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Large Language Models (LLMs) showcase impressive capabilities but encounter challenges like hallucination, outdated knowledge, and non-transparent, untraceable reasoning processes. Retrieval-Augmented Generation (RAG) has emerged as a…

Computation and Language · Computer Science 2024-03-28 Yunfan Gao , Yun Xiong , Xinyu Gao , Kangxiang Jia , Jinliu Pan , Yuxi Bi , Yi Dai , Jiawei Sun , Meng Wang , Haofen Wang

This study explores the use of Large Language Models (LLMs) for automatic evaluation of knowledge graph (KG) completion models. Historically, validating information in KGs has been a challenging task, requiring large-scale human annotation…

Artificial Intelligence · Computer Science 2024-04-25 Jack Boylan , Shashank Mangla , Dominic Thorn , Demian Gholipour Ghalandari , Parsa Ghaffari , Chris Hokamp

Recent advancements in large language models (LLMs) and multi-modal LLMs have been remarkable. However, these models still rely solely on their parametric knowledge, which limits their ability to generate up-to-date information and…

Artificial Intelligence · Computer Science 2025-04-22 Zihan Ling , Zhiyao Guo , Yixuan Huang , Yi An , Shuai Xiao , Jinsong Lan , Xiaoyong Zhu , Bo Zheng

Transformers have a quadratic scaling of computational complexity with input size, which limits the input context window size of large language models (LLMs) in both training and inference. Meanwhile, retrieval-augmented generation (RAG)…

Computation and Language · Computer Science 2024-10-18 Yimin Tang , Yurong Xu , Ning Yan , Masood Mortazavi

Large Language Models (LLMs) present massive inherent knowledge and superior semantic comprehension capability, which have revolutionized various tasks in natural language processing. Despite their success, a critical gap remains in…

Computation and Language · Computer Science 2025-02-11 Ben Liu , Jihai Zhang , Fangquan Lin , Cheng Yang , Min Peng

The preservation of intangible cultural heritage is a critical challenge as collective memory fades over time. While Large Language Models (LLMs) offer a promising avenue for generating engaging narratives, their propensity for factual…

Artificial Intelligence · Computer Science 2026-04-06 Naga Sowjanya Barla , Jacopo de Berardinis

Retrieval-Augmented Generation (RAG) is a framework for grounding Large Language Models (LLMs) in external, up-to-date information. However, recent advancements in context window size allow LLMs to process inputs of up to 128K tokens or…

Machine Learning · Computer Science 2026-02-26 Seongwoong Shim , Myunsoo Kim , Jae Hyeon Cho , Byung-Jun Lee

Recently, ChatGPT, a representative large language model (LLM), has gained considerable attention due to its powerful emergent abilities. Some researchers suggest that LLMs could potentially replace structured knowledge bases like knowledge…

Computation and Language · Computer Science 2024-01-31 Linyao Yang , Hongyang Chen , Zhao Li , Xiao Ding , Xindong Wu

Retrieval-Augmented Generation (RAG) systems enhance large language models (LLMs) by integrating external knowledge sources, enabling more accurate and contextually relevant responses tailored to user needs. However, existing RAG systems…

Information Retrieval · Computer Science 2025-04-29 Zirui Guo , Lianghao Xia , Yanhua Yu , Tu Ao , Chao Huang

Large decoder-only language models (LLMs) have achieved remarkable success in generation and reasoning tasks, where they generate text responses given instructions. However, many applications, e.g., retrieval augmented generation (RAG),…

Computation and Language · Computer Science 2025-06-06 Caojin Zhang , Qiang Zhang , Ke Li , Sai Vidyaranya Nuthalapati , Benyu Zhang , Jason Liu , Serena Li , Lizhu Zhang , Xiangjun Fan

Graph-based retrieval-augmented generation (RAG) enables large language models (LLMs) to ground responses with structured external knowledge from up-to-date knowledge graphs (KGs) and reduce hallucinations. However, LLMs often rely on a…

Computation and Language · Computer Science 2025-07-01 Deyu Zou , Yongqiang Chen , Mufei Li , Siqi Miao , Chenxi Liu , Bo Han , James Cheng , Pan Li

Although Large Language Models achieve strong success in many tasks, they still suffer from hallucinations and knowledge deficiencies in real-world applications. Many knowledge graph-based retrieval-augmented generation (KG-RAG) methods…

Artificial Intelligence · Computer Science 2025-05-28 Hairu Wang , Yuan Feng , Xike Xie , S Kevin Zhou

Retrieval-augmented generation (RAG) is a promising way to improve large language models (LLMs) for generating more factual, accurate, and up-to-date content. Existing methods either optimize prompts to guide LLMs in leveraging retrieved…

Computation and Language · Computer Science 2024-12-12 Yutao Zhu , Zhaoheng Huang , Zhicheng Dou , Ji-Rong Wen

The integration of external knowledge through Retrieval-Augmented Generation (RAG) has become foundational in enhancing large language models (LLMs) for knowledge-intensive tasks. However, existing RAG paradigms often overlook the cognitive…

Artificial Intelligence · Computer Science 2025-09-24 Yu Wang , Shiwan Zhao , Zhihu Wang , Ming Fan , Xicheng Zhang , Yubo Zhang , Zhengfan Wang , Heyuan Huang , Ting Liu

In customer service technical support, swiftly and accurately retrieving relevant past issues is critical for efficiently resolving customer inquiries. The conventional retrieval methods in retrieval-augmented generation (RAG) for large…

Information Retrieval · Computer Science 2024-05-07 Zhentao Xu , Mark Jerome Cruz , Matthew Guevara , Tie Wang , Manasi Deshpande , Xiaofeng Wang , Zheng Li

Knowledge Representation Learning (KRL) is crucial for enabling applications of symbolic knowledge from Knowledge Graphs (KGs) to downstream tasks by projecting knowledge facts into vector spaces. Despite their effectiveness in modeling KG…

Computation and Language · Computer Science 2025-04-09 Xin Wang , Zirui Chen , Haofen Wang , Leong Hou U , Zhao Li , Wenbin Guo

Pre-trained language representation models (PLMs) cannot well capture factual knowledge from text. In contrast, knowledge embedding (KE) methods can effectively represent the relational facts in knowledge graphs (KGs) with informative…

Computation and Language · Computer Science 2020-11-24 Xiaozhi Wang , Tianyu Gao , Zhaocheng Zhu , Zhengyan Zhang , Zhiyuan Liu , Juanzi Li , Jian Tang

Retrieval-Augmented Generation (RAG) merges retrieval methods with deep learning advancements to address the static limitations of large language models (LLMs) by enabling the dynamic integration of up-to-date external information. This…

Information Retrieval · Computer Science 2026-05-19 Yizheng Huang , Jimmy Huang

Extracting relevant and structured knowledge from large, complex technical documents within the Reliability and Maintainability (RAM) domain is labor-intensive and prone to errors. Our work addresses this challenge by presenting OntoKGen, a…

Artificial Intelligence · Computer Science 2024-12-11 Mohammad Sadeq Abolhasani , Rong Pan

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…

Computation and Language · Computer Science 2024-10-10 Wenyu Huang , Guancheng Zhou , Hongru Wang , Pavlos Vougiouklis , Mirella Lapata , Jeff Z. Pan