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Large Language Models (LLMs), despite their remarkable capabilities, are prone to generating hallucinated or outdated content due to their static internal knowledge. While Retrieval-Augmented Generation (RAG) integrated with Reinforcement…

Computation and Language · Computer Science 2026-01-14 Zhiwen Tan , Jiaming Huang , Qintong Wu , Hongxuan Zhang , Chenyi Zhuang , Jinjie Gu

Selective retrieval aims to make retrieval-augmented generation (RAG) more efficient and reliable by skipping retrieval when an LLM's parametric knowledge suffices. Despite promising results, existing methods are constrained by a binary…

Computation and Language · Computer Science 2026-01-07 Di Wu , Jia-Chen Gu , Kai-Wei Chang , Nanyun Peng

Long-Context Question Answering (LCQA), a challenging task, aims to reason over long-context documents to yield accurate answers to questions. Existing long-context Large Language Models (LLMs) for LCQA often struggle with the "lost in the…

Computation and Language · Computer Science 2024-11-04 Qingfei Zhao , Ruobing Wang , Yukuo Cen , Daren Zha , Shicheng Tan , Yuxiao Dong , Jie Tang

Retrieval-augmented generation (RAG) has gained traction as a powerful approach for enhancing language models by integrating external knowledge sources. However, RAG introduces challenges such as retrieval latency, potential errors in…

Computation and Language · Computer Science 2025-02-25 Brian J Chan , Chao-Ting Chen , Jui-Hung Cheng , Hen-Hsen Huang

Retrieval-Augmented Generation (RAG) has emerged as a powerful approach to mitigate large language model (LLM) hallucinations by incorporating external knowledge retrieval. However, existing RAG frameworks often apply retrieval…

Information Retrieval · Computer Science 2025-07-29 Jinyan Su , Jennifer Healey , Preslav Nakov , Claire Cardie

This study develops a question-answering system based on Retrieval-Augmented Generation (RAG) using Chinese Wikipedia and Lawbank as retrieval sources. Using TTQA and TMMLU+ as evaluation datasets, the system employs BGE-M3 for dense vector…

Information Retrieval · Computer Science 2025-01-17 Te-Lun Yang , Jyi-Shane Liu , Yuen-Hsien Tseng , Jyh-Shing Roger Jang

Retrieval-augmented Generation (RAG) has markedly enhanced the capabilities of Large Language Models (LLMs) in tackling knowledge-intensive tasks. The increasing demands of application scenarios have driven the evolution of RAG, leading to…

Computation and Language · Computer Science 2024-08-01 Yunfan Gao , Yun Xiong , Meng Wang , Haofen Wang

Retrieval-Augmented Generation (RAG) couples a retriever with a large language model (LLM) to ground generated responses in external evidence. While this framework enhances factuality and domain adaptability, it faces a key bottleneck:…

Information Retrieval · Computer Science 2026-01-08 Sherine George

Large language models (LLMs) inherently display hallucinations since the precision of generated texts cannot be guaranteed purely by the parametric knowledge they include. Although retrieval-augmented generation (RAG) systems enhance the…

Artificial Intelligence · Computer Science 2025-02-18 Bingyu Wan , Fuxi Zhang , Zhongpeng Qi , Jiayi Ding , Jijun Li , Baoshi Fan , Yijia Zhang , Jun Zhang

The recently developed retrieval-augmented generation (RAG) technology has enabled the efficient construction of domain-specific applications. However, it also has limitations, including the gap between vector similarity and the relevance…

Retrieval-augmented generation (RAG) has proven effective in integrating knowledge into large language models (LLMs). However, conventional RAGs struggle to capture complex relationships between pieces of knowledge, limiting their…

Information Retrieval · Computer Science 2025-12-12 Linhao Luo , Zicheng Zhao , Gholamreza Haffari , Dinh Phung , Chen Gong , Shirui Pan

The emergence of large Vision Language Models (VLMs) has broadened the scope and capabilities of single-modal Large Language Models (LLMs) by integrating visual modalities, thereby unlocking transformative cross-modal applications in a…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Shuo Xing , Peiran Li , Yuping Wang , Ruizheng Bai , Yueqi Wang , Chan-Wei Hu , Chengxuan Qian , Huaxiu Yao , Zhengzhong Tu

Parametric Retrieval-Augmented Generation (PRAG) is a RAG approach that integrates external knowledge directly into model parameters using a LoRA adapter, aiming at reducing the inference cost compared to traditional RAG. However, current…

Information Retrieval · Computer Science 2026-01-27 Zhan Su , Fengran Mo , Jinghan Zhang , Yuchen Hui , Jiaao Sun , Jian-yun Nie

Retrieval-Augmented Generation (RAG) mitigates factual errors and hallucinations in Large Language Models (LLMs) for question-answering (QA) by incorporating external knowledge. However, existing adaptive RAG methods rely on LLMs to predict…

Computation and Language · Computer Science 2025-04-08 Ruobing Wang , Qingfei Zhao , Yukun Yan , Daren Zha , Yuxuan Chen , Shi Yu , Zhenghao Liu , Yixuan Wang , Shuo Wang , Xu Han , Zhiyuan Liu , Maosong Sun

Overcoming the limited context limitations in early-generation LLMs, retrieval-augmented generation (RAG) has been a reliable solution for context-based answer generation in the past. Recently, the emergence of long-context LLMs allows the…

Computation and Language · Computer Science 2024-09-04 Tan Yu , Anbang Xu , Rama Akkiraju

Large language models often encounter challenges with static knowledge and hallucinations, which undermine their reliability. Retrieval-augmented generation (RAG) mitigates these issues by incorporating external information. However, user…

Information Retrieval · Computer Science 2024-11-21 Zhicong Li , Jiahao Wang , Zhishu Jiang , Hangyu Mao , Zhongxia Chen , Jiazhen Du , Yuanxing Zhang , Fuzheng Zhang , Di Zhang , Yong Liu

Visual Question Answering systems face reliability issues due to hallucinations, where models generate answers misaligned with visual input or factual knowledge. While Retrieval Augmented Generation frameworks mitigate this issue by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Ruoshuang Du , Xin Sun , Qiang Liu , Bowen Song , Zhongqi Chen , Weiqiang Wang , Liang Wang

Large Vision-Language Models (LVLMs) have made remarkable strides in multimodal tasks such as visual question answering, visual grounding, and complex reasoning. However, they remain limited by static training data, susceptibility to…

Artificial Intelligence · Computer Science 2025-08-27 Chan-Wei Hu , Yueqi Wang , Shuo Xing , Chia-Ju Chen , Suofei Feng , Ryan Rossi , Zhengzhong Tu

While the flexible capabilities of large language models (LLMs) allow them to answer a range of queries based on existing learned knowledge, information retrieval to augment generation is an important tool to allow LLMs to answer questions…

Information Retrieval · Computer Science 2023-11-23 Guy Zyskind , Tobin South , Alex Pentland

Current general-purpose large language models (LLMs) commonly exhibit knowledge hallucination and insufficient domain-specific adaptability in domain-specific tasks, limiting their effectiveness in specialized question answering scenarios.…

Information Retrieval · Computer Science 2025-09-16 Mengzheng Yang , Yanfei Ren , David Osei Opoku , Ruochang Li , Peng Ren , Chunxiao Xing