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In this work, we study in detail the performance of Higher Order Dynamic Mode Decomposition (HODMD) technique when applied to echocardiography images. HODMD is a data-driven method generally used in fluid dynamics and in the analysis of…

图像与视频处理 · 电气工程与系统科学 2022-01-11 Nourelhouda Groun , Maria Villalba-Orero , Enrique Lara-Pezzi , Eusebio Valero , Jesus Garicano-Mena , Soledad Le Clainche

Koopman operators linearize nonlinear dynamical systems, making their spectral information of crucial interest. Numerous algorithms have been developed to approximate these spectral properties, and Dynamic Mode Decomposition (DMD) stands…

动力系统 · 数学 2023-11-13 Matthew J. Colbrook , Qin Li , Ryan V. Raut , Alex Townsend

We present a low-rank Koopman operator formulation for accelerating deformable subspace simulation. Using a Dynamic Mode Decomposition (DMD) parameterization of the Koopman operator, our method learns the temporal evolution of deformable…

图形学 · 计算机科学 2026-02-10 Yue Chang , Peter Yichen Chen , Eitan Grinspun , Maurizio M. Chiaramonte

The analysis of nonlinear dynamical systems based on the Koopman operator is attracting attention in various applications. Dynamic mode decomposition (DMD) is a data-driven algorithm for Koopman spectral analysis, and several variants with…

动力系统 · 数学 2017-10-31 Naoya Takeishi , Yoshinobu Kawahara , Takehisa Yairi

We propose a novel robust decentralized graph clustering algorithm that is provably equivalent to the popular spectral clustering approach. Our proposed method uses the existing wave equation clustering algorithm that is based on…

机器学习 · 计算机科学 2024-02-05 Hongyu Zhu , Stefan Klus , Tuhin Sahai

Deep learning (DL) methods have outperformed parametric models such as historical average, ARIMA and variants in predicting traffic variables into short and near-short future, that are critical for traffic management. Specifically,…

机器学习 · 计算机科学 2023-07-18 Agnimitra Sengupta , Adway Das , S. Ilgin Guler

This work continues the parametric investigation on the sampling nuances of the Dynamic Mode Decomposition (DMD) under the Koopman analysis. Through turbulent wakes, the investigation corroborated the generality of the universal convergence…

Nowadays, traffic management has become a challenge for urban areas, which are covering larger geographic spaces and facing the generation of different kinds of traffic data. This article presents a robust traffic estimation framework for…

最优化与控制 · 数学 2016-06-13 Edward S. Canepa , Christian G. Claudel

Advances in machine learning and the growing trend towards effortless data generation in real-world systems has led to an increasing interest for data-inferred models and data-based control in robotics. It seems appealing to govern robots…

系统与控制 · 电气工程与系统科学 2025-11-05 Mario Rosenfelder , Lea Bold , Hannes Eschmann , Peter Eberhard , Karl Worthmann , Henrik Ebel

Extended dynamic mode decomposition (EDMD) is a data-driven algorithm for approximating spectral data of the Koopman operator associated to a dynamical system, combining a Galerkin method of order N and collocation method of order M.…

动力系统 · 数学 2024-04-15 Elliz Akindji , Julia Slipantschuk , Oscar F. Bandtlow , Wolfram Just

Accurate traffic congestion classification requires models that jointly capture roadway scene context and non-stationary traffic motion, yet most prior work treats these requirements in isolation. Vision-based methods often depend on…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Eugene Kofi Okrah Denteh , Blessing Agyei Kyem , Joshua Kofi Asamoah , Armstrong Aboah

Koopman decomposition is a non-linear generalization of eigen-decomposition, and is being increasingly utilized in the analysis of spatio-temporal dynamics. Well-known techniques such as the dynamic mode decomposition (DMD) and its linear…

动力系统 · 数学 2021-05-12 Shaowu Pan , Nicholas Arnold-Medabalimi , Karthik Duraisamy

In this paper, we provide a new algorithm for the finite dimensional approximation of the linear transfer Koopman and Perron-Frobenius operator from time series data. We argue that existing approach for the finite dimensional approximation…

动力系统 · 数学 2017-09-27 Bowen Huang , Umesh Vaidya

Global information about dynamical systems can be extracted by analysing associated infinite-dimensional transfer operators, such as Perron-Frobenius and Koopman operators as well as their infinitesimal generators. In practice, these…

数值分析 · 数学 2024-06-21 Liam Llamazares-Elias , Samir Llamazares-Elias , Jonas Latz , Stefan Klus

Koopman operator theory has served as the basis to extract dynamics for nonlinear system modeling and control across settings, including non-holonomic mobile robot control. There is a growing interest in research to derive robustness…

机器人学 · 计算机科学 2021-04-13 Lu Shi , Konstantinos Karydis

Mixed vehicle platoons, comprising connected and automated vehicles (CAVs) and human-driven vehicles (HDVs), hold significant potential for enhancing traffic performance. However, most existing control strategies assume linear system…

系统与控制 · 电气工程与系统科学 2025-11-07 Shuai Li , Jiawei Wang , Kaidi Yang , Qing Xu , Jianqiang Wang , Keqiang Li

Dynamic Mode Decomposition (DMD) and its extensions (EDMD) have been at the forefront of data-based approaches to Koopman operators. Most (E)DMD algorithms assume that the entire state is sampled at a uniform sampling rate. In this paper,…

系统与控制 · 电气工程与系统科学 2024-04-11 Ramachandran Anantharaman , Alexandre Mauroy

Traffic Matrix estimation has always caught attention from researchers for better network management and future planning. With the advent of high traffic loads due to Cloud Computing platforms and Software Defined Networking based tunable…

网络与互联网体系结构 · 计算机科学 2018-11-07 Sameer Qazi , Syed Muhammad Atif , Muhammad Bilal Kadri

Dynamic Mode Decomposition (DMD) is a popular data-driven analysis technique used to decompose complex, nonlinear systems into a set of modes, revealing underlying patterns and dynamics through spectral analysis. This review presents a…

动力系统 · 数学 2023-12-22 Matthew J. Colbrook

Dynamic mode decomposition (DMD) is a recently developed tool for the analysis of the behavior of complex dynamical systems. In this paper, we will propose an extension of DMD that exploits low-rank tensor decompositions of potentially…

数值分析 · 数学 2019-08-14 Stefan Klus , Patrick Gelß , Sebastian Peitz , Christof Schütte