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Retrieval-Augmented Generation (RAG) enables Large Language Models (LLMs) to extend their existing knowledge by dynamically incorporating external information. However, practical deployment is fundamentally constrained by the LLM's finite…

Information Retrieval · Computer Science 2026-03-24 Jiarui Guo , Yuemeng Xu , Zongwei Lv , Yangyujia Wang , Xiaolin Wang , Kan Liu , Tao Lan , Lin Qu , Tong Yang

Retrieval-Augmented Generation (RAG) based on knowledge graphs (KGs) enhances large language models (LLMs) by providing structured and interpretable external knowledge. However, existing KG-based RAG methods struggle to retrieve accurate…

Artificial Intelligence · Computer Science 2025-10-21 Junchi Yu , Yujie Liu , Jindong Gu , Philip Torr , Dongzhan Zhou

Standard Retrieval-Augmented Generation (RAG) relies on chunk-based retrieval, whereas GraphRAG advances this approach by graph-based knowledge representation. However, existing graph-based RAG approaches are constrained by binary…

Artificial Intelligence · Computer Science 2025-10-22 Haoran Luo , Haihong E , Guanting Chen , Yandan Zheng , Xiaobao Wu , Yikai Guo , Qika Lin , Yu Feng , Zemin Kuang , Meina Song , Yifan Zhu , Luu Anh Tuan

Large language models (LLMs) have achieved remarkable performance in natural language understanding and generation tasks. However, they often suffer from limitations such as difficulty in incorporating new knowledge, generating…

Artificial Intelligence · Computer Science 2024-03-05 Yilin Wen , Zifeng Wang , Jimeng Sun

Large language models (LLMs) have demonstrated remarkable capabilities in various complex tasks, yet they still suffer from hallucinations. By incorporating and exploring external knowledge, such as knowledge graphs(KGs), LLM's ability to…

Artificial Intelligence · Computer Science 2025-05-27 Qi Zhao , Hongyu Yang , Qi Song , Xinwei Yao , Xiangyang Li

Large Language Models (LLMs) and Code-LLMs (CLLMs) have significantly improved code generation, but, they frequently face difficulties when dealing with challenging and complex problems. Retrieval-Augmented Generation (RAG) addresses this…

Software Engineering · Computer Science 2025-06-17 Iman Saberi , Fatemeh Fard

The advent of Large Language Models (LLMs) has revolutionized natural language processing. However, these models face challenges in retrieving precise information from vast datasets. Retrieval-Augmented Generation (RAG) was developed to…

Information Retrieval · Computer Science 2025-03-04 Yuxin Yang , Haoyang Wu , Tao Wang , Jia Yang , Hao Ma , Guojie Luo

Legal retrieval is a widely studied area in Information Retrieval (IR) and a key task in this domain is retrieving relevant cases based on a given query case, often done by applying language models as encoders to model case similarity.…

Information Retrieval · Computer Science 2025-04-14 Gregor Donabauer , Udo Kruschwitz

Recommender systems have become increasingly vital in our daily lives, helping to alleviate the problem of information overload across various user-oriented online services. The emergence of Large Language Models (LLMs) has yielded…

Information Retrieval · Computer Science 2025-05-29 Shijie Wang , Wenqi Fan , Yue Feng , Shanru Lin , Xinyu Ma , Shuaiqiang Wang , Dawei Yin

As large language models (LLMs) continue to grow in size, their abilities to tackle complex tasks have significantly improved. However, issues such as hallucination and the lack of up-to-date knowledge largely remain unresolved. Knowledge…

Artificial Intelligence · Computer Science 2026-03-17 Lihui Liu

Retrieval-Augmented Generation (RAG) enhances the response quality and domain-specific performance of large language models (LLMs) by incorporating external knowledge to combat hallucinations. In recent research, graph structures have been…

Information Retrieval · Computer Science 2025-12-17 Hao Hu , Yifan Feng , Ruoxue Li , Rundong Xue , Xingliang Hou , Zhiqiang Tian , Yue Gao , Shaoyi Du

Current knowledge graph (KG) construction methods are confirmatory, focusing on recovering known relationships rather than identifying novel or context-dependent nodes. This paper proposes a phenotype-driven and evidence-governed framework…

Artificial Intelligence · Computer Science 2026-04-21 Adela Bâra , Simona-Vasilica Oprea

Retrieval-augmented generation (RAG) appears as a promising method to alleviate the "hallucination" problem in large language models (LLMs), since it can incorporate external traceable resources for response generation. The essence of RAG…

Computation and Language · Computer Science 2024-10-16 Haosheng Qian , Yixing Fan , Ruqing Zhang , Jiafeng Guo

Retrieval-Augmented Generation (RAG) helps large language models (LLMs) answer knowledge-intensive and time-sensitive questions by conditioning generation on external evidence. However, most RAG systems still retrieve unstructured chunks…

Computation and Language · Computer Science 2026-03-11 Jiashuo Sun , Yixuan Xie , Jimeng Shi , Shaowen Wang , Jiawei Han

Retrieval-Augmented Generation (RAG) systems enable large language models (LLMs) instant access to relevant information for the generative process, demonstrating their superior performance in addressing common LLM challenges such as…

Computation and Language · Computer Science 2025-10-17 Yilun Zheng , Dan Yang , Jie Li , Lin Shang , Lihui Chen , Jiahao Xu , Sitao Luan

Knowledge graphs provide structured and reliable information for many real-world applications, motivating increasing interest in combining large language models (LLMs) with graph-based retrieval to improve factual grounding. Recent…

Artificial Intelligence · Computer Science 2026-04-16 Yuchen Ying , Weiqi Jiang , Tongya Zheng , Yu Wang , Shunyu Liu , Kaixuan Chen , Mingli Song

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

Large Language Models (LLMs) excel at code generation but struggle with complex problems. Retrieval-Augmented Generation (RAG) mitigates this issue by integrating external knowledge, yet retrieval models often miss relevant context, and…

Software Engineering · Computer Science 2026-01-29 Shahd Seddik , Fahd Seddik , Iman Saberi , Fatemeh Fard , Minh Hieu Huynh , Patanamon Thongtanunam

Knowledge graph reasoning (KGR) is the task of inferring new knowledge by performing logical deductions on knowledge graphs. Recently, large language models (LLMs) have demonstrated remarkable performance in complex reasoning tasks. Despite…

Artificial Intelligence · Computer Science 2025-12-11 Yu Liu , Xixun Lin , Yanmin Shang , Yangxi Li , Shi Wang , Yanan Cao

Large language models (LLMs) have shown strong potential across a variety of tasks, but their application in the telecom field remains challenging due to domain complexity, evolving standards, and specialized terminology. Therefore,…

Artificial Intelligence · Computer Science 2026-02-20 Dun Yuan , Hao Zhou , Xue Liu , Hao Chen , Yan Xin , Jianzhong , Zhang