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Diabetes is a worldwide health issue affecting millions of people. Machine learning methods have shown promising results in improving diabetes prediction, particularly through the analysis of diverse data types, namely gene expression data.…

Machine Learning · Computer Science 2024-04-24 Rita T. Sousa , Heiko Paulheim

Foundation models excel at language, where sentences become tokens, and vision, where images become pixels, because both reduce to discrete symbols on a shared, fixed grid. Knowledge Graphs share the discreteness, but not the geometry.…

Artificial Intelligence · Computer Science 2026-05-08 Kossi Amouzouvi , Robert Wardenga , Jens Lehmann , Sahar Vahdati

Walk-based models have shown their advantages in knowledge graph (KG) reasoning by achieving decent performance while providing interpretable decisions. However, the sparse reward signals offered by the KG during traversal are often…

Artificial Intelligence · Computer Science 2020-10-07 Deren Lei , Gangrong Jiang , Xiaotao Gu , Kexuan Sun , Yuning Mao , Xiang Ren

In recommender systems, knowledge graph (KG) can offer critical information that is lacking in the original user-item interaction graph (IG). Recent process has explored this direction and shows that contrastive learning is a promising way…

Information Retrieval · Computer Science 2023-09-26 Haibo Ye , Xinjie Li , Yuan Yao , Hanghang Tong

Industrial processes generate vast amounts of time series data, yet extracting meaningful relationships and insights remains challenging. This paper introduces a framework for automated knowledge graph learning from time series data,…

Machine Learning · Computer Science 2024-07-03 Lolitta Ammann , Jorge Martinez-Gil , Michael Mayr , Georgios C. Chasparis

Personal knowledge graphs (PKGs) offer individuals a way to store and consolidate their fragmented personal data in a central place, improving service personalization while maintaining full user control. Despite their potential, practical…

Human-Computer Interaction · Computer Science 2024-02-13 Nolwenn Bernard , Ivica Kostric , Weronika Łajewska , Krisztian Balog , Petra Galuščáková , Vinay Setty , Martin G. Skjæveland

Data-driven systems need to be evaluated to establish trust in the scientific approach and its applicability. In particular, this is true for Knowledge Graph (KG) Question Answering (QA), where complex data structures are made accessible…

Computation and Language · Computer Science 2022-01-21 Aleksandr Perevalov , Xi Yan , Liubov Kovriguina , Longquan Jiang , Andreas Both , Ricardo Usbeck

Knowledge graph question answering (KGQA) based on information retrieval aims to answer a question by retrieving answer from a large-scale knowledge graph. Most existing methods first roughly retrieve the knowledge subgraphs (KSG) that may…

Computation and Language · Computer Science 2022-10-06 Hanning Gao , Lingfei Wu , Po Hu , Zhihua Wei , Fangli Xu , Bo Long

Automatic construction of large knowledge graphs (KG) by mining web-scale text datasets has received considerable attention recently. Estimating accuracy of such automatically constructed KGs is a challenging problem due to their size and…

Artificial Intelligence · Computer Science 2016-12-02 Prakhar Ojha , Partha Talukdar

We present the Qualitative Explainable Graph (QXG): a unified symbolic and qualitative representation for scene understanding in urban mobility. QXG enables the interpretation of an automated vehicle's environment using sensor data and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Nassim Belmecheri , Arnaud Gotlieb , Nadjib Lazaar , Helge Spieker

Knowledge graphs (KGs) are commonly used as side information to enhance collaborative signals and improve recommendation quality. In the context of knowledge-aware recommendation (KGR), graph neural networks (GNNs) have emerged as promising…

Information Retrieval · Computer Science 2023-08-16 Yi Liu , Hongrui Xuan , Bohan Li , Meng Wang , Tong Chen , Hongzhi Yin

Knowledge graph (KG) technology is extensively utilized in many areas, and many companies offer applications based on KG. Nonetheless, most KG platforms necessitate expertise and tremendous time and effort from users to construct KG records…

Artificial Intelligence · Computer Science 2024-12-17 Hanrong Zhang , Xinyue Wang , Jiabao Pan , Hongwei Wang

Feature selection in Knowledge Graphs (KGs) are increasingly utilized in diverse domains, including biomedical research, Natural Language Processing (NLP), and personalized recommendation systems. This paper delves into the methodologies…

Machine Learning · Computer Science 2024-06-24 Sisi Shao , Pedro Henrique Ribeiro , Christina Ramirez , Jason H. Moore

Current action recognition systems require large amounts of training data for recognizing an action. Recent works have explored the paradigm of zero-shot and few-shot learning to learn classifiers for unseen categories or categories with…

Computer Vision and Pattern Recognition · Computer Science 2020-08-31 Pallabi Ghosh , Nirat Saini , Larry S. Davis , Abhinav Shrivastava

Graph Generating Dependencies (GGDs) informally express constraints between two (possibly different) graph patterns which enforce relationships on both graph's data (via property value constraints) and its structure (via topological…

Databases · Computer Science 2022-11-02 Larissa C. Shimomura , Nikolay Yakovets , George Fletcher

Cities can be seen as the epitome of complex systems. They arise from a set of interactions and components so diverse that is almost impossible to describe them exhaustively. Amid this diversity, we chose an object which orchestrates the…

Physics and Society · Physics 2015-12-07 Claire Lagesse

The primary goal of Visual Analytics (VA) is to enable user-guided knowledge generation. Theoretical VA works to explain how the different aspects of a VA tool bring forth new insights through user interactivity, which itself can be…

Human-Computer Interaction · Computer Science 2023-10-30 Leonardo Christino , Sima Rezaeipourfarsangi , Evangelos Milios , Fernando V. Paulovich

Historical maps contain rich geographic information about the past of a region. They are sometimes the only source of information before the availability of digital maps. Despite their valuable content, it is often challenging to access and…

Information Retrieval · Computer Science 2020-12-08 Kai Sun , Yingjie Hu , Jia Song , Yunqiang Zhu

Knowledge graphs automatically constructed from text are increasingly used in real-world applications. However, their inherent noise, fragmentation, and semantic inconsistencies significantly affect the performance of Graph Neural Networks…

Machine Learning · Computer Science 2026-05-08 Othmane Kabal , Mounira Harzallah , Fabrice Guillet , Hideaki Takeda , Ryutaro Ichise

The integration of Knowledge Graphs (KGs) into the Retrieval Augmented Generation (RAG) framework has attracted significant interest, with early studies showing promise in mitigating hallucinations and improving model accuracy. However, a…

Artificial Intelligence · Computer Science 2025-05-20 Xujie Yuan , Yongxu Liu , Shimin Di , Shiwen Wu , Libin Zheng , Rui Meng , Lei Chen , Xiaofang Zhou , Jian Yin
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