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When a fluid flows over a solid surface, it creates a thin boundary layer where the flow velocity is influenced by the surface through viscosity, and can transition from laminar to turbulent at sufficiently high speeds. Understanding and…

流体动力学 · 物理学 2024-10-24 Matthew Bonas , David H. Richter , Stefano Castruccio

Climate change is increasing the occurrence of extreme precipitation events, threatening infrastructure, agriculture, and public safety. Ensemble prediction systems provide probabilistic forecasts but exhibit biases and difficulties in…

机器学习 · 计算机科学 2025-04-09 Christopher Bülte , Sohir Maskey , Philipp Scholl , Jonas von Berg , Gitta Kutyniok

Given a single input rainy image, our goal is to visually remove rain streaks and the veiling effect caused by scattering and transmission of rain streaks and rain droplets. We are particularly concerned with heavy rain, where rain streaks…

计算机视觉与模式识别 · 计算机科学 2017-12-20 Ruoteng Li , Loong-Fah Cheong , Robby T. Tan

To alleviate the adverse effect of rain streaks in image processing tasks, CNN-based single image rain removal methods have been recently proposed. However, the performance of these deep learning methods largely relies on the covering range…

图像与视频处理 · 电气工程与系统科学 2020-05-20 Hong Wang , Yichen Wu , Qi Xie , Qian Zhao , Yong Liang , Deyu Meng

Rain streaks can severely degrade the visibility, which causes many current computer vision algorithms fail to work. So it is necessary to remove the rain from images. We propose a novel deep network architecture based on deep convolutional…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Xia Li , Jianlong Wu , Zhouchen Lin , Hong Liu , Hongbin Zha

Exploring and modeling rain generation mechanism is critical for augmenting paired data to ease training of rainy image processing models. Against this task, this study proposes a novel deep learning based rain generator, which fully takes…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Zhiqiang Pang , Hong Wang , Qi Xie , Deyu Meng , Zongben Xu

Empirical researchers often estimate spillover effects by fitting linear or non-linear regression models to sampled network data. We show that common sampling schemes bias these estimates, potentially upwards, and derive biased-corrected…

综合经济学 · 经济学 2025-09-23 Kieran Marray

We study how network structure affects the dynamics of collateral in presence of rehypothecation. We build a simple model wherein banks interact via chains of repo contracts and use their proprietary collateral or re-use the collateral…

风险管理 · 定量金融 2018-02-07 Duc Thi Luu , Mauro Napoletano , Paolo Barucca , Stefano Battiston

This paper explores a variety of strategies for understanding the formation, structure, efficiency and vulnerability of water distribution networks. Water supply systems are studied as spatially organized networks for which the practical…

物理与社会 · 物理学 2011-04-04 A. Yazdani , P. Jeffrey

Forecasting compound floods presents a significant challenge due to the intricate interplay of meteorological, hydrological, and oceanographic factors. Analyzing compound floods has become more critical as the global climate increases flood…

机器学习 · 计算机科学 2025-06-06 Xu Zheng , Chaohao Lin , Sipeng Chen , Zhuomin Chen , Jimeng Shi , Wei Cheng , Jayantha Obeysekera , Jason Liu , Dongsheng Luo

Flood quantile estimation is of great importance for many engineering studies and policy decisions. However, practitioners must often deal with small data available. Thus, the information must be used optimally. In the last decades, to…

应用统计 · 统计学 2009-11-13 Mathieu Ribatet , Taha B. M. J. Ouarda , Eric Sauquet , Jean-Michel Grésillon

This paper presents a methodology for freight traffic assignment in a large-scale road-rail intermodal network under uncertainty. Network uncertainties caused by natural disasters have dramatically increased in recent years. Several of…

最优化与控制 · 数学 2024-01-08 Majbah Uddin , Nathan Huynh , Fahim Ahmed

Intensifying climate change will lead to more extreme weather events, including heavy rainfall and drought. Accurate stream flow prediction models which are adaptable and robust to new circumstances in a changing climate will be an…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Aleksis Pirinen , Olof Mogren , Mårten Västerdal

Water Distribution Networks (WDNs), critical to public well-being and economic stability, face challenges such as pipe blockages and background leakages, exacerbated by operational constraints such as data non-stationarity and limited…

机器学习 · 计算机科学 2025-08-25 Jin Li , Kleanthis Malialis , Stelios G. Vrachimis , Marios M. Polycarpou

The nonequilibrium dynamical behavior and structure formation of end-functionalized semiflexible polymer suspensions under flow are investigated by mesoscale hydrodynamic simulations. The hybrid simulation approach combines the…

软凝聚态物质 · 物理学 2015-11-04 Jin Suk Myung , Roland G. Winkler , Gerhard Gompper

A reliable forecast of inflows to the reservoir is a key factor in the optimal operation of reservoirs. Real-time operation of the reservoir based on forecasts of inflows can lead to substantial economic gains. However, the forecast of…

机器学习 · 计算机科学 2021-09-10 Asha Devi Singh , Anurag Singh

Climate change has increased the frequency and severity of extreme weather events such as hurricanes and winter storms. The complex interplay of floods with tides, runoff, and sediment creates additional hazards -- including erosion and the…

On many social networking web sites such as Facebook and Twitter, resharing or reposting functionality allows users to share others' content with their own friends or followers. As content is reshared from user to user, large cascades of…

社会与信息网络 · 计算机科学 2014-03-20 Justin Cheng , Lada A. Adamic , P. Alex Dow , Jon Kleinberg , Jure Leskovec

Measuring the connectivity of water in rivers and streams is essential for effective water resource management. Increased extreme weather events associated with climate change can result in alterations to river and stream connectivity.…

计算机视觉与模式识别 · 计算机科学 2025-02-04 Timothy James Becker , Derin Gezgin , Jun Yi He Wu , Mary Becker

Deep Reservoir Computing has emerged as a new paradigm for deep learning, which is based around the reservoir computing principle of maintaining random pools of neurons combined with hierarchical deep learning. The reservoir paradigm…

神经与进化计算 · 计算机科学 2020-10-16 Matthew Evanusa , Cornelia Fermüller , Yiannis Aloimonos