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Functional archetype and archetypoid analysis
(Elsevier, 2016-12)
Archetype and archetypoid analysis can be extended to functional data. Each function is approximated by a convex combination of actual observations (functional archetypoids) or functional archetypes, which are a convex ...
Spatio-temporal hierarchical Bayesian analysis of wildfires with Stochastic Partial Differential Equations. A case study from Valencian Community (Spain)
(Taylor & Francis, 2019-09-04)
The spatio-temporal study of wildfires has two complex elements that are the computational efficiency and longtime processing. Modelling the spatial variability of a wildfire could be performed in different ways, and an ...
Conditions for Sylow 2-subgroups of the Fixed Point Subgroup Implying Solubility
(Cambridge University Press, 2018)
Let A and G be finite groups and suppose that A acts via automorphisms
on G with (|A|, |G|) = 1. We study how certain conditions on the
Sylow 2-subgroups of the fixed point subgroup of the action, CG(A), may
imply the ...
Phase portraits of Abel quadratic differential systems of the second kind
(Taylor & Francis, 2018)
We provide normal forms and the global phase portraits on the Poincaré
disk of some Abel quadratic differential equations of the second kind. Moreover, we also
provide the bifurcation diagrams for these global phase portraits.
Analysis of precise climate pattern of Maldives. A complex island structure
(Elsevier, 2021-04-18)
Republic of Maldives is located on the south and south-western region of the coast of India. The
country is one of the most geographically dispersed nations in the world, with 1192 coral islands
grouped into 26 natural ...
A Data Science Analysis of Academic Staff Workload Profiles in Spanish Universities: Gender Gap Laid Bare
(MDPI, 2021-06-25)
This paper presents a snapshot of the distribution of time that Spanish academic staff spend on different tasks. We carry out a statistical exploratory study by analyzing the responses provided in a survey of 703 Spanish ...
Archetypal shapes based on landmarks and extension to handle missing data
(Springer Verlag, 2017-10)
Archetype and archetypoid analysis are extended to shapes. The objective is to find representative shapes. Archetypal shapes are pure (extreme) shapes. We focus on the case where the shape of an object is represented by a ...
Maximal regularity in l(p) spaces for discrete time fractional shifted equations
(Elsevier, 2017-09)
In
this
paper,
we
are
presenting
a
new
method
based
on
operator-valued
Fourier
multipliers
to
characterize
the
existence
and
uniqueness
of
p
-solutions
for
discrete
time
fractional
models
i ...
Hilbert series of modules over positively graded polynomial rings
(Elsevier, 2016-08)
In this note, we give examples of formal power series satisfying certain conditions that cannot be realized as Hilbert series of finitely generated modules. This answers to the negative a question raised in a recent article ...
Combining Classification and User-Based Collaborative Filtering for Matching Footwear Size
(MDPI, 2021)
Size mismatch is a serious problem in online footwear purchase because size mismatch
implies an almost sure return. Not only foot measurements are important in selecting a size, but also
user preference. This is the ...