Listar MAT_Articles por idioma "eng"
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A possible reference to the solar corona in a contemporary report of the AD1239 eclipse
SAGE Publications (2022-10-18)The codex kept at the Arnamagnean Institute, in Copenhagen, with the number 805 4º (København, Det Arnamagnaeanske Institut, Københavns Universitet, AM 805 4º), contains a combination of texts featuring legal and short ... -
A review of spatiotemporal models for count data in R packages. A case study of COVID-19 data
MDPI (2021-07-01)Spatiotemporal models for count data are required in a wide range of scientific fields, and they have become particularly crucial today because of their ability to analyze COVID-19- related data. The main objective of this ... -
A Review of the Dall'Olmo Survey of Meteors, Meteor Showers and Meteorites in the Middle Ages from Medieval European Sources
Sage (2017-02)It is a long time since the last comprehensive compilation of meteoric observations from medieval European sources was published. Since then, the advances in information technology, search engines and, above all, the ... -
A second order approach to analyse spatial point patterns with functional marks
Springer (2011-11)A new second order statistic based on the mark correlation function to analyse spatial point patterns with functional marks is presented. An edge corrected estimator is defined and illustrated through a ... -
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 ... -
A semiparametric spatiotemporal Hawkes-type point process model with periodic background for crime data
Wiley (2018-12)Past studies have shown that crime events are often clustered. This study proposes a spatiotemporal Hawkes-type point process model, which includes a background component with daily and weekly periodization, and a ... -
A simple two-step method for spatio-temporal design-based balanced sampling
Springer Berlin Heidelberg (2017)We introduce a two-step method to perform spatio-temporal balanced sampling in a design-based approach. For populations with spatio-temporal trends and with anisotropic effects in the variable of interest, the prediction ... -
A spatial functional count model for heterogeneity analysis in time
Springer (2021)A spatial curve dynamical model framework is adopted for functional prediction of counts in a spatiotemporal log-Gaussian Cox process model. Our spatial functional estimation approach handles both wavelet-based heterogeneity ... -
A spatial pattern analysis of the halophytic species distribution in an arid coastal environment
Springer Verlag (2015)Obtaining information about the spatial distribution of desert plants is considered as a serious challenge for ecologists and environmental modeling due to the required intensive field work and infrastructures in harsh and ... -
A spatial randomness test based on the box-counting dimension
Springer (2022)Statistical modelling of a spatial point pattern often begins by testing the hypothesis of spatial randomness. Classical tests are based on quadrat counts and distance-based methods. Alternatively, we propose a new statistical ... -
A Spatially Correlated Model with Generalized Autoregressive Conditionally Heteroskedastic Structure for Counts of Crimes
MDPI (2022-06-29)Crime is a negative phenomenon that affects the daily life of the population and its development. When modeling crime data, assumptions on either the spatial or the temporal relationship between observations are necessary ... -
A spatio-temporal multinomial model of firearm death in Ecuador
Elsevier (2023)This paper presents a statistical model based on a multinomial distribution with fixed and random effects, the latter effects being structured and non-structured in space and time. Inference is performed through a Bayesian ... -
A stochastic Bayesian bootstrapping model for COVID-19 data
Springer (2022-01-11)We provide a stochastic modeling framework for the incidence of COVID-19 in Castilla-Leon (Spain) for the period March 1, 2020 to February 12, 2021, which encompasses four waves. Each wave is appropriately described by a ... -
A Study about the Integration of the Elliptical Orbital Motion Based on a Special One-Parametric Family of Anomalies
Hindawi Publishing Corporation (2014-02-24)This paper aimed to address the study of a new family of anomalies, called natural anomalies, defined as a one-parameter convex linear combination of the true and secondary anomalies, measured from the primary and the ... -
A Survey of Meteoric Activity over Spain during the Eighth–Fifteenth Centuries
SAGE Publications (2016)The lack of astronomical observations from Medieval and early Modern Spanish sourcesis a constant in the records of solar eclipses, meteors and other celestial phenomena. This may be partially explained by the absence of ... -
A survey on consumers’ attitude towards storing and end of life strategies of small information and communication technology devices in Spain
Elsevier (2017)This study analyses the current habits and practices towards the store, repair and second-hand purchase of small electrical and electronic devices belonging to the category of information and communication technology (ICT). ... -
A Teaching proposal for the study of eigenvectors and eigenvalues
Omnia Science (2017)In this work, we present a teaching proposal which emphasizes on visualization and physical applications in the study of eigenvectors and eigenvalues. These concepts are introduced using the notion of the moment of inertia ... -
A third order partial differential equation for isotropic boundary based triangular Bézier surface generation
Elsevier (2011-08-15)We approach surface design by solving a linear third order Partial Differential Equation (PDE). We present an explicit polynomial solution method for triangular Bézier PDE surface generation characterized by a boundary ... -
A Unifying Framework for Perturbative Exponential Factorizations
MDPI (2021-03-17)We propose a framework where Fer and Wilcox expansions for the solution of differential equations are derived from two particular choices for the initial transformation that seeds the product expansion. In this scheme, ... -
A version of the Stone-Weierstrass theorem in fuzzy analysis
International Scientific Research Publications (ISRP) (2017-08)Let C ( K , E 1 ) be the space of continuous functions defined between a compact Hausdorff space K and the space of fuzzy numbers E 1 endowed with the supremum metric. We provide a set of sufficient conditions ...