Results 21 to 30 of about 7,683 (263)

The grammaticalisation of a copula in vernacular Arabic

open access: yesGlossa, 2019
It is standardly assumed that Arabic copula constructions with present tense interpretation involve either a null copula or a pronominal copula.
Louisa Sadler, Maris Camilleri
doaj   +2 more sources

The BALM Copula [PDF]

open access: yesInternational Journal of Stochastic Analysis, 2013
The class of probability distributions possessing the almost-lack-of-memory property appeared about 20 years ago. It reasonably took place in research and modeling, due to its suitability to represent uncertainty in periodic random environment. Multivariate version of the almost-lack-of-memory property is less known, but it is not less interesting.
Boyan Dimitrov, Nikolai Kolev
openaire   +2 more sources

A new mixture copula model for spatially correlated multiple variables with an environmental application

open access: yesScientific Reports, 2022
In environmental monitoring, multiple spatial variables are often sampled at a geographical location that can depend on each other in complex ways, such as non-linear and non-Gaussian spatial dependence.
Mohomed Abraj   +2 more
doaj   +1 more source

Perbandingan Analisis Regresi Linear dengan Analisis Regresi Copula pada Data Keuangan

open access: yesJambura Journal of Mathematics, 2022
Regression analysis is a statistical analysis to predict or explain the relationship between the response variable and one or more explanatory variables. The simplest and most commonly used regression analysis is linear regression.
Alfi Khairiati   +2 more
doaj   +1 more source

Gluing Copulas [PDF]

open access: yesCommunications in Statistics - Theory and Methods, 2008
We present a new way of constructing n-copulas, by scaling and gluing finitely many n-copulas. Gluing for bivariate copulas produces a copula that coincides with the independence copula on some grid of horizontal and vertical sections. Examples illustrate how gluing can be applied to build complicated copulas from simple ones.
Siburg, Karl Friedrich   +1 more
openaire   +4 more sources

Copula-based drought severity-area-frequency curve and its uncertainty, a case study of Heihe River basin, China

open access: yesHydrology Research, 2020
Copulas are appropriate tools in drought frequency analysis. However, uncertainties originating from copulas in such frequency analysis have not received significant consideration. This study aims to develop a drought severity-areal extent-frequency (SAF)
Zhanling Li   +3 more
doaj   +1 more source

A Novel Nonparametric Estimation for Conditional Copula Functions Based on Bayes Theorem

open access: yesIEEE Access, 2019
Conditional copula which measures the conditional dependence among variables, possesses a special position in copula field. In this article, based on Bayes theorem, we derive three kinds of conditional copula functions as the product of the corresponding
Xinyao Li, Weihong Zhang, Liangli He
doaj   +1 more source

Snow-melt flood frequency analysis by means of copula based 2D probability distributions for the Narew River in Poland

open access: yesJournal of Hydrology: Regional Studies, 2016
Study region: Narew River in Northeastern Poland. Study focus: Three methods for frequency analysis of snowmelt floods were compared. Two dimensional (2D) normal distribution and copula-based 2D probability distributions were applied to statistically ...
Bogdan Ozga-Zielinski   +4 more
doaj   +1 more source

Prediksi Ukuran Risiko Agregat Klaim Berbasis Copula pada Model Autoregressive Conditional Amount (ACA)

open access: yesJurnal Matematika Integratif, 2020
Industri asuransi merupakan industri yang berkaitan langsung dengan risiko. Risiko yang terjadi diakibatkan oleh besar klaim yang harus dibayarkan perusahaan asuransi.
Dedy Irawan Prihandoko   +1 more
doaj   +1 more source

Flood routing via a copula-based approach

open access: yesHydrology Research, 2021
Floods are among the most common natural disasters that if not controlled may cause severe damage and high costs. Flood control and management can be done using structural measures that should be designed based on the flood design studies. The simulation
Mohammad Nazeri Tahroudi   +3 more
doaj   +1 more source

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