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Nonlinear model predictive control (NMPC) requires accurate and computationally efficient plant models. Our previous work has shown that the classical compartmentalization model reduction approach for distillation columns can be enhanced by…

In this work, we propose a subsystem decomposition approach and a distributed estimation scheme for a class of implicit two-time-scale nonlinear systems. Taking the advantage of the two-time-scale separation, these processes are decomposed…

系统与控制 · 电气工程与系统科学 2021-10-05 Sarupa Debnath , Soumya Ranjan Sahoo , Benjamin Decardi-Nelson , Jinfeng Liu

Model predictive control (MPC) is an industry standard control technique that iteratively solves an open-loop optimization problem to guide a system towards a desired state or trajectory. Consequently, an accurate forward model of system…

系统与控制 · 电气工程与系统科学 2024-11-11 Jan P. Williams , J. Nathan Kutz , Krithika Manohar

In this study, an efficient reanalysis strategy for dynamic topology optimization is proposed. Compared with other related studies, an online successive dynamic reanalysis method and POD-based approximate dynamic displacement strategy are…

数值分析 · 数学 2023-05-16 Shuhao Li , Hu Wang , Jichao Yin , Daozhen Guo , Guangyao Li

Metal-organic framework (MOFs) are nanoporous materials that could be used to capture carbon dioxide from the exhaust gas of fossil fuel power plants to mitigate climate change. In this work, we design and train a message passing neural…

材料科学 · 物理学 2020-12-08 Ali Raza , Faaiq Waqar , Arni Sturluson , Cory Simon , Xiaoli Fern

We present a method to construct reduced-order models for duct flows of Bingham media. Our method is based on proper orthogonal decomposition (POD) to find a low-dimensional approximation to the velocity and artificial neural network to…

数值分析 · 数学 2018-11-14 E. Muravleva , I. Oseledets , D. Koroteev

The expansion in automation of increasingly fast applications and low-power edge devices poses a particular challenge for optimization based control algorithms, like model predictive control. Our proposed machine-learning supported approach…

系统与控制 · 电气工程与系统科学 2025-01-08 Hendrik Alsmeier , Anton Savchenko , Rolf Findeisen

Deep Neural Networks trained as image auto-encoders have recently emerged as a promising direction for advancing the state-of-the-art in image compression. The key challenge in learning such networks is twofold: To deal with quantization,…

计算机视觉与模式识别 · 计算机科学 2019-06-05 Fabian Mentzer , Eirikur Agustsson , Michael Tschannen , Radu Timofte , Luc Van Gool

Characterizing conformational transitions in physical systems remains a fundamental challenge, as traditional sampling methods struggle with the high-dimensional nature of molecular systems and high-energy barriers between stable states.…

化学物理 · 物理学 2025-09-22 Magnus Petersen , Gemma Roig , Roberto Covino

Reduced-order models based on level-set methods are widely used tools to qualitatively capture and track the nonlinear dynamics of an interface. The aim of this paper is to develop a physics-informed, data-driven, statistically rigorous…

计算物理 · 物理学 2019-09-20 Hans Yu , Matthew P. Juniper , Luca Magri

Geological carbon capture and sequestration (CCS), where CO$_2$ is stored in subsurface formations, is a promising and scalable approach for reducing global emissions. However, if done incorrectly, it may lead to earthquakes and leakage of…

地球物理 · 物理学 2022-12-02 Anthony Corso , Yizheng Wang , Markus Zechner , Jef Caers , Mykel J. Kochenderfer

We propose a novel method to reconstruct the 3D shapes of transparent objects using hand-held captured images under natural light conditions. It combines the advantage of explicit mesh and multi-layer perceptron (MLP) network, a hybrid…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Jiamin Xu , Zihan Zhu , Hujun Bao , Weiwei Xu

Implicit neural representations with multi-layer perceptrons (MLPs) have recently gained prominence for a wide variety of tasks such as novel view synthesis and 3D object representation and rendering. However, a significant challenge with…

计算机视觉与模式识别 · 计算机科学 2022-02-01 Ruofan Liang , Hongyi Sun , Nandita Vijaykumar

A hybrid data assimilation algorithm is developed for complex dynamical systems with partial observations. The method starts with applying a spectral decomposition to the entire spatiotemporal fields, followed by creating a machine learning…

计算物理 · 物理学 2022-12-27 Changhong Mou , Leslie M. Smith , Nan Chen

Deep neural networks (DNNs) have proven to be effective models for accurate Memory Access Prediction (MAP), a critical task in mitigating memory latency through data prefetching. However, existing DNN-based MAP models suffer from the…

机器学习 · 计算机科学 2024-02-22 Neelesh Gupta , Pengmiao Zhang , Rajgopal Kannan , Viktor Prasanna

The Kalman filter (KF) is a widely-used algorithm for tracking dynamic systems that are captured by state space (SS) models. The need to fully describe a SS model limits its applicability under complex settings, e.g., when tracking based on…

信号处理 · 电气工程与系统科学 2023-04-21 Itay Buchnik , Damiano Steger , Guy Revach , Ruud J. G. van Sloun , Tirza Routtenberg , Nir Shlezinger

We propose a nonlinear reduced basis method for the efficient approximation of parametrized partial differential equations (PDEs), exploiting kernel proper orthogonal decomposition (KPOD) for the generation of a reduced-order space and…

数值分析 · 数学 2021-04-01 Matteo Salvador , Luca Dede' , Andrea Manzoni

Deep convolutional neural networks have shown high efficiency in computer visions and other applications. However, with the increase in the depth of the networks, the computational complexity is growing exponentially. In this paper, we…

机器学习 · 计算机科学 2021-01-08 Ali Mirzaeian , Sai Manoj , Ashkan Vakil , Houman Homayoun , Avesta Sasan

Over the past decade, climate change has become an increasing problem with one of the major contributing factors being carbon dioxide (CO2) emissions; almost 51% of total US carbon emissions are from factories. Current materials used in CO2…

机器学习 · 计算机科学 2023-11-29 Neel Redkar

Deep learning methods have been exerting their strengths in long-term time series forecasting. However, they often struggle to strike a balance between expressive power and computational efficiency. Resorting to multi-layer perceptrons…

机器学习 · 计算机科学 2024-05-21 Nannan Bian , Minhong Zhu , Li Chen , Weiran Cai