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Iterative retrieval-augmented generation (iRAG) models offer an effective approach for multi-hop question answering (QA). However, their retrieval process faces two key challenges: (1) it can be disrupted by irrelevant documents or…

Computation and Language · Computer Science 2025-02-26 Jinyuan Fang , Zaiqiao Meng , Craig Macdonald

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

University admissions offices face the significant challenge of managing high volumes of inquiries efficiently while maintaining response quality, which critically impacts prospective students' perceptions. This paper addresses the issues…

Computation and Language · Computer Science 2026-01-09 Aram Virabyan

Knowledge-based Vision Question Answering (KB-VQA) systems address complex visual-grounded questions with knowledge retrieved from external knowledge bases. The tasks of knowledge retrieval and answer generation tasks both necessitate…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Jiaqi Deng , Kaize Shi , Zonghan Wu , Huan Huo , Dingxian Wang , Guandong Xu

This paper focuses on the dynamic optimization of the Retrieval-Augmented Generation (RAG) architecture. It proposes a state-aware dynamic knowledge retrieval mechanism to enhance semantic understanding and knowledge scheduling efficiency…

Computation and Language · Computer Science 2025-04-29 Jacky He , Guiran Liu , Binrong Zhu , Hanlu Zhang , Hongye Zheng , Xiaokai Wang

Retrieval-augmented generation (RAG) methods are viable solutions for addressing the static memory limits of pre-trained language models. Nevertheless, encountering conflicting sources of information within the retrieval context is an…

Computation and Language · Computer Science 2025-06-05 Quang Hieu Pham , Hoang Ngo , Anh Tuan Luu , Dat Quoc Nguyen

Retrieval-Augmented Generation (RAG) has been proposed to mitigate hallucinations in large language models (LLMs), where generated outputs may be factually incorrect. However, existing RAG approaches predominantly rely on vector similarity…

Information Retrieval · Computer Science 2026-04-28 Miao Xie , Xiao Zhang , Yi Li , Chunli Lv

Large language models like ChatGPT are increasingly used in classrooms, but they often provide outdated or fabricated information that can mislead students. Retrieval Augmented Generation (RAG) improves reliability of LLMs by grounding…

Artificial Intelligence · Computer Science 2025-09-10 Amay Jain , Liu Cui , Si Chen

The introduction of new features and services in the banking sector often overwhelms customers, creating an opportunity for banks to enhance user experience through financial chatbots powered by large language models (LLMs). We initiated an…

Computation and Language · Computer Science 2025-01-27 Hamza Landolsi , Kais Letaief , Nizar Taghouti , Ines Abdeljaoued-Tej

Existing KBQA approaches, despite achieving strong performance on i.i.d. test data, often struggle in generalizing to questions involving unseen KB schema items. Prior ranking-based approaches have shown some success in generalization, but…

Computation and Language · Computer Science 2022-03-22 Xi Ye , Semih Yavuz , Kazuma Hashimoto , Yingbo Zhou , Caiming Xiong

Retrieval-augmented generation (RAG) systems have been widely adopted in contemporary large language models (LLMs) due to their ability to improve generation quality while reducing the required input context length. In this work, we focus…

Computation and Language · Computer Science 2026-04-07 Tianyi Zhang , Andreas Marfurt

Retrieval-Augmented Generation (RAG) represents a transformative approach within natural language processing (NLP), combining neural information retrieval with generative language modeling to enhance both contextual accuracy and factual…

Information Retrieval · Computer Science 2025-11-20 Mohammad Usman Altam , Md Imtiaz Habib , Tuan Hoang

Retrieval Augmented Generation (RAG) enables Large Language Models (LLMs) to generalize to new information by decoupling reasoning capabilities from static knowledge bases. Traditional RAG enhancements have explored vertical…

Software Engineering · Computer Science 2025-04-30 Michael Iannelli , Sneha Kuchipudi , Vera Dvorak

Retrieval-Augmented Generation (RAG), by integrating non-parametric knowledge from external knowledge bases into models, has emerged as a promising approach to enhancing response accuracy while mitigating factual errors and hallucinations.…

Information Retrieval · Computer Science 2025-09-12 Qitao Qin , Yucong Luo , Yihang Lu , Zhibo Chu , Xiaoman Liu , Xianwei Meng

Retrieval augmented generation (RAG) combines the generative abilities of large language models (LLMs) with external knowledge sources to provide more accurate and up-to-date responses. Recent RAG advancements focus on improving retrieval…

Retrieval-Augmented Generation (RAG) is an effective method to enhance the capabilities of large language models (LLMs). Existing methods typically optimize the retriever or the generator in a RAG system by directly using the top-k…

Computation and Language · Computer Science 2025-10-07 Shaohan Wang , Licheng Zhang , Zheren Fu , Zhendong Mao , Yongdong Zhang

Retrieval-augmented Generation (RAG) is a prevalent approach for domain-specific LLMs, yet it is often plagued by "Retrieval Hallucinations"--a phenomenon where fine-tuned models fail to recognize and act upon poor-quality retrieved…

Artificial Intelligence · Computer Science 2026-01-21 Letian Zhang , Guanghao Meng , Xudong Ren , Yiming Wang , Shu-Tao Xia

In this work, we benchmark various graph-based retrieval-augmented generation (RAG) systems across a broad spectrum of query types, including OLTP-style (fact-based) and OLAP-style (thematic) queries, to address the complex demands of…

Information Retrieval · Computer Science 2025-03-06 Joyce Cahoon , Prerna Singh , Nick Litombe , Jonathan Larson , Ha Trinh , Yiwen Zhu , Andreas Mueller , Fotis Psallidas , Carlo Curino

Developing accurate biomedical Question Answering (QA) systems in low-resource languages remains a major challenge, limiting equitable access to reliable medical knowledge. This paper introduces BanglaMedQA and BanglaMMedBench, the first…

Computation and Language · Computer Science 2025-11-07 Sadia Sultana , Saiyma Sittul Muna , Mosammat Zannatul Samarukh , Ajwad Abrar , Tareque Mohmud Chowdhury

Retrieval-Augmented Generation (RAG) over Knowledge Graphs (KGs) suffers from the fact that indexing approaches may lose important contextual nuance when text is reduced to triples, thereby degrading performance in downstream…

Computation and Language · Computer Science 2026-03-13 Riccardo Campi , Nicolò Oreste Pinciroli Vago , Mathyas Giudici , Marco Brambilla , Piero Fraternali