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arXiv 2403.18570cs.LGcs.AI
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面向供水系统的物理信息图神经网络

Physics-Informed Graph Neural Networks for Water Distribution Systems

Center for Cognitive Interaction Technology, Bielefeld University(比勒费尔德大学认知交互技术中心)

Inaam Ashraf, Janine Strotherm, Luca Hermes, Barbara Hammer

AI总结:

本文提出一种物理信息图神经网络模型,通过递归消息传递和少量GCN层高效仿真EPANET水力模拟器,在五个真实供水系统数据集上实现高精度且显著更快的状态估计。

摘要:

供水系统(WDS)是关键基础设施的重要组成部分,对城市发展至关重要。到2050年,全球70%的人口可能居住在城市环境中,因此高效的WDS模拟与规划工具对于实现联合国可持续发展目标(SDG)6——“人人享有清洁饮水和卫生设施”具有关键作用。在这一领域,我们提出了一种新颖且高效的机器学习仿真器,更确切地说,是一种用于WDS水力状态估计的物理信息深度学习(DL)模型。该模型采用递归方法,仅需少量图卷积神经网络(GCN)层,并采用基于消息传递的创新算法。与传统的机器学习任务不同,该模型利用水力学原理,在以无监督方式重建可用真值特征的过程中推断出两个额外的水力状态特征。据我们所知,这是首个在不利用任何额外信息的情况下仿真流行水力模拟器EPANET的深度学习方法。与大多数深度学习模型类似,且不同于水力模拟器,我们的模型展现出显著更快的仿真时间,并且仿真时间不会随WDS规模的增大而急剧增加。此外,我们在五个真实世界WDS数据集上的实验表明,该模型在真值上取得了高精度,并且与水力模拟器相比获得了非常相似的结果。

英文摘要:

Water distribution systems (WDS) are an integral part of critical infrastructure which is pivotal to urban development. As 70% of the world's population will likely live in urban environments in 2050, efficient simulation and planning tools for WDS play a crucial role in reaching UN's sustainable developmental goal (SDG) 6 - "Clean water and sanitation for all". In this realm, we propose a novel and efficient machine learning emulator, more precisely, a physics-informed deep learning (DL) model, for hydraulic state estimation in WDS. Using a recursive approach, our model only needs a few graph convolutional neural network (GCN) layers and employs an innovative algorithm based on message passing. Unlike conventional machine learning tasks, the model uses hydraulic principles to infer two additional hydraulic state features in the process of reconstructing the available ground truth feature in an unsupervised manner. To the best of our knowledge, this is the first DL approach to emulate the popular hydraulic simulator EPANET, utilizing no additional information. Like most DL models and unlike the hydraulic simulator, our model demonstrates vastly faster emulation times that do not increase drastically with the size of the WDS. Moreover, we achieve high accuracy on the ground truth and very similar results compared to the hydraulic simulator as demonstrated through experiments on five real-world WDS datasets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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