Results 21 to 30 of about 128,009 (300)

Data-driven XGBoost-based filter for target tracking

open access: yesThe Journal of Engineering, 2019
In recent years, the data-driven approach has been introduced in the field of target tracking as a powerful tool developing the end-to-end mapping relationship between input features and outputs.
Bowen Zhai   +4 more
doaj   +1 more source

Estimation and control using sampling-based Bayesian reinforcement learning

open access: yesIET Cyber-Physical Systems, 2019
Real-world autonomous systems operate under uncertainty about both their pose and dynamics. Autonomous control systems must simultaneously perform estimation and control tasks to maintain robustness to changing dynamics or modelling errors.
Patrick Slade   +3 more
doaj   +1 more source

Traumatic brain injury probability of survival assessment in adults using iterative random comparison classification

open access: yesHealthcare Technology Letters, 2020
Trauma brain injury (TBI) is the most common cause of death and disability in young adults. A method to determine the probability of survival (Ps) in trauma called iterative random comparison classification (IRCC) was developed and its performance was ...
Mohammed Salah   +3 more
doaj   +1 more source

Fast Globally Optimal Catalog Matching using MIQCP

open access: yesThe Astronomical Journal, 2023
We propose a novel exact method to solve the probabilistic catalog matching problem faster than previously possible. Our new approach uses mixed integer programming and introduces quadratic constraints to shrink the problem by multiple orders of ...
Jacob Feitelberg   +2 more
doaj   +1 more source

Variational Bayesian inference of linear state space models

open access: yesThe Journal of Engineering, 2019
This article studies a variational Bayesian method to fix the linear regression (LR) model of which regressors are Gaussian distributed with non-zero prior means, and then apply the method to the linear state space (LSS) model.
Chuanchao Pan   +2 more
doaj   +1 more source

Full polarisation ISAR imaging based on joint sparse Bayesian compressive sensing

open access: yesThe Journal of Engineering, 2019
This study proposes a joint sparse algorithm based on Bayesian compressive sensing to improve full polarisation inverse synthetic aperture radar (ISAR) imaging performance.
Yalong Gu   +4 more
doaj   +1 more source

A variable structure multi‐model maneuvering target tracking algorithm based on Monte Carlo learning

open access: yesIET Radar, Sonar & Navigation, 2023
A well‐liked maneuvering target tracking algorithm is a variable structure multi‐model (VSMM). One of the crucial elements determining the tracking effect is the successful model set adaptation (MSA).
Han Shen‐tu   +4 more
doaj   +1 more source

Estimating rate of occurrence of rare events with empirical Bayes : a railway application [PDF]

open access: yes, 2007
Classical approaches to estimating the rate of occurrence of events perform poorly when data are few. Maximum likelihood estimators result in overly optimistic point estimates of zero for situations where there have been no events.
Bedford, Tim   +2 more
core   +1 more source

Sparse-Bayesian-learning-based translational motion estimation of electromagnetic vortex imaging

open access: yesThe Journal of Engineering, 2019
The electromagnetic (EM) vortex imaging has been found to have a great potential application prospect in the imaging radar field. However, current studies focus on the motionless target, which seriously limits its application in practice.
Rui Li   +5 more
doaj   +1 more source

Cognitive target detection based on Bayesian approach in radar

open access: yesThe Journal of Engineering, 2019
Cognitive radar (CR), which uses a closed-loop feedback perception-action cycle system, aims to develop a higher level of intelligence. In this study, the authors develop an efficient Bayesian approach to target detection in CR.
Ning Ma   +4 more
doaj   +1 more source

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