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Dialogue benchmarks are crucial in training and evaluating chatbots engaging in domain-specific conversations. Knowledge graphs (KGs) represent semantically rich and well-organized data spanning various domains, such as DBLP, DBpedia, and…

Computation and Language · Computer Science 2025-01-20 Reham Omar , Omij Mangukiya , Essam Mansour

Large language models (LLMs) frequently generate confident yet factually incorrect content when used for language generation (a phenomenon often known as hallucination). Retrieval augmented generation (RAG) tries to reduce factual errors by…

Information Retrieval · Computer Science 2026-04-01 Dobrik Georgiev , Kheeran Naidu , Alberto Cattaneo , Federico Monti , Carlo Luschi , Daniel Justus

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

Large Language Model (LLM) has demonstrated significant success in a range of natural language processing (NLP) tasks within general domain. The emergence of LLM has introduced innovative methodologies across diverse fields, including the…

Information Retrieval · Computer Science 2025-07-30 Jiheng Liang , Zujie Xie , Ziru Yu , Xiangyang Yu

Knowledge retrieval with multi-modal queries plays a crucial role in supporting knowledge-intensive multi-modal applications. However, existing methods face challenges in terms of their effectiveness and training efficiency, especially when…

Information Retrieval · Computer Science 2024-01-17 Xinwei Long , Jiali Zeng , Fandong Meng , Zhiyuan Ma , Kaiyan Zhang , Bowen Zhou , Jie Zhou

Large Language Models (LLMs) are proficient at generating coherent and contextually relevant text but face challenges when addressing knowledge-intensive queries in domain-specific and factual question-answering tasks. Retrieval-augmented…

Information Retrieval · Computer Science 2024-10-08 Garima Agrawal , Tharindu Kumarage , Zeyad Alghamdi , Huan Liu

Generating Natural Language Explanations (NLEs) for model predictions on medical images, particularly those depicting thoracic pathologies, remains a critical and challenging task. Existing methodologies often struggle due to general…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Ameer Hamza , Abdullah , Yong Hyun Ahn , Sungyoung Lee , Seong Tae Kim

Large Language Models (LLMs) have shown remarkable capabilities across diverse tasks, yet they face inherent limitations such as constrained parametric knowledge and high retraining costs. Retrieval-Augmented Generation (RAG) augments the…

Information Retrieval · Computer Science 2025-08-26 Leqian Li , Dianxi Shi , Jialu Zhou , Xinyu Wei , Mingyue Yang , Songchang Jin , Shaowu Yang

Despite the advancements made in Vision Large Language Models (VLLMs), like text Large Language Models (LLMs), they have limitations in addressing questions that require real-time information or are knowledge-intensive. Indiscriminately…

Computation and Language · Computer Science 2025-08-26 Zhuo Chen , Xinyu Wang , Yong Jiang , Zhen Zhang , Xinyu Geng , Pengjun Xie , Fei Huang , Kewei Tu

Large Language Models (LLMs) demonstrate human-level capabilities in dialogue, reasoning, and knowledge retention. However, even the most advanced LLMs face challenges such as hallucinations and real-time updating of their knowledge.…

Computation and Language · Computer Science 2024-09-10 Xuanwang Zhang , Yunze Song , Yidong Wang , Shuyun Tang , Xinfeng Li , Zhengran Zeng , Zhen Wu , Wei Ye , Wenyuan Xu , Yue Zhang , Xinyu Dai , Shikun Zhang , Qingsong Wen

Large language models have shown remarkable language processing and reasoning ability but are prone to hallucinate when asked about private data. Retrieval-augmented generation (RAG) retrieves relevant data that fit into an LLM's context…

Machine Learning · Computer Science 2025-11-13 Alfred Clemedtson , Borun Shi

Large language models (LLMs) have demonstrated strong capabilities in medical question answering; however, purely parametric models often suffer from knowledge gaps and limited factual grounding. Retrieval-augmented generation (RAG)…

Computation and Language · Computer Science 2026-04-09 Nusrat Sultana , Abdullah Muhammad Moosa , Kazi Afzalur Rahman , Sajal Chandra Banik

Harnessing the robust capabilities of Large Language Models (LLMs) for narrative generation, logical reasoning, and common-sense knowledge integration, this study delves into utilizing LLMs to enhance automated radiology report generation…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Yingshu Li , Zhanyu Wang , Yunyi Liu , Lei Wang , Lingqiao Liu , Luping Zhou

Retrieval-augmented generation (RAG) has emerged as a promising approach to enhance the performance of large language models (LLMs) in knowledge-intensive tasks such as those from medical domain. However, the sensitive nature of the medical…

Computation and Language · Computer Science 2024-11-15 Nghia Trung Ngo , Chien Van Nguyen , Franck Dernoncourt , Thien Huu Nguyen

Large Language Models (LLMs) demonstrate strong reasoning abilities but face limitations such as hallucinations and outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) addresses these issues by grounding LLM…

Computation and Language · Computer Science 2025-03-04 Mufei Li , Siqi Miao , Pan Li

Traditional similarity-based schema matching methods are incapable of resolving semantic ambiguities and conflicts in domain-specific complex mapping scenarios due to missing commonsense and domain-specific knowledge. The hallucination…

Databases · Computer Science 2025-01-16 Chuangtao Ma , Sriom Chakrabarti , Arijit Khan , Bálint Molnár

Large Language Models (LLMs) often struggle with producing factually consistent answers due to limitations in their parametric memory. Retrieval-Augmented Generation (RAG) paradigms mitigate this issue by incorporating external knowledge at…

Computation and Language · Computer Science 2026-05-05 Shanglin Wu , Lihui Liu , Jinho D. Choi , Kai Shu

Large language models (LLMs) have shown promise in medical question answering but often struggle with hallucinations and shallow reasoning, particularly in tasks requiring nuanced clinical understanding. Retrieval-augmented generation (RAG)…

Computation and Language · Computer Science 2025-08-25 Ziyu Wang , Elahe Khatibi , Amir M. Rahmani

Despite the strong abilities, large language models (LLMs) still suffer from hallucinations and reliance on outdated knowledge, raising concerns in knowledge-intensive tasks. Graph-based retrieval-augmented generation (GRAG) enriches LLMs…

Computation and Language · Computer Science 2026-01-14 Derong Xu , Pengyue Jia , Xiaopeng Li , Yingyi Zhang , Maolin Wang , Qidong Liu , Xiangyu Zhao , Yichao Wang , Huifeng Guo , Ruiming Tang , Enhong Chen , Tong Xu

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…

Information Retrieval · Computer Science 2024-11-21 Mingzhu Wang , Yuzhe Zhang , Qihang Zhao , Junyi Yang , Hong Zhang