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Modelling long-range contextual relationships is critical for pixel-wise prediction tasks such as semantic segmentation. However, convolutional neural networks (CNNs) are inherently limited to model such dependencies due to the naive…

计算机视觉与模式识别 · 计算机科学 2021-09-01 Xiangtai Li , Li Zhang , Guangliang Cheng , Kuiyuan Yang , Yunhai Tong , Xiatian Zhu , Tao Xiang

AC Optimal Power Flow (ACOPF) is computationally intensive for large-scale grids, often requiring prohibitive solution times with conventional solvers. Machine learning offers significant speedups, but existing models struggle with…

机器学习 · 计算机科学 2026-04-22 Olayiwola Arowolo , Jochen L. Cremer

Recently, there has been a growing concern about the overload status of the power grid networks, and the increasing possibility of cascading failures. Many researchers have studied these networks to provide design guidelines for more robust…

物理与社会 · 物理学 2012-12-27 Sakshi Pahwa , Caterina Scoglio , Noel Schulz

Internet of Things (IoT) domains generate large volumes of high velocity event streams from sensors, which need to be analyzed with low latency to drive decisions. Complex Event Processing (CEP) is a Big Data technique to enable such…

分布式、并行与集群计算 · 计算机科学 2019-05-10 Rajrup Ghosh , Yogesh Simmhan

The large size of multiscale, distribution and transmission, power grids hinder fast system-wide estimation and real-time control and optimization of operations. This paper studies graph reduction methods of power grids that are favorable…

系统与控制 · 计算机科学 2018-10-05 Colin Grudzien , Deepjyoti Deka , Michael Chertkov , Scott N Backhaus

Heterogeneous temporal graphs (HTGs) are ubiquitous data structures in the real world. Recently, to enhance representation learning on HTGs, numerous attention-based neural networks have been proposed. Despite these successes, existing…

机器学习 · 计算机科学 2025-10-22 Yili Wang , Tairan Huang , Changlong He , Qiutong Li , Jianliang Gao

Heterogeneous graph neural networks (HGNNs) have demonstrated strong capability in modeling complex semantics across multi-type nodes and relations. However, their scalability to large-scale graphs remains challenging due to structural…

机器学习 · 计算机科学 2025-12-12 Fuyan Ou , Siqi Ai , Yulin Hu

Traffic flow prediction plays a critical role in the intelligent transportation system, and it is also a challenging task because of the underlying complex Spatio-temporal patterns and heterogeneities evolving across time. However, most…

人工智能 · 计算机科学 2024-12-24 Jiyao Wang , Zehua Peng , Yijia Zhang , Dengbo He , Lei Chen

Power distribution networks are increasingly hosting controllable and flexible distributed energy resources (DERs) that, when aggregated, can provide ancillary support to transmission systems. However, existing aggregation schemes often…

系统与控制 · 电气工程与系统科学 2026-01-22 Hyeongon Park , Daniel K. Molzahn , Rahul K. Gupta

Skeleton-based action recognition methods are limited by the semantic extraction of spatio-temporal skeletal maps. However, current methods have difficulty in effectively combining features from both temporal and spatial graph dimensions…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Shengqin Wang , Yongji Zhang , Minghao Zhao , Hong Qi , Kai Wang , Fenglin Wei , Yu Jiang

Telecommunication networks play a critical role in modern society. With the arrival of 5G networks, these systems are becoming even more diversified, integrated, and intelligent. Traffic forecasting is one of the key components in such a…

机器学习 · 计算机科学 2020-09-22 Marcus Kalander , Min Zhou , Chengzhi Zhang , Hanling Yi , Lujia Pan

Spatio-temporal prediction is a pivotal task with broad applications in traffic management, climate monitoring, energy scheduling, etc. However, existing methodologies often struggle to balance model expressiveness and computational…

机器学习 · 计算机科学 2025-05-27 Jiawen Chen , Qi Shao , Duxin Chen , Wenwu Yu

We explore a key architectural aspect of deep convolutional neural networks: the pattern of internal skip connections used to aggregate outputs of earlier layers for consumption by deeper layers. Such aggregation is critical to facilitate…

计算机视觉与模式识别 · 计算机科学 2019-02-08 Ligeng Zhu , Ruizhi Deng , Michael Maire , Zhiwei Deng , Greg Mori , Ping Tan

Despite the stride made by machine learning (ML) based performance modeling, two major concerns that may impede production-ready ML applications in EDA are stringent accuracy requirements and generalization capability. To this end, we…

机器学习 · 计算机科学 2022-10-21 Nan Wu , Jiwon Lee , Yuan Xie , Cong Hao

In recent years, many spatial-temporal graph convolutional network (STGCN) models are proposed to deal with the spatial-temporal network data forecasting problem. These STGCN models have their own advantages, i.e., each of them puts forward…

机器学习 · 计算机科学 2020-10-16 Chunnan Wang , Kaixin Zhang , Hongzhi Wang , Bozhou Chen

Deterministic routing has emerged as a promising technology for future non-terrestrial networks (NTNs), offering the potential to enhance service performance and optimize resource utilization. However, the dynamic nature of network topology…

网络与互联网体系结构 · 计算机科学 2024-01-24 Keyi Shi , Jingchao Wang , Hongyan Li , Kan Wang

Cellular traffic prediction is an indispensable part for intelligent telecommunication networks. Nevertheless, due to the frequent user mobility and complex network scheduling mechanisms, cellular traffic often inherits complicated…

网络与互联网体系结构 · 计算机科学 2023-03-02 Xing Wang , Kexin Yang , Zhendong Wang , Junlan Feng , Lin Zhu , Juan Zhao , Chao Deng

Efficient training of large-scale heterogeneous graphs is of paramount importance in real-world applications. However, existing approaches typically explore simplified models to mitigate resource and time overhead, neglecting the crucial…

机器学习 · 计算机科学 2024-12-24 Yuxuan Liang , Wentao Zhang , Xinyi Gao , Ling Yang , Chong Chen , Hongzhi Yin , Yunhai Tong , Bin Cui

This paper proposes a novel heterogeneous grid convolution that builds a graph-based image representation by exploiting heterogeneity in the image content, enabling adaptive, efficient, and controllable computations in a convolutional…

计算机视觉与模式识别 · 计算机科学 2021-04-23 Ryuhei Hamaguchi , Yasutaka Furukawa , Masaki Onishi , Ken Sakurada

Designing effective graph neural networks (GNNs) with message passing has two fundamental challenges, i.e., determining optimal message-passing pathways and designing local aggregators. Previous methods of designing optimal pathways are…

机器学习 · 计算机科学 2024-11-01 Junshu Sun , Shuhui Wang , Chenxue Yang , Qingming Huang