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Despite advancements in Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) systems, their effectiveness is often hindered by a lack of integration with entity relationships and community structures, limiting their ability…

Computation and Language · Computer Science 2024-08-19 Rong-Ching Chang , Jiawei Zhang

To inhibit the spread of rumorous information and its severe consequences, traditional fact checking aims at retrieving relevant evidence to verify the veracity of a given claim. Fact checking methods typically use knowledge graphs (KGs) as…

Artificial Intelligence · Computer Science 2024-07-30 Shuai Wang , Penghui Wei , Qingchao Kong , Wenji Mao

We introduce a novel large language model (LLM)-driven agent framework, which iteratively refines queries and filters contextual evidence by leveraging dynamically evolving knowledge. A defining feature of the system is its decoupling of…

Artificial Intelligence · Computer Science 2025-04-02 Seyoung Song

Knowledge graph completion (KGC) is a widely used method to tackle incompleteness in knowledge graphs (KGs) by making predictions for missing links. Description-based KGC leverages pre-trained language models to learn entity and relation…

Computation and Language · Computer Science 2024-03-05 Derong Xu , Ziheng Zhang , Zhenxi Lin , Xian Wu , Zhihong Zhu , Tong Xu , Xiangyu Zhao , Yefeng Zheng , Enhong Chen

Abductive reasoning is the process of making educated guesses to provide explanations for observations. Although many applications require the use of knowledge for explanations, the utilization of abductive reasoning in conjunction with…

Artificial Intelligence · Computer Science 2024-06-21 Jiaxin Bai , Yicheng Wang , Tianshi Zheng , Yue Guo , Xin Liu , Yangqiu Song

Large language models (LLMs) have demonstrated remarkable capabilities across various domains, although their susceptibility to hallucination poses significant challenges for their deployment in critical areas such as healthcare. To address…

Computation and Language · Computer Science 2024-05-13 Mengjia Niu , Hao Li , Jie Shi , Hamed Haddadi , Fan Mo

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

Large Language Models (LLMs) have achieved significant success in open-domain question answering. However, they continue to face challenges such as hallucinations and knowledge cutoffs. These issues can be mitigated through in-context…

Computation and Language · Computer Science 2025-02-19 Zukang Yang , Zixuan Zhu , Xuan Zhu

With the rapid development of large-scale language models, Retrieval-Augmented Generation (RAG) has been widely adopted. However, existing RAG paradigms are inevitably influenced by erroneous retrieval information, thereby reducing the…

Information Retrieval · Computer Science 2024-05-30 Ridong Wu , Shuhong Chen , Xiangbiao Su , Yuankai Zhu , Yifei Liao , Jianming Wu

Retrieval-Augmented Generation (RAG) has significantly mitigated the hallucinations of Large Language Models (LLMs) by grounding the generation with external knowledge. Recent extensions of RAG to graph-based retrieval offer a promising…

Machine Learning · Computer Science 2025-09-23 Jialin Chen , Houyu Zhang , Seongjun Yun , Alejandro Mottini , Rex Ying , Xiang Song , Vassilis N. Ioannidis , Zheng Li , Qingjun Cui

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by retrieving external data to mitigate hallucinations and outdated knowledge issues. Benefiting from the strong ability in facilitating diverse data sources and…

Cryptography and Security · Computer Science 2025-07-15 Tianzhe Zhao , Jiaoyan Chen , Yanchi Ru , Haiping Zhu , Nan Hu , Jun Liu , Qika Lin

Retrieval-Augmented Generation (RAG) is an effective approach to enhance the factual accuracy of large language models (LLMs) by retrieving information from external databases, which are typically composed of diverse sources, to supplement…

Machine Learning · Computer Science 2025-10-15 Jeongyeon Hwang , Junyoung Park , Hyejin Park , Dongwoo Kim , Sangdon Park , Jungseul Ok

Fact-checking research has extensively explored verification but less so the generation of natural-language explanations, crucial for user trust. While Large Language Models (LLMs) excel in text generation, their capability for producing…

Computation and Language · Computer Science 2024-02-13 Kyungha Kim , Sangyun Lee , Kung-Hsiang Huang , Hou Pong Chan , Manling Li , Heng Ji

Despite initial successes and a variety of architectures, retrieval-augmented generation systems still struggle to reliably retrieve and connect the multi-step evidence required for complicated reasoning tasks. Most of the standard RAG…

Artificial Intelligence · Computer Science 2026-05-26 Jovan Pavlović , Miklós Krész , László Hajdu

The rapid expansion of publicly-available medical data presents a challenge for clinicians and researchers alike, increasing the gap between the volume of scientific literature and its applications. The steady growth of studies and findings…

Artificial Intelligence · Computer Science 2025-08-06 Taine J. Elliott , Stephen P. Levitt , Ken Nixon , Martin Bekker

Retrieval-Augmented Generation (RAG) lifts the factuality of Large Language Models (LLMs) by injecting external knowledge, yet it falls short on problems that demand multi-step inference; conversely, purely reasoning-oriented approaches…

Large language models (LLMs) often struggle with knowledge-intensive tasks due to a lack of background knowledge and a tendency to hallucinate. To address these limitations, integrating knowledge graphs (KGs) with LLMs has been intensively…

Computation and Language · Computer Science 2025-06-13 Yilin Xiao , Chuang Zhou , Qinggang Zhang , Bo Li , Qing Li , Xiao Huang

Recent advances in Large Language Model Multi-Agent Systems enable scalable orchestration and retrieval of specialized, parallelized subagents, each equipped with hundreds or thousands of Model Context Protocol (MCP) servers and tools.…

Computation and Language · Computer Science 2025-11-25 Faheem Nizar , Elias Lumer , Anmol Gulati , Pradeep Honaganahalli Basavaraju , Vamse Kumar Subbiah

The rapid spread of misinformation, further amplified by recent advances in generative AI, poses significant threats to society, impacting public opinion, democratic stability, and national security. Understanding and proactively assessing…

Artificial Intelligence · Computer Science 2025-06-02 Sania Nayab , Marco Simoni , Giulio Rossolini

Fact-checking is necessary to address the increasing volume of misinformation. Traditional fact-checking relies on manual analysis to verify claims, but it is slow and resource-intensive. This study establishes baseline comparisons for…

Computation and Language · Computer Science 2025-02-14 Premtim Sahitaj , Iffat Maab , Junichi Yamagishi , Jawan Kolanowski , Sebastian Möller , Vera Schmitt