Results 21 to 30 of about 24,702 (281)

Signaler-Receiver “Exchangeability” Promotes Information Exchange in Animal Communication [PDF]

Animal Behavior and Cognition
Signals that inform prospective receivers of potential contingencies associated with the signaler or its environment may be innate, or may rely upon repeated association between signal production and a context relevant to the receiver, or theory of mind,
Gabriel Francescoli, James F. Hare
doaj   +1 more source

The de Finetti structure behind some norm-symmetric multivariate densities with exponential decay

Dependence Modeling, 2020
We derive a sufficient condition on the symmetric norm ||·|| such that the probability distribution associated with the density function f (x) ∝exp(−λ ||x||) is conditionally independent and identically distributed in the sense of de Finetti’s seminal ...
Mai Jan-Frederik
doaj   +1 more source

A link between Kendall’s τ, the length measure and the surface of bivariate copulas, and a consequence to copulas with self-similar support

Dependence Modeling, 2023
Working with shuffles, we establish a close link between Kendall’s τ\tau , the so-called length measure, and the surface area of bivariate copulas and derive some consequences.
Sánchez Juan Fernández, Trutschnig Wolfgang   +1 more
doaj   +1 more source

A method for the elicitation of copulas

4 open, 2023
In this paper, we introduce a method to construct copulas. The method is based on combining the partial derivatives of two copulas. We prove that the proposed method provides a copula.
González-López Verónica Andrea, Litvinoff Justus Vinícius   +1 more
doaj   +1 more source

Exchangeability and Bayesian Inference: A Theoretical and Computational Framework for Reliable Experimental Data Analysis

Information
Exchangeability is a foundational concept in Bayesian statistics, crucial for ensuring the validity and generalizability of inferences from experimental data.
Tommaso Costa, Mario Ferraro
doaj   +1 more source

The exchangeability of shape

BMC Research Notes, 2010
Background Landmark based geometric morphometrics (GM) allows the quantitative comparison of organismal shapes. When applied to systematics, it is able to score shape changes which often are undetectable by traditional morphological studies and even by ...
Kaba Dramane, Dujardin Jean-Pierre AL, Henry Amy B   +2 more
doaj   +1 more source

Decision-theoretic foundations for statistical causality

Journal of Causal Inference, 2021
We develop a mathematical and interpretative foundation for the enterprise of decision-theoretic (DT) statistical causality, which is a straightforward way of representing and addressing causal questions.
Dawid Philip
doaj   +1 more source

How Vertex reinforced jump process arises naturally [PDF]

, 2015
We prove that the only nearest neighbor jump process with local dependence on the occupation times satisfying the partial exchangeability property is the vertex reinforced jump process, under some technical conditions.
Zeng, Xiaolin
core   +2 more sources

Constrained exchangeable partitions [PDF]

Discrete Mathematics & Theoretical Computer Science, 2006
For a class of random partitions of an infinite set a de Finetti-type representation is derived, and in one special case a central limit theorem for the number of blocks is shown.
Alexander Gnedin
doaj   +1 more source

A de Finetti Representation Theorem for Quantum Process Tomography

, 2003
In quantum process tomography, it is possible to express the experimenter's prior information as a sequence of quantum operations, i.e., trace-preserving completely positive maps.
Christopher A. Fuchs, E. Regazzini, G. G. Emch, M. A. Nielsen, Petra F. Scudo, R. L. Hudson, Rüdiger Schack   +6 more
core   +1 more source