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Kernel Density Estimation: a novel tool for visualising training intensity distribution in biathlon [PDF]

open access: yesFrontiers in Sports and Active Living
PurposeThis study introduces two-dimensional (2D) Kernel Density Estimation (KDE) plots as a novel tool for visualising Training Intensity Distribution (TID) in biathlon. The goal was to assess how KDE plots, alongside traditional training metrics, might
Craig A. Staunton   +7 more
doaj   +2 more sources

DEMANDE: Density Matrix Neural Density Estimation

open access: yesIEEE Access, 2023
Density estimation is a fundamental task in statistics and machine learning that aims to estimate, from a set of samples, the probability density function of the distribution that generated them.
Joseph A. Gallego-Mejia   +1 more
doaj   +1 more source

Scale and Background Aware Asymmetric Bilateral Network for Unconstrained Image Crowd Counting

open access: yesMathematics, 2022
This paper attacks the two challenging problems of image-based crowd counting, that is, scale variation and complex background. To that end, we present a novel crowd counting method, called the Scale and Background aware Asymmetric Bilateral Network ...
Gang Lv   +4 more
doaj   +1 more source

Camera trap distance sampling for terrestrial mammal population monitoring: lessons learnt from a UK case study

open access: yesRemote Sensing in Ecology and Conservation, 2022
Accurate and precise density estimates are crucial for effective species management and conservation. However, efficient monitoring of mammal densities over large spatial and temporal scales is challenging.
Samantha S. Mason   +5 more
doaj   +1 more source

BNPmix: An R Package for Bayesian Nonparametric Modeling via Pitman-Yor Mixtures

open access: yesJournal of Statistical Software, 2021
BNPmix is an R package for Bayesian nonparametric multivariate density estimation, clustering, and regression, using Pitman-Yor mixture models, a flexible and robust generalization of the popular class of Dirichlet process mixture models.
Riccardo Corradin   +2 more
doaj   +1 more source

Density Estimates as Representations of Agricultural Fields for Remote Sensing-Based Monitoring of Tillage and Vegetation Cover

open access: yesApplied Sciences, 2022
We consider the use of remote sensing for large-scale monitoring of agricultural land use, focusing on classification of tillage and vegetation cover for individual field parcels across large spatial areas.
Markku Luotamo   +2 more
doaj   +1 more source

Improved Initialization of the EM Algorithm for Mixture Model Parameter Estimation

open access: yesMathematics, 2020
A commonly used tool for estimating the parameters of a mixture model is the Expectation−Maximization (EM) algorithm, which is an iterative procedure that can serve as a maximum-likelihood estimator.
Branislav Panić   +2 more
doaj   +1 more source

Estimating snow leopard and prey populations at large spatial scales

open access: yesEcological Solutions and Evidence, 2021
Effective management of charismatic large carnivores requires robust monitoring of their population at local, regional and global scales. While enormous progress has been made to estimate carnivore populations at local scales, estimates at regional and ...
Kulbhushansingh Suryawanshi   +11 more
doaj   +1 more source

Estimating insect pest density using the physiological index of crop leaf

open access: yesFrontiers in Plant Science, 2023
Estimating population density is a fundamental study in ecology and crop pest management. The density estimation of small-scale animals, such as insects, is a challenging task due to the large quantity and low visibility. An herbivorous insect is the big
Meng Chen, Xiang-Dong Liu
doaj   +1 more source

Admissible predictive density estimation [PDF]

open access: yes, 2008
Let $X|\mu\sim N_p(\mu,v_xI)$ and $Y|\mu\sim N_p(\mu,v_yI)$ be independent $p$-dimensional multivariate normal vectors with common unknown mean $\mu$. Based on observing $X=x$, we consider the problem of estimating the true predictive density $p(y|\mu ...
Brown, Lawrence D.   +2 more
core   +3 more sources

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