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As one of the most advanced techniques in AI, Retrieval-Augmented Generation (RAG) can offer reliable and up-to-date external knowledge, providing huge convenience for numerous tasks. Particularly in the era of AI-Generated Content (AIGC),…

Computation and Language · Computer Science 2024-06-18 Wenqi Fan , Yujuan Ding , Liangbo Ning , Shijie Wang , Hengyun Li , Dawei Yin , Tat-Seng Chua , Qing Li

While Retrieval-Augmented Generation (RAG) systems enhance Large Language Models (LLMs) by incorporating external knowledge, they still face persistent challenges in retrieval inefficiency and the inability of LLMs to filter out irrelevant…

Computation and Language · Computer Science 2025-02-13 Ruobing Yao , Yifei Zhang , Shuang Song , Yuhua Liu , Neng Gao , Chenyang Tu

Short answer assessment is a vital component of science education, allowing evaluation of students' complex three-dimensional understanding. Large language models (LLMs) that possess human-like ability in linguistic tasks are increasingly…

Computation and Language · Computer Science 2025-06-05 Yucheng Chu , Peng He , Hang Li , Haoyu Han , Kaiqi Yang , Yu Xue , Tingting Li , Joseph Krajcik , Jiliang Tang

Conducting literature reviews for scientific papers is essential for understanding research, its limitations, and building on existing work. It is a tedious task which makes an automatic literature review generator appealing. Unfortunately,…

Large Language Models (LLMs) enhanced with retrieval -- commonly referred to as Retrieval-Augmented Generation (RAG) -- have demonstrated strong performance in knowledge-intensive tasks. However, RAG pipelines often fail when retrieved…

Computation and Language · Computer Science 2025-11-07 Shiyin Lin

Retrieval-augmented language models can better adapt to changes in world state and incorporate long-tail knowledge. However, most existing methods retrieve only short contiguous chunks from a retrieval corpus, limiting holistic…

Computation and Language · Computer Science 2024-02-01 Parth Sarthi , Salman Abdullah , Aditi Tuli , Shubh Khanna , Anna Goldie , Christopher D. Manning

Large Language Models (LLMs) are prone to generating factually incorrect information when responding to queries that involve numerical and statistical data or other timely facts. In this paper, we present an approach for enhancing the…

Computation and Language · Computer Science 2024-09-24 Prashanth Radhakrishnan , Jennifer Chen , Bo Xu , Prem Ramaswami , Hannah Pho , Adriana Olmos , James Manyika , R. V. Guha

The drafting of documents in the procurement field has progressively become more complex and diverse, driven by the need to meet legal requirements, adapt to technological advancements, and address stakeholder demands. While large language…

Computation and Language · Computer Science 2024-10-15 Yilong Zhao , Daifeng Li

Repository-level code generation remains challenging due to complex code dependencies and the limitations of large language models (LLMs) in processing long contexts. While retrieval-augmented generation (RAG) frameworks are widely adopted,…

Software Engineering · Computer Science 2025-03-27 Wenchao Gu , Juntao Chen , Yanlin Wang , Tianyue Jiang , Xingzhe Li , Mingwei Liu , Xilin Liu , Yuchi Ma , Zibin Zheng

Retrieval-Augmented Generation (RAG) lifts the factuality of Large Language Models (LLMs) by injecting external knowledge, yet it falls short on problems that demand multi-step inference; conversely, purely reasoning-oriented approaches…

Current large language models (LLMs) can exhibit near-human levels of performance on many natural language tasks, including open-domain question answering. Unfortunately, they also convincingly hallucinate incorrect answers, so that…

Information Retrieval · Computer Science 2023-06-27 Siqing Huo , Negar Arabzadeh , Charles L. A. Clarke

For middle-school math students, interactive question-answering (QA) with tutors is an effective way to learn. The flexibility and emergent capabilities of generative large language models (LLMs) has led to a surge of interest in automating…

Computation and Language · Computer Science 2023-11-14 Zachary Levonian , Chenglu Li , Wangda Zhu , Anoushka Gade , Owen Henkel , Millie-Ellen Postle , Wanli Xing

Augmenting Large Language Models (LLMs) with retrieved external knowledge has proven effective for improving the factual accuracy of generated responses. Despite their success, retrieval-augmented LLMs still face the distractibility issue,…

Computation and Language · Computer Science 2025-02-18 Zexuan Qiu , Zijing Ou , Bin Wu , Jingjing Li , Aiwei Liu , Irwin King

New technologies in generative AI can enable deeper analysis into our nation's supply chains but truly informative insights require the continual updating and aggregation of massive data in a timely manner. Large Language Models (LLMs)…

Large Language Models (LLMs) showcase impressive capabilities but encounter challenges like hallucination, outdated knowledge, and non-transparent, untraceable reasoning processes. Retrieval-Augmented Generation (RAG) has emerged as a…

Computation and Language · Computer Science 2024-03-28 Yunfan Gao , Yun Xiong , Xinyu Gao , Kangxiang Jia , Jinliu Pan , Yuxi Bi , Yi Dai , Jiawei Sun , Meng Wang , Haofen Wang

Despite the dramatic progress in Large Language Model (LLM) development, LLMs often provide seemingly plausible but not factual information, often referred to as hallucinations. Retrieval-augmented LLMs provide a non-parametric approach to…

Computation and Language · Computer Science 2023-11-09 Sai Munikoti , Anurag Acharya , Sridevi Wagle , Sameera Horawalavithana

Retrieval-Augmented Generation (RAG) has been widely adopted to enhance Large Language Models (LLMs) in knowledge-intensive tasks. To enhance credibility and verifiability in RAG systems, Attributed Text Generation (ATG) is proposed, which…

Computation and Language · Computer Science 2025-05-26 Sirui Xia , Xintao Wang , Jiaqing Liang , Yifei Zhang , Weikang Zhou , Jiaji Deng , Fei Yu , Yanghua Xiao

The quality of answers generated by large language models (LLMs) in retrieval-augmented generation (RAG) is largely influenced by the contextual information contained in the retrieved documents. A key challenge for improving RAG is to…

Information Retrieval · Computer Science 2026-01-22 Fangzheng Tian , Debasis Ganguly , Craig Macdonald

Patient-trial matching requires reasoning over long, heterogeneous electronic health records (EHRs) and complex eligibility criteria, posing significant challenges for scalability, generalization, and computational efficiency. Existing…

Computation and Language · Computer Science 2026-04-27 Xiaodi Li , Yang Xiao , Munhwan Lee , Konstantinos Leventakos , Young J. Juhn , David Jones , Terence T. Sio , Wei Liu , Maria Vassilaki , Nansu Zong

Retrieval-augmented generation (RAG) is typically optimized for topical relevance, yet its success ultimately depends on whether retrieved passages are useful for a large language model (LLM) to generate correct and complete answers. We…

Computation and Language · Computer Science 2026-01-28 Hengran Zhang , Keping Bi , Jiafeng Guo , Jiaming Zhang , Shuaiqiang Wang , Dawei Yin , Xueqi Cheng