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This paper introduces a novel Graph Neural Network (GNN) architecture for time series classification, based on visibility graph representations. Traditional time series classification methods often struggle with high computational…

机器学习 · 计算机科学 2024-10-15 Paulo Coelho , Raul Araju , Luís Ramos , Samir Saliba , Renato Vimieiro

Interpolation of aliased seismic data constitutes a key step in a seismic processing workflow to obtain high quality velocity models and seismic images. Building on the idea of describing seismic wavefields as a superposition of local plane…

地球物理 · 物理学 2023-12-12 Francesco Brandolin , Matteo Ravasi , Tariq Alkhalifah

Data augmentation is a crucial step in the development of robust supervised learning models, especially when dealing with limited datasets. This study explores interpolation techniques for the augmentation of geo-referenced data, with the…

Cascade prediction aims at modeling information diffusion in the network. Most previous methods concentrate on mining either structural or sequential features from the network and the propagation path. Recent efforts devoted to combining…

机器学习 · 计算机科学 2021-12-08 Yansong Wang , Xiaomeng Wang , Tao Jia

Graph Neural Networks (GNNs) have shown success in learning from graph structured data containing node/edge feature information, with application to social networks, recommendation, fraud detection and knowledge graph reasoning. In this…

机器学习 · 计算机科学 2021-11-24 Xiang Song , Runjie Ma , Jiahang Li , Muhan Zhang , David Paul Wipf

Deep learning based methods have recently pushed the state-of-the-art on the problem of Single Image Super-Resolution (SISR). In this work, we revisit the more traditional interpolation-based methods, that were popular before, now with the…

计算机视觉与模式识别 · 计算机科学 2017-12-19 Xu Jia , Hong Chang , Tinne Tuytelaars

Reinforcement learning is well known for its ability to model sequential tasks and learn latent data patterns adaptively. Deep learning models have been widely explored and adopted in regression and classification tasks. However, deep…

机器学习 · 计算机科学 2025-06-17 Thanveer Shaik , Xiaohui Tao , Haoran Xie , Lin Li , Jianming Yong , Yuefeng Li

Anomaly detection is fundamental yet, challenging problem with practical applications in industry. The current approaches neglect the higher-order dependencies within the networks of interconnected sensors in the high-dimensional time…

机器学习 · 计算机科学 2024-08-22 Sakhinana Sagar Srinivas , Rajat Kumar Sarkar , Venkataramana Runkana

Graph Neural Networks (GNNs) have led to state-of-the-art performance on a variety of machine learning tasks such as recommendation, node classification and link prediction. Graph neural network models generate node embeddings by merging…

机器学习 · 计算机科学 2020-11-04 Yunpeng Weng , Xu Chen , Liang Chen , Wei Liu

Accurate marine wind forecasts are essential for safe navigation, ship routing, and energy operations, yet they remain challenging because observations over the ocean are sparse, heterogeneous, and temporally variable. We reformulate wind…

机器学习 · 计算机科学 2025-12-04 Matteo Peduto , Qidong Yang , Jonathan Giezendanner , Devis Tuia , Sherrie Wang

Graph neural networks (GNNs) encounter significant computational challenges when handling large-scale graphs, which severely restricts their efficacy across diverse applications. To address this limitation, graph condensation has emerged as…

机器学习 · 计算机科学 2023-12-12 Xinyi Gao , Tong Chen , Yilong Zang , Wentao Zhang , Quoc Viet Hung Nguyen , Kai Zheng , Hongzhi Yin

Automatic feature extraction domain has witnessed the application of many intelligent methodologies over past decade; however detection accuracy of these approaches were limited as object geometry and contextual knowledge were not given…

计算机视觉与模式识别 · 计算机科学 2013-03-28 P. V. Arun , S. K. Katiyar

Graph Neural Networks (GNNs) have demonstrated remarkable results in various real-world applications, including drug discovery, object detection, social media analysis, recommender systems, and text classification. In contrast to their vast…

Graph neural networks (GNNs) are powerful machine learning models designed to handle irregularly structured data. However, their generic design often proves inadequate for analyzing brain connectomes in Alzheimer's Disease (AD),…

机器学习 · 计算机科学 2024-12-10 Zhepeng Wang , Runxue Bao , Yawen Wu , Guodong Liu , Lei Yang , Liang Zhan , Feng Zheng , Weiwen Jiang , Yanfu Zhang

GNNs have been proven to perform highly effective in various node-level, edge-level, and graph-level prediction tasks in several domains. Existing approaches mainly focus on static graphs. However, many graphs change over time with their…

机器学习 · 计算机科学 2022-06-22 Bahareh Najafi , Saeedeh Parsaeefard , Alberto Leon-Garcia

The increasing penetration of renewable energy sources introduces significant variability and uncertainty in modern power systems, making accurate state prediction critical for reliable grid operation. Conventional forecasting methods often…

机器学习 · 计算机科学 2025-04-01 Dhruv Suri , Mohak Mangal

Many applications in different domains produce large amount of time series data. Making accurate forecasting is critical for many decision makers. Various time series forecasting methods exist which use linear and nonlinear models…

机器学习 · 计算机科学 2019-07-19 Ümit Çavuş Büyükşahin , Şeyda Ertekin

Neural networks often struggle with high-dimensional but small sample-size tabular datasets. One reason is that current weight initialisation methods assume independence between weights, which can be problematic when there are insufficient…

机器学习 · 计算机科学 2024-08-20 Andrei Margeloiu , Nikola Simidjievski , Pietro Lio , Mateja Jamnik

Data in tabular format is frequently occurring in real-world applications. Graph Neural Networks (GNNs) have recently been extended to effectively handle such data, allowing feature interactions to be captured through representation…

机器学习 · 计算机科学 2024-08-14 Amr Alkhatib , Sofiane Ennadir , Henrik Boström , Michalis Vazirgiannis

An algorithm based on Artificial Neural Networks is proposed in this paper to improve the accuracy of Inertial Navigation System (INS)/ Global Navigation Satellite System (GNSS) integrated navigation during the absence of GNSS signals. The…

信号处理 · 电气工程与系统科学 2020-10-07 Uche Onyekpe , Vasile Palade , Stratis Kanarachos