pirozelli , Fabio G. Cozman , Sarajane M. Peres

Retrieval-augmented generation (RAG) has emerged as a promising paradigm for enhancing large language models (LLMs) on multi-hop question answering (QA), which requires reasoning over evidence from multiple documents. Current multi-hop RAG…

Computation and Language · Computer Science 2026-05-28 Yikai Zhu , Kunfeng Chen , Qihuang Zhong , Juhua Liu , Bo Du

LLMs confront inherent limitations in terms of its knowledge, memory, and action. The retrieval augmentation stands as a vital mechanism to address these limitations, which brings in useful information from external sources to augment the…

Information Retrieval · Computer Science 2026-01-06 Peitian Zhang , Shitao Xiao , Zheng Liu , Zhicheng Dou , Jian-Yun Nie

Retrieval-augmented generation (RAG) techniques have emerged as a promising solution to enhance the reliability of large language models (LLMs) by addressing issues like hallucinations, outdated knowledge, and domain adaptation. In…

Computation and Language · Computer Science 2025-01-28 Weihang Su , Yichen Tang , Qingyao Ai , Junxi Yan , Changyue Wang , Hongning Wang , Ziyi Ye , Yujia Zhou , Yiqun Liu

Document retrieval is one of the most challenging tasks in Information Retrieval. It requires handling longer contexts, often resulting in higher query latency and increased computational overhead. Recently, Learned Sparse Retrieval (LSR)…

Information Retrieval · Computer Science 2025-04-09 Emmanouil Georgios Lionis , Jia-Huei Ju

While holding great promise for improving and facilitating healthcare, large language models (LLMs) struggle to produce up-to-date responses on evolving topics due to outdated knowledge or hallucination. Retrieval-augmented generation (RAG)…

Computation and Language · Computer Science 2024-12-23 Gongbo Zhang , Zihan Xu , Qiao Jin , Fangyi Chen , Yilu Fang , Yi Liu , Justin F. Rousseau , Ziyang Xu , Zhiyong Lu , Chunhua Weng , Yifan Peng

Retrieval and recommendation are two essential tasks in modern search tools. This paper introduces a novel retrieval-reranking framework leveraging Large Language Models (LLMs) to enhance the spatiotemporal and semantic associated mining…

Information Retrieval · Computer Science 2024-11-21 Yuanyuan Tian , Wenwen Li , Lei Hu , Xiao Chen , Michael Brook , Michael Brubaker , Fan Zhang , Anna K. Liljedahl

In real-world applications with Large Language Models (LLMs), external retrieval mechanisms - such as Search-Augmented Generation (SAG), tool utilization, and Retrieval-Augmented Generation (RAG) - are often employed to enhance the quality…

Computation and Language · Computer Science 2025-02-25 Tzu-Lin Kuo , Feng-Ting Liao , Mu-Wei Hsieh , Fu-Chieh Chang , Po-Chun Hsu , Da-Shan Shiu

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by incorporating external knowledge. Current hybrid RAG system retrieves evidence from both knowledge graphs (KGs) and text documents to support LLM reasoning.…

Computation and Language · Computer Science 2025-09-22 Xingyu Tan , Xiaoyang Wang , Qing Liu , Xiwei Xu , Xin Yuan , Liming Zhu , Wenjie Zhang

Recent advancements in large language models (LLMs) with extended context windows have significantly improved tasks such as information extraction, question answering, and complex planning scenarios. In order to achieve success in long…

Computation and Language · Computer Science 2025-05-20 Zhi Chen , Qiguang Chen , Libo Qin , Qipeng Guo , Haijun Lv , Yicheng Zou , Wanxiang Che , Hang Yan , Kai Chen , Dahua Lin
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