Results 41 to 50 of about 5,967,034 (302)
On Crowd Density Estimation for Surveillance
, 2006 The goal of this work is to use computer vision to measure crowd density in outdoor scenes. Crowd density estimation is an important task in crowd monitoring. The assessment is carried out using images of a graduation scene which illustrated variation of
Rahmalan, Hidayah +5 more
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Stepwise fuzzy correction of the algorithm filters of random signals
Системный анализ и прикладная информатика, 2019 The task of estimating the information contained in random signals from various sources – meters. It is assumed that the gauges are discrete and are described, like the original process assessed, by a discrete mathematical model in the form of difference
A. A. Lobaty, A. S. Radkevich
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Unscented Auxiliary Particle Filter Implementation of the Cardinalized Probability Hypothesis Density Filters [PDF]
AUT Journal of Electrical Engineering, 2017 The probability hypothesis density (PHD) filter suffers from lack of precise estimation of the expected number of targets. The Cardinalized PHD (CPHD) recursion, as a generalization of the PHD recursion, remedies this flaw and simultaneously propagates ...
M. R. Danaee, F. Behnia
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Estimation of the transition density of a Markov chain
Annales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2014 We present two data-driven procedures to estimate the transition density of an homogeneous Markov chain. The first yields to a piecewise constant estimator on a suitable random partition. By using an Hellinger-type loss, we establish non-asymptotic risk bounds for our estimator when the square root of the transition density belongs to possibly ...
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Transition density estimates for relativistic alpha-stable processes on metric spaces [PDF]
Probability and Mathematical Statistics, 2020 Summary: We prove matching upper and lower bounds for the transition density of relativistic \(\alpha\)-stable processes on a \(d\)-set \((F,\rho,\mu)\), obtained via subordination. We also identify the corresponding Dirichlet form.
Pietruska-Pałuba, Katarzyna +1 more
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Gradient estimates of harmonic functions and transition densities for Lévy processes
Transactions of the American Mathematical Society, 2015 We prove gradient estimates for harmonic functions with respect to a d d -dimensional unimodal pure-jump Lévy process under
Kulczycki, Tadeusz, Ryznar, Michał
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A γ-power stochastic Lundqvist-Korf diffusion process: Computational aspects and simulation
Moroccan Journal of Pure and Applied Analysis, 2022 In this paper, we introduce a new family of stochastic Lundqvist-Korf diffusion process, defined from a g-power of the Lundqvist-Korf diffusion process. First, we determine the probabilistic characteristics of the process, such as its analytic expression,
Abdenbi El Azri, Ahmed Nafidi
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Estimates on the Transition Densities of Girsanov Transforms of Symmetric Stable Processes [PDF]
Journal of Theoretical Probability, 2006 For a Brownian motion \(X_t\) on \(\mathbb R^d\), the transition density of the process \(\widetilde{X}\) obtained from \(X\) by a Girsanov transformation using a natural function has Gaussian estimates. For the symmetric stable processes, the similar problem is considered.
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The PSK Channel Capacity Estimation under Dynamic Plasma Sheath Channel
International Journal of Antennas and Propagation, 2020 During the reentry process, the plasma sheath covering the surface of the hypersonic aircraft will cause the amplitude attenuation and phase jitter of the communication electromagnetic waves.
Min Yang +4 more
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Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari +5 more
wiley +1 more source