Stochastic smoothing of point processes for wildlife-vehicle collisions on road networks (Epub ahead of print)
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Títol
Stochastic smoothing of point processes for wildlife-vehicle collisions on road networks (Epub ahead of print)Data de publicació
2021-09-04Editor
SpringerISSN
1436-3240; 1436-3259Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://link.springer.com/content/pdf/10.1007/s00477-021-02072-3.pdfVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
Wildlife-vehicle collisions on road networks represent a natural problem between human populations and the environment, that affects wildlife management and raise a risk to the life and safety of car drivers. We propose ... [+]
Wildlife-vehicle collisions on road networks represent a natural problem between human populations and the environment, that affects wildlife management and raise a risk to the life and safety of car drivers. We propose a statistically principled method for kernel smoothing of point pattern data on a linear network when the first-order intensity depends on covariates. In particular, we present a consistent kernel estimator for the first-order intensity function that uses a convenient relationship between the intensity and the density of events location over the network, which also exploits the theoretical relationship between the original point process on the network and its transformed process through the covariate. We derive the asymptotic bias and variance of the estimator, and adapt some data-driven bandwidth selectors to estimate the optimal bandwidth. The performance of the estimator is analysed through a simulation study under inhomogeneous scenarios. We present a real data analysis on wildlife-vehicle collisions in a region of North-East of Spain. [-]
Publicat a
Stochastic Environmental Research and Risk Assessment, 2021Codi del projecte o subvenció
MTM-2016-78917-R | UJI-B2018-04
Títol del projecte o subvenció
Nuevas familias de procesos estocásticos espacio-temporales que unifican geoestadística y patrones puntuales, modelización, estimación, predicción sobre networks y trayectoria | Procesos puntuales espaciales y espacio-temporales sobre redes. Características de segundo orden y modelos probabilísticos
Drets d'accés
info:eu-repo/semantics/openAccess
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