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Noise plagues many numerical datasets, where the recorded values in the data may fail to match the true underlying values due to reasons including: erroneous sensors, data entry/processing mistakes, or imperfect human estimates. We consider…

机器学习 · 统计学 2024-03-14 Hang Zhou , Jonas Mueller , Mayank Kumar , Jane-Ling Wang , Jing Lei

Given a linear dynamical system, we consider the problem of constructing an approximate system using only a subset of the sensors out of the total set such that the observability Gramian of the new system is approximately equal to that of…

系统与控制 · 计算机科学 2018-11-08 Shaunak D. Bopardikar

This work addresses the problem of vehicle path planning in the presence of obstacles and uncertainties, which is a fundamental problem in robotics. While many path planning algorithms have been proposed for decades, many of them have dealt…

最优化与控制 · 数学 2018-09-11 Kazuhide Okamoto , Panagiotis Tsiotras

We address the problem of determining optimal sensor precisions for estimating the states of linear time-varying discrete-time stochastic dynamical systems, with guaranteed bounds on the estimation errors. This is performed in the Kalman…

系统与控制 · 电气工程与系统科学 2021-06-15 Niladri Das , Raktim Bhattacharya

Learning to forecast trajectories of intelligent agents has caught much more attention recently. However, it remains a challenge to accurately account for agents' intentions and social behaviors when forecasting, and in particular, to…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Conghao Wong , Ziqian Zou , Beihao Xia , Xinge You

We present parameter learning in a Gaussian variational inference setting using only noisy measurements (i.e., no groundtruth). This is demonstrated in the context of vehicle trajectory estimation, although the method we propose is general.…

机器人学 · 计算机科学 2020-07-13 Jeremy N. Wong , David J. Yoon , Angela P. Schoellig , Timothy D. Barfoot

Diffusion models have recently emerged as the dominant approach in visual generation tasks. However, the lengthy denoising chains and the computationally intensive noise estimation networks hinder their applicability in low-latency and…

计算机视觉与模式识别 · 计算机科学 2026-04-23 Qian Zeng , Jie Song , Yuanyu Wan , Huiqiong Wang , Mingli Song

Understanding human motion is crucial for accurate pedestrian trajectory prediction. Conventional methods typically rely on supervised learning, where ground-truth labels are directly optimized against predicted trajectories. This amplifies…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Yizhou Huang , Yihua Cheng , Kezhi Wang

Identifying the dynamic properties of manipulated objects is essential for safe and accurate robot control. Most methods rely on low noise force torque sensors, long exciting signals, and solving nonlinear optimization problems, making the…

机器人学 · 计算机科学 2024-08-22 Donghoon Baek , Bo Peng , Saurabh Gupta , Joao Ramos

Advanced driver assistance systems have improved comfort, safety, and efficiency of modern vehicles. However, sensor limitations lead to noisy lane estimates that pose a significant challenge in developing performant control architectures.…

系统与控制 · 电气工程与系统科学 2025-09-05 Leon Greiser , Christian Rathgeber , Vladislav Nenchev , Sören Hohmann

The estimation of spatiotemporal data from limited sensor measurements is a required task across many scientific disciplines. The sensor selection problem, which aims to optimize the placement of sensors, leverages innovations in greedy…

最优化与控制 · 数学 2022-12-19 Jiazhong Mei , Steven L. Brunton , J. Nathan Kutz

High fidelity estimation algorithms for robotics require accurate data. However, timestamping of sensor data is a key issue that rarely receives the attention it deserves. Inaccurate timestamping can be compensated for in post-processing…

机器人学 · 计算机科学 2025-07-09 Morten Nissov , Nikhil Khedekar , Kostas Alexis

Quantifying behaviors of robots which were generated autonomously from task-independent objective functions is an important prerequisite for objective comparisons of algorithms and movements of animals. The temporal sequence of such a…

信息论 · 计算机科学 2016-06-16 Georg Martius , Eckehard Olbrich

Diffusion models have emerged as the de facto choice for generating high-quality visual signals across various domains. However, training a single model to predict noise across various levels poses significant challenges, necessitating…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Tiankai Hang , Shuyang Gu , Xin Geng , Baining Guo

Frequency estimation is a fundamental problem in signal processing, with applications in radar imaging, underwater acoustics, seismic imaging, and spectroscopy. The goal is to estimate the frequency of each component in a multisinusoidal…

机器学习 · 计算机科学 2021-02-04 Gautier Izacard , Sreyas Mohan , Carlos Fernandez-Granda

Inaccurate tool localization is one of the main reasons for failures in automating surgical tasks. Imprecise robot kinematics and noisy observations caused by the poor visual acuity of an endoscopic camera make tool tracking challenging.…

机器人学 · 计算机科学 2024-04-02 Nikhil U. Shinde , Zih-Yun Chiu , Florian Richter , Jason Lim , Yuheng Zhi , Sylvia Herbert , Michael C. Yip

This paper addresses the problem of computing optimal impedance schedules for legged locomotion tasks involving complex contact interactions. We formulate the problem of impedance regulation as a trade-off between disturbance rejection and…

机器人学 · 计算机科学 2021-01-26 Bilal Hammoud , Majid Khadiv , Ludovic Righetti

Compensating for slip and skid is crucial for mobile robots navigating outdoor terrains. In these challenging environments, slipping and skidding introduce uncertainties into trajectory tracking systems, potentially compromising the safety…

机器人学 · 计算机科学 2023-10-24 Payam Nourizadeh , Fiona J Stevens McFadden , Will N Browne

Estimating the governing equation parameter values is essential for integrating experimental data with scientific theory to understand, validate, and predict the dynamics of complex systems. In this work, we propose a new method for…

动力系统 · 数学 2025-06-27 Cristian López , Keegan J. Moore

This article presents an algorithm for reducing measurement uncertainty of one physical quantity when given oversampled measurements of two physical quantities with correlated noise. The algorithm assumes that the aleatoric measurement…

信号处理 · 电气工程与系统科学 2021-11-30 James T. Meech , Phillip Stanley-Marbell