Results 31 to 40 of about 5,503 (149)

Comportamiento reproductivo del lobo marino sudamericano [PDF]

open access: yes, 2000
En la evolución de los lobos sudamericanos, son varios los factores que modelaran sus comportamientos reproductivos y las diferencias entre los sexos que podemos observar en la naturaleza.
Cappozzo, L.
core  

Enjoy the Joy of Copulas: With a Package copula

open access: yesJournal of Statistical Software, 2007
Copulas have become a popular tool in multivariate modeling successfully applied in many fields. A good open-source implementation of copulas is much needed for more practitioners to enjoy the joy of copulas.
Jun Yan
doaj  

Cópulas resultativas en inglés actual [PDF]

open access: yes, 1990
Se realiza un un análisis centrado en las construcciones copulativas cuyos verbos añaden un contenido léxico al predicado e imponen, por tanto, restricciones seleccionales sobre su atributo.
Martínez Vázquez, Montserrat
core  

Competitividade sexual pré-zigótica em Mosca-das-frutas Anastrepha Fraterculus (Wiedmann, 1830) (Diptera: Tephritidae). [PDF]

open access: yes, 2015
A mosca-das-frutas Anastrepha fraterculus é a principal praga da maçã e a técnica do inseto estéril seria uma alternativa para seu controle. O presente trabalho avaliou a competitividade sexual pré-zigótica entre três populações de A.
BARROS, C. A. de   +3 more
core  

Contagio financiero: una metodología para su evaluación mediante coeficientes de dependencia asintótica

open access: yesLecturas de Economía, 2011
Se presenta una metodología reciente para la detección del contagio financiero basada en coeficientes de dependencia asintótica. Este enfoque, sin alejarse de las condiciones teóricas del problema, logra sortear las críticas estadísticas a las que ...
Jorge Uribe
doaj  

Goodness-of-fit tests for multi-dimensional copulas: Expanding application to historical drought data

open access: yesWater Science and Engineering, 2013
The question of how to choose a copula model that best fits a given dataset is a predominant limitation of the copula approach, and the present study aims to investigate the techniques of goodness-of-fit tests for multi-dimensional copulas. A goodness-of-
Ming-wei Ma   +4 more
doaj   +1 more source

Correlaciones entre fallidos y derivados de crédito: un modelo para la valoración de CDO [PDF]

open access: yes, 2005
Este trabajo presenta un modelo factorial para el cálculo de la función de distribución de fallidos de instrumentos de deuda con riesgo, para un horizonte dado.
Peña Sánchez de Rivera, Juan Ignacio
core  

Effects of adult feeding on the reproduction and longevity of Noctuidae, Crambidae, Tortricidae and Elachistidae species [PDF]

open access: yes
This research evaluates the effect of the adult diet on the reproduction of Anticarsia gemmatalis Hübner, Heliothis virescens (Fabr.), Spodoptera frugiperda (J. E.
BERTI FILHO, Evoneo   +4 more
core   +1 more source

Interdependence of the US dollar and Food Price through Copulas

open access: yesAnuario Facultad de Ciencias Económicas y Empresariales, 2015
This paper describes the use of mating to study the relationship between the dollar (USD) US and prices for corn, soybeans, wheat and rice. Copulas with different structures and variables conditional dependence on the time dependence of the parameters ...
Mikel Ugando-Peñate   +2 more
doaj  

New results on perturbation-based copulas

open access: yesDependence Modeling, 2021
A prominent example of a perturbation of the bivariate product copula (which characterizes stochastic independence) is the parametric family of Eyraud-Farlie-Gumbel-Morgenstern copulas which allows small dependencies to be modeled.
Saminger-Platz Susanne   +4 more
doaj   +1 more source

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