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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

This study aims to optimize the existing retrieval-augmented generation model (RAG) by introducing a graph structure to improve the performance of the model in dealing with complex knowledge reasoning tasks. The traditional RAG model has…

Information Retrieval · Computer Science 2024-11-07 Yuxin Dong , Shuo Wang , Hongye Zheng , Jiajing Chen , Zhenhong Zhang , Chihang Wang

In recent years, Knowledge Graph (KG) development has attracted significant researches considering the applications in web search, relation prediction, natural language processing, information retrieval, question answering to name a few.…

Information Retrieval · Computer Science 2022-05-19 Satvik Garg , Dwaipayan Roy

This paper describes an efficient rule generation algorithm, called rule generation from artificial neural networks (RGANN) to generate symbolic rules from ANNs. Classification rules are sought in many areas from automatic knowledge…

Neural and Evolutionary Computing · Computer Science 2010-09-28 S. M. Kamruzzaman

In this paper, we propose a novel graph neural network-based recommendation model called KGLN, which leverages Knowledge Graph (KG) information to enhance the accuracy and effectiveness of personalized recommendations. We first use a…

Information Retrieval · Computer Science 2024-02-06 Chaoyang Zhang , Yanan Li , Shen Chen , Siwei Fan , Wei Li

Knowledge graphs (KGs) have shown to be an important asset of large companies like Google and Microsoft. KGs play an important role in providing structured and semantically rich information, making them available to people and machines, and…

Databases · Computer Science 2020-05-05 Elwin Huaman , Elias Kärle , Dieter Fensel

Knowledge Graphs (KGs) have gained considerable attention recently from both academia and industry. In fact, incorporating graph technology and the copious of various graph datasets have led the research community to build sophisticated…

Artificial Intelligence · Computer Science 2020-06-03 Bilal Abu-Salih , Marwan Al-Tawil , Ibrahim Aljarah , Hossam Faris , Pornpit Wongthongtham

The risks posed by AI features are increasing as they are rapidly integrated into software applications. In response, regulations and standards for safe and secure AI have been proposed. In this paper, we present an agentic framework that…

Artificial Intelligence · Computer Science 2026-05-01 Wilder Baldwin , Sepideh Ghanavati

Knowledge graphs (KGs) store highly heterogeneous information about the world in the structure of a graph, and are useful for tasks such as question answering and reasoning. However, they often contain errors and are missing information.…

Artificial Intelligence · Computer Science 2020-03-24 Caleb Belth , Xinyi Zheng , Jilles Vreeken , Danai Koutra

Knowledge graphs (KGs) have attracted more and more attentions because of their fundamental roles in many tasks. Quality evaluation for KGs is thus crucial and indispensable. Existing methods in this field evaluate KGs by either proposing…

Artificial Intelligence · Computer Science 2023-04-13 Xiaodong Li , Chenxin Zou , Yi Cai , Yuelong Zhu

Retrieval-augmented generation (RAG) systems have been widely adopted in contemporary large language models (LLMs) due to their ability to improve generation quality while reducing the required input context length. In this work, we focus…

Computation and Language · Computer Science 2026-04-07 Tianyi Zhang , Andreas Marfurt

Knowledge graph (KG) reasoning is an important problem for knowledge graphs. In this paper, we propose a novel and principled framework called \textbf{RulE} (stands for {Rul}e {E}mbedding) to effectively leverage logical rules to enhance KG…

Artificial Intelligence · Computer Science 2024-05-21 Xiaojuan Tang , Song-Chun Zhu , Yitao Liang , Muhan Zhang

LLM post-training has primarily relied on large text corpora and human feedback, without capturing the structure of domain knowledge. This has caused models to struggle dealing with complex reasoning tasks, especially for high-stakes…

Computation and Language · Computer Science 2026-01-21 Dezhao Song , Guglielmo Bonifazi , Frank Schilder , Jonathan Richard Schwarz

Large language models (LLMs) offer new opportunities for constructing knowledge graphs (KGs) from unstructured clinical narratives. However, existing approaches often rely on structured inputs and lack robust validation of factual accuracy…

Artificial Intelligence · Computer Science 2026-01-06 Udiptaman Das , Krishnasai B. Atmakuri , Duy Ho , Chi Lee , Yugyung Lee

Knowledge Graph (KG) reasoning that predicts missing facts for incomplete KGs has been widely explored. However, reasoning over Temporal KG (TKG) that predicts facts in the future is still far from resolved. The key to predict future facts…

Artificial Intelligence · Computer Science 2021-04-22 Zixuan Li , Xiaolong Jin , Wei Li , Saiping Guan , Jiafeng Guo , Huawei Shen , Yuanzhuo Wang , Xueqi Cheng

Representation learning on a knowledge graph (KG) is to embed entities and relations of a KG into low-dimensional continuous vector spaces. Early KG embedding methods only pay attention to structured information encoded in triples, which…

Computation and Language · Computer Science 2020-01-01 Guanglin Niu , Yongfei Zhang , Bo Li , Peng Cui , Si Liu , Jingyang Li , Xiaowei Zhang

The reasoning process of Large Language Models (LLMs) is often plagued by hallucinations and missing facts in question-answering tasks. A promising solution is to ground LLMs' answers in verifiable knowledge sources, such as Knowledge…

Computation and Language · Computer Science 2026-02-26 Shiqi Yan , Yubo Chen , Ruiqi Zhou , Zhengxi Yao , Shuai Chen , Tianyi Zhang , Shijie Zhang , Wei Qiang Zhang , Yongfeng Huang , Haixin Duan , Yunqi Zhang

Despite the rapid progress of large language models (LLMs), knowledge graph-based question answering (KGQA) remains essential for producing verifiable and hallucination-resistant answers in many real-world settings where answer…

Computation and Language · Computer Science 2026-01-21 Ruijie Wang , Luca Rossetto , Michael Cochez , Abraham Bernstein

Knowledge graphs (KGs), with their structured representation capabilities, offer promising avenue for enhancing Retrieval Augmented Generation (RAG) systems, leading to the development of KG-RAG systems. Nevertheless, existing methods often…

Information Retrieval · Computer Science 2025-10-17 Yikuan Hu , Jifeng Zhu , Lanrui Tang , Chen Huang

Knowledge Graphs (KG) and associated Knowledge Graph Embedding (KGE) models have recently begun to be explored in the context of drug discovery and have the potential to assist in key challenges such as target identification. In the drug…

Biomolecules · Quantitative Biology 2022-06-01 Stephen Bonner , Ian P Barrett , Cheng Ye , Rowan Swiers , Ola Engkvist , Charles Tapley Hoyt , William L Hamilton
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