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Ensuring factual accuracy while maintaining the creative capabilities of Large Language Model Agents (LMAs) poses significant challenges in the development of intelligent agent systems. LMAs face prevalent issues such as information…

人工智能 · 计算机科学 2024-05-21 Diego Sanmartin

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…

信息检索 · 计算机科学 2025-05-29 Shijie Wang , Wenqi Fan , Yue Feng , Shanru Lin , Xinyu Ma , Shuaiqiang Wang , Dawei Yin

Large Language Models are now key assistants in human decision-making processes. However, a common note always seems to follow: "LLMs can make mistakes. Be careful with important info." This points to the reality that not all outputs from…

计算与语言 · 计算机科学 2025-05-16 Longchao Da , Parth Mitesh Shah , Kuan-Ru Liou , Jiaxing Zhang , Hua Wei

Large Language Models (LLMs) have demonstrated significant potential across various domains. However, they often struggle with integrating external knowledge and performing complex reasoning, leading to hallucinations and unreliable…

机器学习 · 计算机科学 2025-11-25 Yao Cheng , Yibo Zhao , Jiapeng Zhu , Yao Liu , Xing Sun , Xiang Li

In knowledge-intensive tasks, especially in high-stakes domains like medicine and law, it is critical not only to retrieve relevant information but also to provide causal reasoning and explainability. Large language models (LLMs) have…

人工智能 · 计算机科学 2025-03-18 Hang Luo , Jian Zhang , Chujun Li

Traditional methods of linking large language models (LLMs) to knowledge bases via the semantic similarity search often fall short of capturing complex relational dynamics. To address these limitations, we introduce AutoKG, a lightweight…

计算与语言 · 计算机科学 2023-11-28 Bohan Chen , Andrea L. Bertozzi

Knowledge Graph based Retrieval-Augmented Generation (KG-RAG) is a technique that enhances Large Language Model (LLM) inference in tasks like Question Answering (QA) by retrieving relevant information from knowledge graphs (KGs). However,…

人工智能 · 计算机科学 2025-09-01 Dongzhuoran Zhou , Yuqicheng Zhu , Xiaxia Wang , Yuan He , Jiaoyan Chen , Steffen Staab , Evgeny Kharlamov

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…

Retrieval-Augmented Generation (RAG) enhances language models by grounding responses in external information, yet explainability remains a critical challenge, particularly when retrieval relies on unstructured text. Knowledge graphs (KGs)…

机器学习 · 计算机科学 2025-07-14 Georgios Balanos , Evangelos Chasanis , Konstantinos Skianis , Evaggelia Pitoura

Retrieval-Augmented Generation (RAG) has emerged as an effective paradigm for expanding the knowledge capacity of Multimodal Large Language Models (MLLMs) by incorporating external knowledge sources into the generation process, and has been…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Xu Yuan , Liangbo Ning , Qingqing Ye , Wenqi Fan , Qing Li

Retrieval-Augmented Generation (RAG) is widely used to inject external non-parametric knowledge into large language models (LLMs). Recent works suggest that Knowledge Graphs (KGs) contain valuable external knowledge for LLMs. Retrieving…

计算与语言 · 计算机科学 2024-10-10 Wenyu Huang , Guancheng Zhou , Hongru Wang , Pavlos Vougiouklis , Mirella Lapata , Jeff Z. Pan

Knowledge graphs (KGs) are vital for knowledge-intensive tasks and have shown promise in reducing hallucinations in large language models (LLMs). However, constructing high-quality KGs remains difficult, requiring accurate information…

计算与语言 · 计算机科学 2025-10-14 Ruirui Chen , Weifeng Jiang , Chengwei Qin , Bo Xiong , Fiona Liausvia , Dongkyu Choi , Boon Kiat Quek

Retrieval-Augmented Generation (RAG) systems commonly use chunking strategies for retrieval, which enhance large language models (LLMs) by enabling them to access external knowledge, ensuring that the retrieved information is up-to-date and…

计算与语言 · 计算机科学 2025-07-15 Hai Toan Nguyen , Tien Dat Nguyen , Viet Ha Nguyen

Retrieval-Augmented Generation (RAG) systems have revolutionized information retrieval and question answering, but traditional text-based chunking methods struggle with complex document structures, multi-page tables, embedded figures, and…

机器学习 · 计算机科学 2025-07-15 Vishesh Tripathi , Tanmay Odapally , Indraneel Das , Uday Allu , Biddwan Ahmed

The integration of knowledge graphs (KGs) with large language models (LLMs) offers significant potential to improve the retrieval phase of retrieval-augmented generation (RAG) systems. In this study, we propose KG-CQR, a novel framework for…

计算与语言 · 计算机科学 2025-09-09 Chi Minh Bui , Ngoc Mai Thieu , Van Vinh Nguyen , Jason J. Jung , Khac-Hoai Nam Bui

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…

计算与语言 · 计算机科学 2026-05-05 Shanglin Wu , Lihui Liu , Jinho D. Choi , Kai Shu

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.…

人工智能 · 计算机科学 2025-11-13 Yaoze Zhang , Rong Wu , Pinlong Cai , Xiaoman Wang , Guohang Yan , Song Mao , Ding Wang , Botian Shi

Retrieval-Augmented Generation (RAG) systems for biomedical literature are typically evaluated using ranking metrics like Mean Reciprocal Rank (MRR), which measure how well the system identifies the single most relevant chunk. We argue that…

人工智能 · 计算机科学 2026-03-25 Pouria Mortezaagha , Arya Rahgozar

Retrieval-Augmented Generation (RAG) is often used with Large Language Models (LLMs) to infuse domain knowledge or user-specific information. In RAG, given a user query, a retriever extracts chunks of relevant text from a knowledge base.…

分布式、并行与集群计算 · 计算机科学 2025-02-25 Shubham Agarwal , Sai Sundaresan , Subrata Mitra , Debabrata Mahapatra , Archit Gupta , Rounak Sharma , Nirmal Joshua Kapu , Tong Yu , Shiv Saini

Retrieval-Augmented Generation enhances language models by retrieving external knowledge to support informed and grounded responses. However, traditional RAG methods rely on fragment-level retrieval, limiting their ability to address…

信息检索 · 计算机科学 2026-05-05 Wenbiao Tao , Xinyuan Li , Yunshi Lan , Weining Qian