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In a recent paper we described a novel approach to the detection and parameter estimation of a non-Gaussian stochastic background of gravitational waves. In this work we propose an improved version of the detection procedure, preserving…

广义相对论与量子宇宙学 · 物理学 2023-08-22 Matteo Ballelli , Riccardo Buscicchio , Barbara Patricelli , Anirban Ain , Giancarlo Cella

In the future, extraterrestrial expeditions will not only be conducted by rovers but also by flying robots. The technical demonstration drone Ingenuity, that just landed on Mars, will mark the beginning of a new era of exploration…

In this work, a fully nonparametric geostatistical approach to estimate threshold exceeding probabilities is proposed. To estimate the large-scale variability (spatial trend) of the process, the nonparametric local linear regression…

统计方法学 · 统计学 2024-02-01 Rubén Fernández-casal , Sergio Castillo-Páez , Mario Francisco-Fernández

This work characterises the effect of mutual interference in a planar network of pulsed-radar devices. Using stochastic geometry tools and a strongest interferer approximation, we derive simple closed-form expressions that pinpoint the role…

网络与互联网体系结构 · 计算机科学 2018-09-10 Andrea Munari , Ljiljana Simić , Marina Petrova

This paper studies the sparse identification problem of unknown sparse parameter vectors in stochastic dynamic systems. Firstly, a novel sparse identification algorithm is proposed, which can generate sparse estimates based on least squares…

最优化与控制 · 数学 2024-04-02 Ziming Wang , Xinghua Zhu

With the ease of deployment, capabilities of evading the jammers and obscuring their existence, unmanned aerial vehicles (UAVs) are one of the most suitable candidates to perform surveillance. There exists a body of literature in which the…

系统与控制 · 电气工程与系统科学 2020-12-04 Seyyedali Hosseinalipour , Ali Rahmati , Do Young Eun , Huaiyu Dai

In this paper we investigate how gradient-based algorithms such as gradient descent, (multi-pass) stochastic gradient descent, its persistent variant, and the Langevin algorithm navigate non-convex loss-landscapes and which of them is able…

无序系统与神经网络 · 物理学 2022-03-22 Francesca Mignacco , Pierfrancesco Urbani , Lenka Zdeborová

We present novel upper and lower bounds to estimate the collision probability of motion plans for autonomous agents with discrete-time linear Gaussian dynamics. Motion plans generated by planning algorithms cannot be perfectly executed by…

机器人学 · 计算机科学 2021-11-01 Apurva Patil , Takashi Tanaka

Given a network, the critical node detection problem finds a subset of nodes whose removal disrupts the network connectivity. Since many real-world systems are naturally modeled as graphs, assessing the vulnerability of the network is…

离散数学 · 计算机科学 2025-12-02 Tuguldur Bayarsaikhan , Altannar Chinchuluun , Ashwin Arulselvan , Panos Pardalos

Autonomous vehicles (AV) look set to become common on our roads within the next few years. However, to achieve the final breakthrough, not only functional progress is required, but also satisfactory safety assurance must be provided. Among…

机器人学 · 计算机科学 2025-06-04 Peter Popov , Lorenzo Strigini , Cornelius Buerkle , Fabian Oboril , Michael Paulitsch

Mapping and localization are crucial problems in robotics and autonomous driving. Recent advances in 3D Gaussian Splatting (3DGS) have enabled precise 3D mapping and scene understanding by rendering photo-realistic images. However, existing…

机器人学 · 计算机科学 2025-01-24 Jaewon Lee , Mangyu Kong , Minseong Park , Euntai Kim

This paper presents two variations of a novel stochastic prediction algorithm that enables mobile robots to accurately and robustly predict the future state of complex dynamic scenes. The proposed algorithm uses a variational autoencoder to…

机器人学 · 计算机科学 2023-10-17 Zhanteng Xie , Philip Dames

This paper presents an algorithm to apply nonlinear control design approaches in the case of stochastic systems with partial state observation. Deterministic nonlinear control approaches are formulated under the assumption of full state…

系统与控制 · 电气工程与系统科学 2023-09-19 Mohammad S. Ramadan , Mohammad Alsuwaidan , Ahmed Atallah , Sylvia Herbert

Stochastic coordinate descent algorithms are efficient methods in which each iterate is obtained by fixing most coordinates at their values from the current iteration, and approximately minimizing the objective with respect to the remaining…

机器学习 · 统计学 2025-04-02 Eméric Gbaguidi

Sparse signal recovery is one of the most fundamental problems in various applications, including medical imaging and remote sensing. Many greedy algorithms based on the family of hard thresholding operators have been developed to solve the…

信号处理 · 电气工程与系统科学 2023-06-09 Rachel Grotheer , Shuang Li , Anna Ma , Deanna Needell , Jing Qin

Minimax detection of Gaussian stochastic sequences (signals) with unknown covariance matrices is studied. For a fixed false alarm probability (1-st kind error probability), the performance of the minimax detection is being characterized by…

信息论 · 计算机科学 2021-04-14 M. V. Burnashev

In this paper, closed-loop entry guidance in a randomly perturbed atmosphere, using bank angle control, is posed as a stochastic optimal control problem. The entry trajectory, as well as the closed-loop controls, are both modeled as random…

系统与控制 · 电气工程与系统科学 2022-01-19 Jack Ridderhof , Panagiotis Tsiotras , Breanna J. Johnson

Safe path planning is a crucial component in autonomous robotics. The many approaches to find a collision free path can be categorically divided into trajectory optimisers and sampling-based methods. When planning using occupancy maps, the…

机器人学 · 计算机科学 2017-03-02 Gilad Francis , Lionel Ott , Fabio Ramos

Accurate platform localization is an integral component of most robotic systems. As these robotic systems become more ubiquitous, it is necessary to develop robust state estimation algorithms that are able to withstand novel and…

机器人学 · 计算机科学 2019-10-15 Ryan M. Watson , Jason N. Gross , Clark N. Taylor , Robert C. Leishman

This paper poses a theoretical characterization of the stochastic reachability problem in terms of probability measures, capturing the probability measure of the state of the system that satisfies the reachability specification for all…