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This paper introduces a modified Byrd-Omojokun (BO) trust region algorithm to address the challenges posed by noisy function and gradient evaluations. The original BO method was designed to solve equality constrained problems and it forms…

最优化与控制 · 数学 2024-11-06 Shigeng Sun , Jorge Nocedal

Monocular height estimation (MHE) from remote sensing imagery has high potential in generating 3D city models efficiently for a quick response to natural disasters. Most existing works pursue higher performance. However, there is little…

计算机视觉与模式识别 · 计算机科学 2022-02-03 Zhitong Xiong , Sining Chen , Yilei Shi , Xiao Xiang Zhu

Optimizing industrial processes often involves gray-box models that couple algebraic glass-box equations with black-box components lacking analytic derivatives. Such systems challenge derivative-based solvers. The classical trust-region…

最优化与控制 · 数学 2026-04-15 Gul Hameed , Tao Chen , Antonio del Rio Chanona , Lorenz T. Biegler , Michael Short

Physics-informed machine learning and inverse modeling require the solution of ill-conditioned non-convex optimization problems. First-order methods, such as SGD and ADAM, and quasi-Newton methods, such as BFGS and L-BFGS, have been applied…

数值分析 · 数学 2021-05-18 Kailai Xu , Eric Darve

This paper presents an optimization-based receding horizon trajectory planning algorithm for dynamical systems operating in unstructured and cluttered environments. The proposed approach is a two-step procedure that uses a motion planning…

最优化与控制 · 数学 2019-12-12 Kristoffer Bergman , Oskar Ljungqvist , Torkel Glad , Daniel Axehill

In this work, we introduce a novel stochastic second-order method, within the framework of a non-monotone trust-region approach, for solving the unconstrained, nonlinear, and non-convex optimization problems arising in the training of deep…

最优化与控制 · 数学 2024-01-18 Natasa Krejic , Natasa Krklec Jerinkic , Angeles Martinez , Mahsa Yousefi

We propose a novel framework for analyzing convergence rates of stochastic optimization algorithms with adaptive step sizes. This framework is based on analyzing properties of an underlying generic stochastic process, in particular by…

最优化与控制 · 数学 2018-10-23 Jose Blanchet , Coralia Cartis , Matt Menickelly , Katya Scheinberg

Gradient-based hyperparameter optimization methods update hyperparameters using hypergradients, gradients of a meta criterion with respect to hyperparameters. Previous research used two distinct update strategies: optimizing hyperparameters…

机器学习 · 计算机科学 2024-05-28 Ryuichiro Hataya , Yoshinobu Kawahara

This paper considers state estimation for general nonlinear discrete-time systems subject to measurement noise and possibly unbounded unknown inputs. To approach this problem, we first propose the concept of strong nonlinear detectability.…

系统与控制 · 电气工程与系统科学 2025-12-01 Yang Guo , Jaime A. Moreno , Stefan Streif

Gradient Boosting Machines (GBMs) have demonstrated remarkable success in solving diverse problems by utilizing Taylor expansions in functional space. However, achieving a balance between performance and generality has posed a challenge for…

机器学习 · 计算机科学 2023-04-12 Jiaqi Luo , Zihao Wei , Junkai Man , Shixin Xu

We develop a trust-region method for minimizing the sum of a smooth term $f$ and a nonsmooth term $h$), both of which can be nonconvex. Each iteration of our method minimizes a possibly nonconvex model of $f + h$ in a trust region. The…

最优化与控制 · 数学 2021-08-04 Aleksandr Y. Aravkin , Robert Baraldi , Dominique Orban

Nanomechanical resonant sensors are used in mass spectrometry via detection of resonance frequency jumps. There is a fundamental trade-off between detection speed and accuracy. Temporal and size resolution are limited by the resonator…

仪器与探测器 · 物理学 2024-01-17 Mete Erdogan , Nuri Berke Baytekin , Serhat Emre Coban , Alper Demir

The fusion between an inertial navigation system and global navigation satellite systems is regularly used in many platforms such as drones, land vehicles, and marine vessels. The fusion is commonly carried out in a model-based extended…

系统与控制 · 电气工程与系统科学 2022-09-05 Barak Or , Itzik Klein

Hardware-aware training (HAT) is widely used to improve the robustness of neural networks on non-ideal AI accelerators, such as analog in-memory computing (IMC) systems. However, not all hardware-induced distortions are equally compensable…

机器学习 · 计算机科学 2026-05-12 Yunxuan Fang , Xinhe Wang

Over recent years, deep learning based image registration has achieved impressive accuracy in many domains, including medical imaging and, specifically, human neuroimaging with magnetic resonance imaging (MRI). However, the uncertainty…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Xiaoling Hu , Karthik Gopinath , Peirong Liu , Malte Hoffmann , Koen Van Leemput , Oula Puonti , Juan Eugenio Iglesias

This paper presents an algorithm to improve state estimation for legged robots. Among existing model-based state estimation methods for legged robots, the contact-aided invariant extended Kalman filter defines the state on a Lie group to…

机器人学 · 计算机科学 2026-01-29 Seokju Lee , Hyun-Bin Kim , Kyung-Soo Kim

The problem of adaptive Kalman filtering for a discrete observable linear time-varying system with unknown noise covariance matrices is addressed in this paper. The measurement difference autocovariance method is used to formulate a linear…

系统与控制 · 电气工程与系统科学 2021-04-27 Rahul Moghe , Maruthi R. Akella , Renato Zanetti

Integrating model-based machine learning methods into deep neural architectures allows one to leverage both the expressive power of deep neural nets and the ability of model-based methods to incorporate domain-specific knowledge. In…

机器学习 · 计算机科学 2020-12-10 Chonghyuk Song , Eunseok Kim , Inwook Shim

Careful tuning of the learning rate, or even schedules thereof, can be crucial to effective neural net training. There has been much recent interest in gradient-based meta-optimization, where one tunes hyperparameters, or even learns an…

机器学习 · 计算机科学 2018-03-07 Yuhuai Wu , Mengye Ren , Renjie Liao , Roger Grosse

Deep neural networks have become widely used, obtaining remarkable results in domains such as computer vision, speech recognition, natural language processing, audio recognition, social network filtering, machine translation, and…

神经与进化计算 · 计算机科学 2020-02-03 Divya Gopinath , Guy Katz , Corina S. Pasareanu , Clark Barrett