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Accurate gravity field models are essential for safe proximity operations around small bodies. State-of-the-art techniques use spherical harmonics or high-fidelity polyhedron shape models. Unfortunately, these techniques can become…

机器人学 · 计算机科学 2021-12-21 Daniel Neamati , Yashwanth Kumar Nakka , Soon-Jo Chung

Spatiotemporal prediction plays a critical role in numerous real-world applications such as urban planning, transportation optimization, disaster response, and pandemic control. In recent years, researchers have made significant progress by…

机器学习 · 计算机科学 2025-09-03 Dahai Yu , Dingyi Zhuang , Lin Jiang , Rongchao Xu , Xinyue Ye , Yuheng Bu , Shenhao Wang , Guang Wang

Statistical models are inherently uncertain. Quantifying or at least upper-bounding their uncertainties is vital for safety-critical systems such as autonomous vehicles. While standard neural networks do not report this information, several…

A learning-based safety filter is developed for discrete-time linear time-invariant systems with unknown models subject to Gaussian noises with unknown covariance. Safety is characterized using polytopic constraints on the states and…

机器学习 · 计算机科学 2023-05-09 Farhad Farokhi , Alex S. Leong , Mohammad Zamani , Iman Shames

Though deep learning has achieved advanced performance recently, it remains a challenging task in the field of medical imaging, as obtaining reliable labeled training data is time-consuming and expensive. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Yixin Wang , Yao Zhang , Jiang Tian , Cheng Zhong , Zhongchao Shi , Yang Zhang , Zhiqiang He

Deep-learning-based data-driven forecasting methods have produced impressive results for traffic forecasting. A major limitation of these methods, however, is that they provide forecasts without estimates of uncertainty, which are critical…

机器学习 · 计算机科学 2022-04-07 Tanwi Mallick , Prasanna Balaprakash , Jane Macfarlane

Accurate sensor calibration is crucial for autonomous systems, yet its uncertainty quantification remains underexplored. We present the first approach to integrate uncertainty awareness into online extrinsic calibration, combining Monte…

计算机视觉与模式识别 · 计算机科学 2025-04-28 Mathieu Cocheteux , Julien Moreau , Franck Davoine

Accurate localization using visual information is a critical yet challenging task, especially in urban environments where nearby buildings and construction sites significantly degrade GNSS (Global Navigation Satellite System) signal…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Xiaofan Li , Zhihao Xu , Chenming Wu , Zhao Yang , Yumeng Zhang , Jiang-Jiang Liu , Haibao Yu , Fan Duan , Xiaoqing Ye , Yuan Wang , Shirui Li , Xun Sun , Ji Wan , Jun Wang

This paper proposes a fast and scalable method for uncertainty quantification of machine learning models' predictions. First, we show the principled way to measure the uncertainty of predictions for a classifier based on Nadaraya-Watson's…

Characterizing uncertainty is a common issue in nuclear measurement and has important implications for reliable physical discovery. Traditional methods are either insufficient to cope with the heterogeneous nature of uncertainty or…

数据分析、统计与概率 · 物理学 2022-03-01 Pengcheng Ai , Zhi Deng , Yi Wang , Chendi Shen

Deep learning is gaining increasing popularity for spatiotemporal forecasting. However, prior works have mostly focused on point estimates without quantifying the uncertainty of the predictions. In high stakes domains, being able to…

人工智能 · 计算机科学 2021-06-15 Dongxia Wu , Liyao Gao , Xinyue Xiong , Matteo Chinazzi , Alessandro Vespignani , Yi-An Ma , Rose Yu

Robust navigation in urban environments has received a considerable amount of both academic and commercial interest over recent years. This is primarily due to large commercial organizations such as Google and Uber stepping into the…

机器人学 · 计算机科学 2018-06-26 Ryan M. Watson , Jason N. Gross

Global Navigation Satellite Systems (GNSS) are integrated into many devices. However, civilian GNSS signals are usually not cryptographically protected. This makes attacks that forge signals relatively easy. Considering modern devices often…

密码学与安全 · 计算机科学 2025-05-13 Wenjie Liu , Panos Papadimitratos

Global Navigation Satellite Systems (GNSS) are vital for reliable urban positioning. However, multipath and non-line-of-sight reception often introduce large measurement errors that degrade accuracy. Learning-based methods for predicting…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Jiaqi Zhu , Shouyi Lu , Ziyao Li , Guirong Zhuo , Lu Xiong

Most mobile robots for indoor use rely on 2D laser scanners for localization, mapping and navigation. These sensors, however, cannot detect transparent surfaces or measure the full occupancy of complex objects such as tables. Deep Neural…

机器人学 · 计算机科学 2020-09-04 Francesco Verdoja , Jens Lundell , Ville Kyrki

We consider the problem of uncertainty estimation in the context of (non-Bayesian) deep neural classification. In this context, all known methods are based on extracting uncertainty signals from a trained network optimized to solve the…

机器学习 · 计算机科学 2019-04-25 Yonatan Geifman , Guy Uziel , Ran El-Yaniv

State estimation or filtering serves as a fundamental task to enable intelligent decision-making in applications such as autonomous vehicles, robotics, healthcare monitoring, smart grids, intelligent transportation, and predictive…

机器学习 · 计算机科学 2025-06-16 Aamir Hussain Chughtai

Accurate uncertainty quantification is a major challenge in deep learning, as neural networks can make overconfident errors and assign high confidence predictions to out-of-distribution (OOD) inputs. The most popular approaches to estimate…

Contrastive approaches to representation learning have recently shown great promise. In contrast to generative approaches, these contrastive models learn a deterministic encoder with no notion of uncertainty or confidence. In this paper, we…

机器学习 · 计算机科学 2020-10-06 Mike Wu , Noah Goodman

Neural networks make accurate predictions but often fail to provide reliable uncertainty estimates, especially under covariate distribution shifts between training and testing. To address this problem, we propose a Bayesian framework for…

机器学习 · 统计学 2025-12-22 Yuli Slavutsky , David M. Blei