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Shape optimization models with one or more shapes are considered in this chapter. Of particular interest for applications are problems in which where a so-called shape functional is constrained by a partial differential equation (PDE)…

最优化与控制 · 数学 2021-07-19 Caroline Geiersbach , Estefania Loayza-Romero , Kathrin Welker

We present SuperSCS: a fast and accurate method for solving large-scale convex conic problems. SuperSCS combines the SuperMann algorithmic framework with the Douglas-Rachford splitting which is applied on the homogeneous self-dual embedding…

最优化与控制 · 数学 2019-03-18 Pantelis Sopasakis , Krina Menounou , Panagiotis Patrinos

We develop and apply a novel shape optimization exemplified for a two-blade rotor with respect to the figure of merit ($FM$). This topologically assisted optimization (TAO) contains two steps. First a global evolutionary optimization is…

流体动力学 · 物理学 2023-05-17 Tianyu Wang , Yannian Yang , Xuanwu Chen , Pengyu Li , Angelo Iollo , Guy Y. Cornejo Maceda , Bernd R. Noack

The parallelism afforded by GPUs presents significant advantages in training controllers through reinforcement learning (RL). However, integrating model-based optimization into this process remains challenging due to the complexity of…

机器人学 · 计算机科学 2024-08-20 Se Hwan Jeon , Seungwoo Hong , Ho Jae Lee , Charles Khazoom , Sangbae Kim

This paper presents a novel method for reformulating non-differentiable collision avoidance constraints into smooth nonlinear constraints using strong duality of convex optimization. We focus on a controlled object whose goal is to avoid…

最优化与控制 · 数学 2018-06-12 Xiaojing Zhang , Alexander Liniger , Francesco Borrelli

In this work, we consider constrained stochastic optimization problems under hidden convexity, i.e., those that admit a convex reformulation via non-linear (but invertible) map $c(\cdot)$. A number of non-convex problems ranging from…

最优化与控制 · 数学 2024-11-12 Ilyas Fatkhullin , Niao He , Yifan Hu

There is growing interest in solving computer vision problems such as mesh or point set alignment using Adiabatic Quantum Computing (AQC). Unfortunately, modern experimental AQC devices such as D-Wave only support Quadratic Unconstrained…

Digital Compute-in-Memory (DCiM) accelerates neural networks by reducing data movement. Approximate DCiM can further improve power-performance-area (PPA), but demands accuracy-constrained co-optimization across coupled architecture and…

机器学习 · 计算机科学 2026-03-16 Yiqi Zhou , Yue Yuan , Yikai Wang , Bohao Liu , Qinxin Mei , Zhuohua Liu , Shan Shen , Wei Xing , Daying Sun , Li Li , Guozhu Liu

We propose a new family of mapped WENO schemes by using several adaptive control functions and a smoothing approximation of the signum function. The proposed schemes introduce the adaptivity and admit an extensive permitted range of the…

数值分析 · 数学 2022-02-04 Ruo Li , Wei Zhong

Precision tuning or customized precision number representations is emerging, in these recent years, as one of the most promising techniques that has a positive impact on the footprint of programs concerning energy consumption, bandwidth…

软件工程 · 计算机科学 2022-03-16 Dorra Ben Khalifa , Matthieu Martel

Significant effort has been made to solve computationally expensive optimization problems in the past two decades, and various optimization methods incorporating surrogates into optimization have been proposed. However, most optimization…

神经与进化计算 · 计算机科学 2022-04-13 Julian Blank , Kalyanmoy Deb

Model predictive control (MPC) is a promising approach for the lateral and longitudinal control of autonomous vehicles. However, the parameterization of the MPC with respect to high-level requirements such as passenger comfort as well as…

系统与控制 · 电气工程与系统科学 2022-12-14 David Stenger , Robert Ritschel , Felix Krabbes , Rick Voßwinkel , Hendrik Richter

Stochastic Optimal Control (SOC) problems arise in systems influenced by uncertainty, such as autonomous robots or financial models. Traditional methods like dynamic programming are often intractable for high-dimensional, nonlinear systems…

最优化与控制 · 数学 2025-04-25 Apurva Patil

Quadratic optimization problems (QPs) are ubiquitous, and solution algorithms have matured to a reliable technology. However, the precision of solutions is usually limited due to the underlying floating-point operations. This may cause…

最优化与控制 · 数学 2019-08-20 Tobias Weber , Sebastian Sager , Ambros Gleixner

An innovative numerical algorithm for solving infinite-horizon optimal control problems is introduced in this paper, using the IsoCost-HyperSurface (ICHS) concept. In the state space of an optimal control system, an ICHS is defined as a set…

系统与控制 · 电气工程与系统科学 2022-09-15 Saeed Rahimi , Amir Salimi Lafmejani , Ahmad Kalhor

In this paper, we present a novel control scheme for feedback optimization. That is, we propose a discrete-time controller that can steer the steady state of a physical plant to the solution of a constrained optimization problem without…

系统与控制 · 电气工程与系统科学 2020-07-09 Verena Häberle , Adrian Hauswirth , Lukas Ortmann , Saverio Bolognani , Florian Dörfler

Topology optimization facilitates the automated design of high-performance structures across various engineering fields but, if unconstrained, often produces designs that are complex and difficult to manufacture. A key attribute of the…

应用物理 · 物理学 2025-04-25 Vanessa Cool , Niels Aage , Ole Sigmund

The rising usage of AI and ML-based processing across application domains has exacerbated the need for low-cost ML implementation, specifically for resource-constrained embedded systems. To this end, approximate computing, an approach that…

硬件体系结构 · 计算机科学 2024-04-22 Siva Satyendra Sahoo , Salim Ullah , Soumyo Bhattacharjee , Akash Kumar

Mixed-Integer Second-Order Cone Programs (MISOCPs) form a nice class of mixed-inter convex programs, which can be solved very efficiently due to the recent advances in optimization solvers. Our paper bridges the gap between modeling a class…

最优化与控制 · 数学 2022-06-22 Amir Ahmadi-Javid , Pooya Hoseinpour

Two new optimization techniques based on projections onto convex space (POCS) framework for solving convex and some non-convex optimization problems are presented. The dimension of the minimization problem is lifted by one and sets…