Results 71 to 80 of about 1,706,582 (168)

One-Component Regular Variation and Graphical Modeling of Extremes

open access: yes, 2015
The problem of inferring the distribution of a random vector given that its norm is large requires modeling a homogeneous limiting density. We suggest an approach based on graphical models which is suitable for high-dimensional vectors.
Evans, Robin, Hitz, Adrien
core  

Generation and Detection of Multivariate Regular Variation and Hidden Regular Variation

open access: yes, 2014
We review definitions of multivariate regular variation (MRV) and hidden regular variation (HRV) for distributions of random vectors and then summarize methods for generating models exhibiting both properties. We also discuss diagnostic techniques that detect these properties in multivariate data and indicate when models exhibiting both MRV and HRV are
Das, Bikramjit, Resnick, Sidney
openaire   +2 more sources

Regular variation without limits

open access: yesJournal of Mathematical Analysis and Applications, 2010
A positive and measurable function \(f\) is regularly varying with real index \( \alpha \) if it satisfies (1) \(f(tx)/f(t)\rightarrow x^{\alpha }\), as \( t\rightarrow \infty \), for all \(x>0\). It is well-known that (1) holds locally uniformly in \(x>0\).
Bingham, N.H., Ostaszewski, A.J.
openaire   +1 more source

Unbiased Tail Estimation by an Extension of the Generalized Pareto Distribution [PDF]

open access: yes
AMS classifications: 62G20; 62G32;bias;exchange rate;heavy tails;peaks-over-threshold;regular variation;tail ...
Beirlant, J., Joossens, E., Segers, J.
core   +1 more source

Acute effects of electronic cigarette smoking on heart rate variability

open access: yesStudia Universitatis Babeș-Bolyai. Biologia, 2017
Heart rate variability (HRV) refers to a temporal variation between consecutive heart beats and is considered a measure of the balance between the sympathetic and the parasympathetic nervous system.
Ștefan-Claudiu MIRESCU   +4 more
doaj   +1 more source

Lower Tail Dependence for Archimedean Copulas: Characterizations and Pitfalls [PDF]

open access: yes
Tail dependence copulas provide a natural perspective from which one can study the dependence in the tail of a multivariate distribution.For Archimedean copulas with continuously differentiable generators, regular variation of the generator near the ...
Charpentier, A., Segers, J.J.J.
core   +1 more source

Regular Variation and Raabe

open access: yes, 2018
There are many tests for determining the convergence or divergence of series. The test of Raabe and the test of Betrand are relatively unknown and do not appear in most classical courses of analysis. Also, the link between these tests and regular variation is seldomly made. In this paper we offer a unified approach to some of the classical tests from a
Hammond, Christopher N. B., Omey, Edward
openaire   +2 more sources

Classification of Conceptual Variation of Terms Based on the Semantic Discursive Modulation

open access: yesIkala: Revista de Lenguaje y Cultura, 2011
This paper describes a proposal to classify the conceptual variation of terms represented by regular and irregular polysemic processes to which terms as lexical units are subjected in discourse.
Irina Kostina
doaj  

Anatomical variation of the superficial branch of the radial nerve and brachioradialis tendon: a case report with embryological and clinical insights [PDF]

open access: yesFolia Medica
Anatomical variation of the peripheral nerves are important because they may have therapeutic implications. The variation of the brachioradialis muscle (BRM) and the superficial branch of the radial nerve (SBRN) was noted during a regular teaching ...
Anand Verma   +3 more
doaj   +3 more sources

Home - About - Disclaimer - Privacy