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In this work, we study physics-informed neural networks (PINNs) constrained by partial differential equations (PDEs) and their application in approximating PDEs with two characteristic scales. From a continuous perspective, our formulation…

最优化与控制 · 数学 2024-09-06 Michael Hintermüller , Denis Korolev

We present OpenICS, an image compressive sensing toolbox that includes multiple image compressive sensing and reconstruction algorithms proposed in the past decade. Due to the lack of standardization in the implementation and evaluation of…

计算机视觉与模式识别 · 计算机科学 2021-05-10 Jonathan Zhao , Matthew Westerham , Mark Lakatos-Toth , Zhikang Zhang , Avi Moskoff , Fengbo Ren

Quantum photonic integrated circuit (QPIC) is a promising tool for constructing integrated devices for quantum technology applications. In the optical regime, silicon photonics empowered by complementary-metal-oxide-semiconductor (CMOS)…

介观与纳米尺度物理 · 物理学 2019-03-06 Alto Osada , Yasutomo Ota , Ryota Katsumi , Masahiro Kakuda , Satoshi Iwamoto , Yasuhiko Arakawa

Partial Differential Equations (PDEs) have long been recognized as powerful tools for image processing and analysis, providing a framework to model and exploit structural and geometric properties inherent in visual data. Over the years,…

图像与视频处理 · 电气工程与系统科学 2024-12-17 Alejandro Garnung Menéndez

Image-to-3D models increasingly rely on hierarchical generation to disentangle geometry and texture. However, the design choices underlying these two-stage models--particularly the optimal choice of intermediate geometric…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Rishabh Kabra , Drew A. Hudson , Sjoerd van Steenkiste , Joao Carreira , Niloy J. Mitra

Continuous latent variables (LVs) are a key ingredient of many generative models, as they allow modelling expressive mixtures with an uncountable number of components. In contrast, probabilistic circuits (PCs) are hierarchical discrete…

机器学习 · 计算机科学 2023-10-27 Gennaro Gala , Cassio de Campos , Robert Peharz , Antonio Vergari , Erik Quaeghebeur

Several complex physical systems are governed by multi-scale partial differential equations (PDEs) that exhibit both smooth low-frequency components and localized high-frequency structures. Existing physics-informed neural network (PINN)…

机器学习 · 计算机科学 2026-02-19 Zhenzhen Huang , Haoyu Bian , Jiaquan Zhang , Yibei Liu , Kuien Liu , Caiyan Qin , Guoqing Wang , Yang Yang , Chaoning Zhang

Learning the full family of solutions to parameterized partial differential equations (PDEs) is a central challenge to our ability to model the behavior of heterogeneous systems, with a variety of fundamental and application-oriented…

计算物理 · 物理学 2026-01-26 Milad Panahi , Giovanni Michele Porta , Monica Riva , Alberto Guadagnini

We challenge the current thinking and approach to the design of photonic integrated circuits (PICs) for applications in communications, quantum information and sensing. The standard PICs are based on directional couplers, that provide a…

It has been shown that the existence of a Partial Integral Equation (PIE) representation of a Partial Differential Equation (PDE) simplifies many numerical aspects of analysis, simulation, and optimal control. However, the PIE…

最优化与控制 · 数学 2024-03-14 Sachin Shivakumar , Amritam Das , Siep Weiland , Matthew Peet

In this article we describe a unifying framework for variational electromagnetic particle schemes of spectral type, and we propose a novel spectral Particle-In-Cell (PIC) scheme that preserves a discrete Hamiltonian structure. Our work is…

计算物理 · 物理学 2021-02-04 Martin Campos Pinto , Jakob Ameres , Katharina Kormann , Eric Sonnendrücker

Quantum algorithms for partial differential equations (PDEs) face severe practical constraints on near-term hardware: limited qubit counts restrict spatial resolution to coarse grids, while circuit depth limitations prevent accurate…

机器学习 · 计算机科学 2025-12-08 Bruno Jacob , Amanda A. Howard , Panos Stinis

The set of externally visible properties associated with process variables in the Experimental Physics and Industrial Control System (EPICS) is predefined in the EPICS base distribution and is therefore not extensible by plug-compatible…

网络与互联网体系结构 · 计算机科学 2007-05-23 J. Hill , R. Lange

We present a new Partial Integral Equation (PIE) representation of Partial Differential Equations (PDEs) in which it is possible to use convex optimization to perform stability analysis with little or no conservatism. The first result gives…

偏微分方程分析 · 数学 2020-09-14 Matthew M. Peet

We expose (without proofs) a unified computational approach to integrable structures (including recursion, Hamiltonian, and symplectic operators) based on geometrical theory of partial differential equations. We adopt a coordinate based…

可精确求解与可积系统 · 物理学 2012-07-17 Iosif Krasil'shchik , Alexander Verbovetsky , Raffaele Vitolo

A template-based generic programming approach was presented in a previous paper that separates the development effort of programming a physical model from that of computing additional quantities, such as derivatives, needed for embedded…

Partial differential equations (PDE) on manifolds arise in many areas, including mathematics and many applied fields. Among all kinds of PDEs, the Poisson-type equations including the standard Poisson equation and the related eigenproblem…

数值分析 · 数学 2015-08-05 Zhen Li , Zuoqiang Shi , Jian Sun

Since the seminal work of [9] and their Physics-Informed neural networks (PINNs), many efforts have been conducted towards solving partial differential equations (PDEs) with Deep Learning models. However, some challenges remain, for…

机器学习 · 计算机科学 2023-11-27 Marien Chenaud , José Alves , Frédéric Magoulès

Solving partial differential equations (PDEs) with machine learning has recently attracted great attention, as PDEs are fundamental tools for modeling real-world systems that range from fundamental physical science to advanced engineering…

机器学习 · 计算机科学 2025-05-26 Changfan Yang , Lichen Bai , Yinpeng Wang , Shufei Zhang , Zeke Xie

Photonic integrated circuits (PIC) currently rely on application-specific designs that are geared towards a particular functionality. Development of such application-specific PIC requires considerable effort and often involves several…