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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

Effective knowledge management is critical for preserving institutional expertise and improving the efficiency of workforce training in state transportation agencies. Traditional approaches, such as static documentation, classroom-based…

Computation and Language · Computer Science 2026-03-05 Divija Amaram , Lu Gao , Gowtham Reddy Gudla , Tejaswini Sanjay Katale

While language Models store a massive amount of world knowledge implicitly in their parameters, even very large models often fail to encode information about rare entities and events, while incurring huge computational costs. Recently,…

Computation and Language · Computer Science 2022-10-21 Wenhu Chen , Hexiang Hu , Xi Chen , Pat Verga , William W. Cohen

Retrieval Augmented Generation (RAG) has emerged as a promising solution to address hallucination issues in Large Language Models (LLMs). However, the integration of multiple retrieval sources, while potentially more informative, introduces…

Information Retrieval · Computer Science 2025-08-12 Wenlong Wu , Haofen Wang , Bohan Li , Peixuan Huang , Xinzhe Zhao , Lei Liang

We aim to develop a retrieval-augmented generation (RAG) framework that answers questions over a corpus of visually-rich documents presented in mixed modalities (e.g., charts, tables) and diverse formats (e.g., PDF, PPTX). In this paper, we…

Computation and Language · Computer Science 2025-04-15 Ryota Tanaka , Taichi Iki , Taku Hasegawa , Kyosuke Nishida , Kuniko Saito , Jun Suzuki

Retrieval-Augmented Generation (RAG) improves large language models by retrieving external knowledge, often truncated into smaller chunks due to the input context window, which leads to information loss, resulting in response hallucinations…

Computation and Language · Computer Science 2025-11-18 Jie Zhang , Bo Tang , Wanzi Shao , Wenqiang Wei , Jihao Zhao , Jianqing Zhu , Zhiyu li , Wen Xi , Zehao Lin , Feiyu Xiong , Yanchao Tan

Dynamic Retrieval-augmented Generation (RAG) has shown great success in mitigating hallucinations in large language models (LLMs) during generation. However, existing dynamic RAG methods face significant limitations in two key aspects: 1)…

Computation and Language · Computer Science 2025-05-20 Hanghui Guo , Jia Zhu , Shimin Di , Weijie Shi , Zhangze Chen , Jiajie Xu

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) utilizes external knowledge to augment Large Language Models' (LLMs) reliability. For flexibility, agentic RAG employs autonomous, multi-round retrieval and reasoning to resolve queries. Although recent…

Information Retrieval · Computer Science 2025-11-10 Chao Zhang , Yuhao Wang , Derong Xu , Haoxin Zhang , Yuanjie Lyu , Yuhao Chen , Shuochen Liu , Tong Xu , Xiangyu Zhao , Yan Gao , Yao Hu , Enhong Chen

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

Vision-Language-Action (VLA) models have emerged as a promising paradigm for end-to-end autonomous driving, yet their reliance on implicit parametric knowledge limits generalization in long-tail scenarios. While Retrieval-Augmented…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Rui Zhao , Haofeng Hu , Zhenhai Gao , Jiaqiao Liu , Gao Fei

Retrieval-Augmented Generation (RAG) systems are emerging as a key approach for grounding Large Language Models (LLMs) in external knowledge, addressing limitations in factual accuracy and contextual relevance. However, there is a lack of…

Software Engineering · Computer Science 2025-09-25 Md Toufique Hasan , Muhammad Waseem , Kai-Kristian Kemell , Ayman Asad Khan , Mika Saari , Pekka Abrahamsson

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

Triple-based Iterative Retrieval-Augmented Generation (iRAG) mitigates document-level noise for multi-hop question answering. However, existing methods still face limitations: (i) greedy single-path expansion, which propagates early errors…

Computation and Language · Computer Science 2026-01-13 Zili Wei , Xiaocui Yang , Yilin Wang , Zihan Wang , Weidong Bao , Shi Feng , Daling Wang , Yifei Zhang

Generation with source attribution is important for enhancing the verifiability of retrieval-augmented generation (RAG) systems. However, existing approaches in RAG primarily link generated content to document-level references, making it…

Information Retrieval · Computer Science 2024-12-20 Xueguang Ma , Shengyao Zhuang , Bevan Koopman , Guido Zuccon , Wenhu Chen , Jimmy Lin

Retrieval-Augmented Generation (RAG) systems fail when documents evolve through versioning-a ubiquitous characteristic of technical documentation. Existing approaches achieve only 58-64% accuracy on version-sensitive questions, retrieving…

Information Retrieval · Computer Science 2025-10-10 Daniel Huwiler , Kurt Stockinger , Jonathan Fürst

The scaling of large language models to encode all the world's knowledge in model parameters is unsustainable and has exacerbated resource barriers. Retrieval-Augmented Generation (RAG) presents a potential solution, yet its application to…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Varun Nagaraj Rao , Siddharth Choudhary , Aditya Deshpande , Ravi Kumar Satzoda , Srikar Appalaraju

Retrieval-Augmented Generation (RAG) pipelines must address challenges beyond simple single-document retrieval, such as interpreting visual elements (tables, charts, images), synthesizing information across documents, and providing accurate…

Artificial Intelligence · Computer Science 2026-04-22 António Loison , Quentin Macé , Antoine Edy , Victor Xing , Tom Balough , Gabriel Moreira , Bo Liu , Manuel Faysse , Céline Hudelot , Gautier Viaud

Graph Retrieval-Augmented Generation (GraphRAG) has proven highly effective in enhancing the performance of Large Language Models (LLMs) on tasks that require external knowledge. By leveraging Knowledge Graphs (KGs), GraphRAG improves…

Artificial Intelligence · Computer Science 2025-11-06 Ruiyi Yang , Hao Xue , Imran Razzak , Hakim Hacid , Flora D. Salim

Automated road sign recognition is a critical task for intelligent transportation systems, but traditional deep learning methods struggle with the sheer number of sign classes and the impracticality of creating exhaustive labeled datasets.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Minghao Zhu , Zhihao Zhang , Anmol Sidhu , Keith Redmill