copula

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linking verb

Linking verbs (also known as copulas or copular verbs) are used to describe the state of being of the subject of a clause. Unlike action verbs (also called dynamic verbs), they connect the subject to the predicate of the clause without expressing any action.
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copula

Logic the often unexpressed link between the subject and predicate terms of a categorial proposition, as are in all men are mortal

Copula

 

an auxiliary grammatical element of a compound predicate having a weakened lexical meaning and serving to express merely grammatical categories of the predicate, the lexical meaning being expressed by a nonconjugated, usually nominal, element. The verb “to be” is used as a copula in many languages. The presence of a copula may be obligatory, as in English and French; optional, as in Russian and Hungarian; determined by the type of nominal predicate, as in Swahili; or determined by the semantic character of the sentence, as in Khmer. Certain verbs besides “to be” can function as copulas; these verbs, which introduce an additional nuance to the meaning of the elements linked by the verb, include the Russian nachinat’ (“to begin”), stanovit’sia (“to become”), and delat’ (“to do,” “to make”).

References in periodicals archive ?
Valdez, 1998, Understanding Relationships Using Copulas, North American Actuarial Journal, 2(1): 1-25.
Alternatively, a copula C between F and G can be used as a function such that C(F(x), G(x)) = H(u,v).
The dependence structure of forecast error among different wind farms can be constructed more precisely by using pair-copula method than those by using multivariate copulas, and the enhancement is nontrivial in PLF computation.
In the next section, we propose a method based on Copula theory to model the unknown dependence in order to derive the joint probability density.
Hochrainer-Stigler, "Assessing water resource system vulnerability to unprecedented hydrological drought using copulas to characterize drought duration and deficit," Water Resources Research, vol.
Among the tools that measure statistical dependency at signal level investigated in [31] (e.g., Pearson's product-moment correlation that measures linear relationship, Spearman's correlation that measures the monotonic relationships, and Kendall's correlation that reflects the number of concordances and discordances in time series, as well as the classical correlation) we opted to use copula, and among the numerous copula families we opted for the Frank copula, since it was shown to be well suited to cardiovascular time series [31]; it distinguishes comonotonic and counter-monotonic behavior in bivariate signals.
A CPA bipartite clause can also occur when the Greek copula is left untranslated.
From the viewpoint of selecting fastest-to-compute copulas, we should select polynomial copulas and, among them, copulas of the smallest possible degree.
This study explores the possibility of a combination of existing bivariate Archimedean copulas performing better or just as well as the individual copulas.
Nelsen, An Introduction to Copulas, Springer, New York, NY, USA, 2nd edition, 2006.
La frecuencia relativa de copulas (FRC) se determino mediante la siguiente relacion: FRC = (C/(N/2))*100, donde C es el numero de copulas contadas y N es el numero de individuos adultos contados en cada transecto de la estacion de muestreo (modificado de Cala, de Jesus-Navarrete, Ocana, & Oliva-Rivera, 2013).