ListarMAT_Articles por tema "K-function"
Mostrando ítems 1-8 de 8
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A second-order test to detect spatio-temporal anisotropic effects in point patterns
Taylor & Francis (2018)Second-order spatio-temporal orientation methods provide a natural tool for the analysis of anisotropic spatio-temporal point process data. In this paper, we generalize a method based on the spatial point pair orientation ... -
Directional analysis for point patterns on linear networks
Wiley (2020)Statistical analysis of point processes often assumes that the underlying process is isotropic in the sense that its distribution is invariant under rotation. For point processes on R2 , some tests based on the K- and ... -
First- and Second-Order Characteristics of Spatio-Temporal Point Processes on Linear Networks
American Statistical Association (2019-12-23)We present several characteristics for spatio-temporal point patterns when the spatial locations are restricted to a linear network. A nonparametric kernel-based intensity estimator is proposed to highlight the concentration ...
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Inhomogeneous K-function for germ–grain models
Elsevier (2016)In this paper, we propose the definition of the inhomogeneous K-function for germ–grain models, based on the reduced second order measure for general random sets. In general, grains in a germ–grain model can overlap, ...
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On new families of anisotropic spatial log-Gaussian Cox processes
Springer (2020)Cox processes are natural models for point process phenomena that are environmentally driven, but much less natural for phenomena driven primarily by interactions amongst the points. The class of log-Gaussian Cox processes ...
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Second-order analysis of anisotropic spatiotemporal point process data
Wiley (2015-02)Second-order orientation methods provide a natural tool for the analysis of spatial point process data. In this paper, we extend to the spatiotemporal setting the spatial point pair orientation distribution function. The ...
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Some properties of local weighted second-order statistics for spatio-temporal point processes
Springer (2020)Diagnostics of goodness-of-fit in the theory of point processes are often considered through the transformation of data into residuals as a result of a thinning or a rescaling procedure. We alternatively consider here ...
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Two-way layout factorial experiments of spatial point pattern responses in mineral flotation
Springer (2021-03-25)Factorial experiments are well-understood when the given observations are outcomes of random variables. However, when we observe spatial point patterns in each combination of factors cells, the methodology is much less ...
