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Graph-based Retrieval-Augmented Generation (Graph-RAG) enhances large language models (LLMs) by structuring retrieval over an external corpus. However, existing approaches typically assume a static corpus, requiring expensive full-graph…

Information Retrieval · Computer Science 2025-07-08 Fangyuan Zhang , Zhengjun Huang , Yingli Zhou , Qintian Guo , Zhixun Li , Wensheng Luo , Di Jiang , Yixiang Fang , Xiaofang Zhou

Retrieval-Augmented Generation (RAG) enhances the factual grounding of Large Language Models by conditioning their outputs on external documents. However, standard embedding-based retrievers treat naturally structured corpora, such as…

Information Retrieval · Computer Science 2026-05-11 Giorgia Bolognesi , Claudio Estatico , Ulderico Fugacci , Isabella Mastroianni , Claudio Muselli , Luca Oneto

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

Retrieval-augmented generation (RAG) has shown impressive capability in providing reliable answer predictions and addressing hallucination problems. A typical RAG implementation uses powerful retrieval models to extract external information…

Information Retrieval · Computer Science 2024-11-19 Ziwei Liu , Liang Zhang , Qian Li , Jianghua Wu , Guangxu Zhu

Retrieval-Augmented Generation (RAG) has emerged as a powerful technique for enhancing the quality of responses in Question-Answering (QA) tasks. However, existing approaches often struggle with retrieving contextually relevant information,…

Computation and Language · Computer Science 2026-01-27 Tianyi Yang , Nashrah Haque , Vaishnave Jonnalagadda , Yuya Jeremy Ong , Zhehui Chen , Yanzhao Wu , Lei Yu , Divyesh Jadav , Wenqi Wei

Retrieval-augmented generation (RAG) has emerged as a promising technology for addressing hallucination issues in the responses generated by large language models (LLMs). Existing studies on RAG primarily focus on applying semantic-based…

Computation and Language · Computer Science 2025-02-12 Xiangrong Zhu , Yuexiang Xie , Yi Liu , Yaliang Li , Wei Hu

Retrieval-Augmented Generation (RAG) has emerged as a powerful paradigm for enhancing the capabilities of large language models. However, existing RAG evaluation predominantly focuses on text retrieval and relies on opaque, end-to-end…

Information Retrieval · Computer Science 2025-05-19 Chuan Xu , Qiaosheng Chen , Yutong Feng , Gong Cheng

Retrieval-Augmented Generation (RAG) has gained significant attention in recent years for its potential to enhance natural language understanding and generation by combining large-scale retrieval systems with generative models. RAG…

Computation and Language · Computer Science 2025-03-18 Mingyue Cheng , Yucong Luo , Jie Ouyang , Qi Liu , Huijie Liu , Li Li , Shuo Yu , Bohou Zhang , Jiawei Cao , Jie Ma , Daoyu Wang , Enhong Chen

Graph-based retrieval-augmented generation (RAG) methods, typically built on knowledge graphs (KGs) with binary relational facts, have shown promise in multi-hop open-domain QA. However, their rigid retrieval schemes and dense similarity…

Computation and Language · Computer Science 2026-02-17 Wen-Sheng Lien , Yu-Kai Chan , Hao-Lung Hsiao , Bo-Kai Ruan , Meng-Fen Chiang , Chien-An Chen , Yi-Ren Yeh , Hong-Han Shuai

Cyber threat intelligence (CTI) analysts must answer complex questions over large collections of narrative security reports. Retrieval-augmented generation (RAG) systems help language models access external knowledge, but traditional vector…

Artificial Intelligence · Computer Science 2026-04-14 Dzenan Hamzic , Florian Skopik , Max Landauer , Markus Wurzenberger , Andreas Rauber

Retrieval-Augmented Generation (RAG) is a prevalent approach to infuse a private knowledge base of documents with Large Language Models (LLM) to build Generative Q\&A (Question-Answering) systems. However, RAG accuracy becomes increasingly…

Information Retrieval · Computer Science 2025-03-10 Kunal Sawarkar , Abhilasha Mangal , Shivam Raj Solanki

Retrieval-Augmented Generation (RAG) has proven effective for knowledge synthesis, yet it encounters significant challenges in practical scenarios where data is inherently discrete and fragmented. In most environments, information is…

Artificial Intelligence · Computer Science 2026-01-09 Zhen Chen , Weihao Xie , Peilin Chen , Shiqi Wang , Jianping Wang

Retrieval-Augmented Generation (RAG) has significantly mitigated the hallucinations of Large Language Models (LLMs) by grounding the generation with external knowledge. Recent extensions of RAG to graph-based retrieval offer a promising…

Machine Learning · Computer Science 2025-09-23 Jialin Chen , Houyu Zhang , Seongjun Yun , Alejandro Mottini , Rex Ying , Xiang Song , Vassilis N. Ioannidis , Zheng Li , Qingjun Cui

Retrieval-Augmented Generation (RAG) plays a crucial role in grounding Large Language Models by leveraging external knowledge, whereas the effectiveness is often compromised by the retrieval of contextually flawed or incomplete information.…

Artificial Intelligence · Computer Science 2025-11-13 Yaoze Zhang , Rong Wu , Pinlong Cai , Xiaoman Wang , Guohang Yan , Song Mao , Ding Wang , Botian Shi

Polymer literature contains a large and growing body of experimental knowledge, yet much of it is buried in unstructured text and inconsistent terminology, making systematic retrieval and reasoning difficult. Existing tools typically…

Computational Engineering, Finance, and Science · Computer Science 2026-02-19 Sonakshi Gupta , Akhlak Mahmood , Wei Xiong , Rampi Ramprasad

Retrieval-Augmented Generation (RAG) struggles on long, structured financial filings where relevant evidence is sparse and cross-referenced. This paper presents a systematic investigation of advanced metadata-driven Retrieval-Augmented…

Information Retrieval · Computer Science 2025-10-29 Michail Dadopoulos , Anestis Ladas , Stratos Moschidis , Ioannis Negkakis

Large language models (LLMs) inevitably exhibit hallucinations since the accuracy of generated texts cannot be secured solely by the parametric knowledge they encapsulate. Although retrieval-augmented generation (RAG) is a practicable…

Computation and Language · Computer Science 2024-10-08 Shi-Qi Yan , Jia-Chen Gu , Yun Zhu , Zhen-Hua Ling

Retrieval Augmented Generation (RAG) is an essential agent for Large Language Model (LLM) aided Description Language (HDL) tasks, addressing the challenges of limited training data and prohibitively long prompts. However, its performance in…

Hardware Architecture · Computer Science 2026-03-10 Pingqing Zheng , Jiayin Qin , Fuqi Zhang , Niraj Chitla , Zishen Wan , Shang Wu , Yu Cao , Caiwen Ding , Yang , Zhao

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…

Computation and Language · Computer Science 2025-10-13 Yongjie Wang , Yue Yu , Kaisong Song , Jun Lin , Zhiqi Shen

Retrieval-Augmented Generation (RAG) is an effective approach to enhance the factual accuracy of large language models (LLMs) by retrieving information from external databases, which are typically composed of diverse sources, to supplement…

Machine Learning · Computer Science 2025-10-15 Jeongyeon Hwang , Junyoung Park , Hyejin Park , Dongwoo Kim , Sangdon Park , Jungseul Ok