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Recent studies have proposed leveraging Large Language Models (LLMs) as information retrievers through query rewriting. However, for challenging corpora, we argue that enhancing queries alone is insufficient for robust semantic matching;…

信息检索 · 计算机科学 2025-06-24 Jingming Liu , Yumeng Li , Wei Shi , Yao-Xiang Ding , Hui Su , Kun Zhou

We introduce RE-Adapt, an approach to fine-tuning large language models on new domains without degrading any pre-existing instruction-tuning. We reverse engineer an adapter which isolates what an instruction-tuned model has learned beyond…

计算与语言 · 计算机科学 2024-05-27 William Fleshman , Benjamin Van Durme

Retrieval-Augmented Generation (RAG) has emerged as a prominent method for incorporating domain knowledge into Large Language Models (LLMs). While RAG enhances response relevance by incorporating retrieved domain knowledge in the context,…

计算与语言 · 计算机科学 2025-03-28 Kushagra Bhushan , Yatin Nandwani , Dinesh Khandelwal , Sonam Gupta , Gaurav Pandey , Dinesh Raghu , Sachindra Joshi

General-purpose large language models (LLMs) often struggle to generate reliable responses in specialized engineering domains due to limited domain grounding and insufficient exposure to structured technical knowledge. This study…

计算与语言 · 计算机科学 2026-05-14 Saiful Islam Sagor , Tania Haghighi , Minhaj Nur Alam , Erina Baynojir Joyee

Retrieval-Augmented Generation (RAG) has become ubiquitous when deploying Large Language Models (LLMs), as it can address typical limitations such as generating hallucinated or outdated information. However, when building real-world RAG…

计算与语言 · 计算机科学 2025-07-18 Patrice Béchard , Orlando Marquez Ayala

Large Language Models (LLMs) have catalyzed significant advancements in Natural Language Processing (NLP), yet they encounter challenges such as hallucination and the need for domain-specific knowledge. To mitigate these, recent…

计算与语言 · 计算机科学 2025-07-01 Yucheng Hu , Yuxing Lu

Retrieval-augmented generation (RAG) has demonstrated effectiveness in mitigating the hallucination problem of large language models (LLMs). However, the difficulty of aligning the retriever with the diverse LLMs' knowledge preferences…

计算与语言 · 计算机科学 2024-07-19 Guanting Dong , Yutao Zhu , Chenghao Zhang , Zechen Wang , Zhicheng Dou , Ji-Rong Wen

Information retrieval involves selecting artifacts from a corpus that are most relevant to a given search query. The flavor of retrieval typically used in classical applications can be termed as homogeneous and relaxed, where queries and…

信息检索 · 计算机科学 2023-10-10 Anirudh Khatry , Yasharth Bajpai , Priyanshu Gupta , Sumit Gulwani , Ashish Tiwari

Retrieval-augmented language models pose a promising alternative to standard language modeling. During pretraining, these models search in a corpus of documents for contextually relevant information that could aid the language modeling…

计算与语言 · 计算机科学 2024-04-18 David Samuel , Lucas Georges Gabriel Charpentier , Sondre Wold

Adaptive Retrieval-Augmented Generation aims to mitigate the interference of extraneous noise by dynamically determining the necessity of retrieving supplementary passages. However, as Large Language Models evolve with increasing robustness…

信息检索 · 计算机科学 2026-04-20 Jun Feng , Jiahui Tang , Zhicheng He , Hang Lv , Hongchao Gu , Hao Wang , Xuezhi Yang , Shuai Fang

Retrieval-augmented generation (RAG) enables large language models (LLMs) to produce evidence-based responses, and its performance hinges on the matching between the retriever and LLMs. Retriever optimization has emerged as an efficient…

机器学习 · 计算机科学 2026-02-04 Yicheng Zhang , Zhen Qin , Zhaomin Wu , Wenqi Zhang , Shuiguang Deng

The emergence of large language models (LLMs) has revolutionized machine learning and related fields, showcasing remarkable abilities in comprehending, generating, and manipulating human language. However, their conventional usage through…

Retrieval-Augmented Generation (RAG) has proven to be an effective method for mitigating hallucination issues inherent in large language models (LLMs). Previous approaches typically train retrievers based on semantic similarity, lacking…

信息检索 · 计算机科学 2024-11-07 Yuhang Liu , Xueyu Hu , Shengyu Zhang , Jingyuan Chen , Fan Wu , Fei Wu

Large Language Models~(LLMs) are prone to hallucinations, and Retrieval-Augmented Generation (RAG) helps mitigate this, but at a high computational cost while risking misinformation. Adaptive retrieval aims to retrieve only when necessary,…

While large language models (LLMs) have advanced the development of general-purpose agents, achieving robust generalization to unseen tasks remains a significant challenge. Current approaches typically rely on either fine-tuning or…

Large Language Models (LLMs) demonstrate remarkable capabilities, yet struggle with hallucination and outdated knowledge when tasked with complex knowledge reasoning, resulting in factually incorrect outputs. Previous studies have attempted…

计算与语言 · 计算机科学 2025-01-07 Derong Xu , Xinhang Li , Ziheng Zhang , Zhenxi Lin , Zhihong Zhu , Zhi Zheng , Xian Wu , Xiangyu Zhao , Tong Xu , Enhong Chen

Large language models (LLMs) exhibit enhanced capabilities in language understanding and generation. By utilizing their embedded knowledge, LLMs are increasingly used as conversational recommender systems (CRS), achieving improved…

信息检索 · 计算机科学 2026-04-14 Zhenrui Yue , Honglei Zhuang , Zhen Qin , Zhankui He , Huimin Zeng , Julian McAuley , Dong Wang

Retrieval augmentation is critical when Language Models (LMs) exploit non-parametric knowledge related to the query through external knowledge bases before reasoning. The retrieved information is incorporated into LMs as context alongside…

信息检索 · 计算机科学 2024-11-21 Mingzhu Wang , Yuzhe Zhang , Qihang Zhao , Junyi Yang , Hong Zhang

Large Language Models (LLMs) have enabled a wide range of applications through their powerful capabilities in language understanding and generation. However, as LLMs are trained on static corpora, they face difficulties in addressing…

计算与语言 · 计算机科学 2025-10-13 Yongjie Wang , Yue Yu , Kaisong Song , Jun Lin , Zhiqi Shen

Although Large Language Models (LLMs) have demonstrated extraordinary capabilities in many domains, they still have a tendency to hallucinate and generate fictitious responses to user requests. This problem can be alleviated by augmenting…

信息检索 · 计算机科学 2023-06-09 Jiongnan Liu , Jiajie Jin , Zihan Wang , Jiehan Cheng , Zhicheng Dou , Ji-Rong Wen