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Large language models (LLMs) have demonstrated remarkable capabilities in a wide range of tasks, yet their application to specialized domains remains challenging due to the need for deep expertise. Retrieval-Augmented generation (RAG) has…

Computation and Language · Computer Science 2025-09-30 Qinggang Zhang , Shengyuan Chen , Yuanchen Bei , Zheng Yuan , Huachi Zhou , Zijin Hong , Hao Chen , Yilin Xiao , Chuang Zhou , Junnan Dong , Yi Chang , Xiao Huang

Large Language Models (LLMs) have demonstrated significant performance improvements across various cognitive tasks. An emerging application is using LLMs to enhance retrieval-augmented generation (RAG) capabilities. These systems require…

Computation and Language · Computer Science 2025-01-28 Satyapriya Krishna , Kalpesh Krishna , Anhad Mohananey , Steven Schwarcz , Adam Stambler , Shyam Upadhyay , Manaal Faruqui

Recommender systems are essential for guiding users through the vast and diverse landscape of digital content by delivering personalized and relevant suggestions. However, improving both personalization and interpretability remains a…

Information Retrieval · Computer Science 2025-08-05 Danial Ebrat , Tina Aminian , Sepideh Ahmadian , Luis Rueda

Centralized RAG pipelines struggle with heterogeneous and privacy-sensitive data, especially in distributed healthcare settings where patient data spans SQL, knowledge graphs, and clinical notes. Clinicians face difficulties retrieving rare…

Artificial Intelligence · Computer Science 2025-09-09 Cheng Qian , Hainan Zhang , Yongxin Tong , Hong-Wei Zheng , Zhiming Zheng

Large Language Models (LLMs) are smart but forgetful. Recent studies, (e.g., (Bubeck et al., 2023)) on modern LLMs have shown that they are capable of performing amazing tasks typically necessitating human-level intelligence. However,…

Computation and Language · Computer Science 2023-11-08 Eric Melz

Recently, Retrieval-Augmented Generation (RAG) has achieved remarkable success in addressing the challenges of Large Language Models (LLMs) without necessitating retraining. By referencing an external knowledge base, RAG refines LLM…

Artificial Intelligence · Computer Science 2024-09-11 Boci Peng , Yun Zhu , Yongchao Liu , Xiaohe Bo , Haizhou Shi , Chuntao Hong , Yan Zhang , Siliang Tang

Federated Learning (FL) is gaining prominence in machine learning as privacy concerns grow. This paradigm allows each client (e.g., an individual online store) to train a recommendation model locally while sharing only model updates,…

Machine Learning · Computer Science 2025-10-09 Jongwon Park , Minku Kang , Wooseok Sim , Soyoung Lee , Hogun Park

Retrieval-Augmented Generation (RAG) significantly enhances Large Language Models (LLMs) by providing access to external knowledge. However, current research primarily focuses on retrieval quality, often overlooking the critical…

Computation and Language · Computer Science 2026-04-16 Zhengyi Zhao , Shubo Zhang , Zezhong Wang , Yuxi Zhang , Huimin Wang , Yutian Zhao , Yefeng Zheng , Binyang Li , Kam-Fai Wong , Xian Wu

Large Language Models (LLMs) have become foundational tools in artificial intelligence, supporting a wide range of applications beyond traditional natural language processing, including urban systems and tourist recommendations. However,…

Information Retrieval · Computer Science 2025-12-05 Maddalena Amendola , Chiara Pugliese , Raffaele Perego , Chiara Renso

The recent advancements in Large Language Models (LLMs) have generated considerable interest in their utilization for sequential recommendation tasks. While collaborative signals from similar users are central to recommendation modeling,…

Information Retrieval · Computer Science 2025-04-15 Tong Zhang

Large language models (LLMs) have transformed various sectors, including education, finance, and medicine, by enhancing content generation and decision-making processes. However, their integration into the medical field is cautious due to…

Information Retrieval · Computer Science 2025-04-15 Yifan Feng , Hao Hu , Xingliang Hou , Shiquan Liu , Shihui Ying , Shaoyi Du , Han Hu , Yue Gao

Large Language Models (LLMs) often generate inaccurate responses (hallucinations) when faced with questions beyond their knowledge scope. Retrieval-Augmented Generation (RAG) addresses this by leveraging external knowledge, but a critical…

Information Retrieval · Computer Science 2025-09-10 Haoxiang Jin , Ronghan Li , Zixiang Lu , Qiguang Miao

Retrieval-augmented generation (RAG) has been widely adopted to ground large language models (LLMs) in external knowledge, yet it remains largely underexplored for improving reasoning. Existing methods either rely on online exploration…

Artificial Intelligence · Computer Science 2026-02-10 Jiaxiang Chen , Zhuo Wang , Mingxi Zou , Qifan Wang , Zenglin Xu

Knowing that the generative capabilities of large language models (LLM) are sometimes hampered by tendencies to hallucinate or create non-factual responses, researchers have increasingly focused on methods to ground generated outputs in…

Information Retrieval · Computer Science 2024-11-20 Sonal Prabhune , Donald J. Berndt

Collaborative information from user-item interactions is a fundamental source of signal in successful recommender systems. Recently, researchers have attempted to incorporate this knowledge into large language model-based recommender…

Information Retrieval · Computer Science 2026-03-24 Shahrooz Pouryousef , Ali Montazeralghaem

Retrieval-augmented generation (RAG) augments large language models (LLM) by retrieving relevant knowledge, showing promising potential in mitigating LLM hallucinations and enhancing response quality, thereby facilitating the great adoption…

Computation and Language · Computer Science 2024-01-30 Yixuan Tang , Yi Yang

The emergence of Retrieval-augmented generation (RAG) has alleviated the issues of outdated and hallucinatory content in the generation of large language models (LLMs), yet it still reveals numerous limitations. When a general-purpose LLM…

Computation and Language · Computer Science 2024-12-20 Jiayi Wu , Hengyi Cai , Lingyong Yan , Hao Sun , Xiang Li , Shuaiqiang Wang , Dawei Yin , Ming Gao

Retrieval-Augmented Generation (RAG) systems are usually defined by the combination of a generator and a retrieval component that extracts textual context from a knowledge base to answer user queries. However, such basic implementations…

Computation and Language · Computer Science 2026-04-21 Pietro Ferrazzi , Milica Cvjeticanin , Alessio Piraccini , Davide Giannuzzi

Implementing Retrieval-Augmented Generation (RAG) systems is inherently complex, requiring deep understanding of data, use cases, and intricate design decisions. Additionally, evaluating these systems presents significant challenges,…

Computation and Language · Computer Science 2024-08-06 Daniel Fleischer , Moshe Berchansky , Moshe Wasserblat , Peter Izsak

Retrieval-Augmented Generation (RAG) has demonstrated significant effectiveness in enhancing large language models (LLMs) for complex multi-hop question answering (QA). For multi-hop QA tasks, current iterative approaches predominantly rely…

Computation and Language · Computer Science 2026-01-19 Yuling Shi , Maolin Sun , Zijun Liu , Mo Yang , Yixiong Fang , Tianran Sun , Xiaodong Gu