نتایج جستجو برای: finite exchangeability

تعداد نتایج: 258627  

Journal: :Experimental Cell Research 2021

The mechanism that mediates the interaction between contractile ring and plasma membrane during cytokinesis remains elusive. We previously found ERM (Ezrin/Radixin/Moesin) proteins, which usually mediate cellular pole contraction, become over-accumulated at cell equator support furrow ingression upon loss of other actin-membrane associated anillin supervillin. In this study, we addressed molecu...

Journal: :The American journal of physiology 1959
E M RENKIN

RENKIN, EUGENE M. Exchangeability of tissue potassium in skeletal muscle. Am. J. Physiol. 1g7(6): I~II-12 15. I g5g.-The quantity of ‘rapidly exchanging’ Kf in isolated, skeletal muscles of dogs was determined by measuring the back-diffusion of K42 during perfusion with blood containing this isotopic tracer. This quantity was not constant, but varied from da/$ to 88y0 of the total tissue K+. Th...

2016
Moontae Lee Seok Hyun Jin David M. Mimno

Many online communities present user-contributed responses such as reviews of products and answers to questions. User-provided helpfulness votes can highlight the most useful responses, but voting is a social process that can gain momentum based on the popularity of responses and the polarity of existing votes. We propose the Chinese Voting Process (CVP) which models the evolution of helpfulnes...

2010
Larry G. Epstein Kyoungwon Seo

The de Finetti Theorem on exchangeability is generalized to a framework where beliefs are represented by belief functions. This is done while extending the scope of the bridge provided by de Finetti between subjectivist and frequentist approaches. The model is shown to accommodate ambiguity about how experiments are “correlated.”

Journal: :Epidemiologic Perspectives & Innovations : EP+I 2009
George Maldonado

We are pleased to publish an update to "Identifiabiliity, exchangeability and epidemiological confounding" (IEEC) by Sander Greenland and James Robins, originally published in 1986 in the International Journal of Epidemiology. This is the first in a series of updates to classic epidemiologic-methods papers that EP&I has commissioned.

Journal: :Kybernetika 2009
Fabrizio Durante Pier Luigi Papini

The class of componentwise concave copulas is considered, with particular emphasis on its closure under some constructions of copulas (e. g., ordinal sum) and its relations with other classes of copulas characterized by some notions of concavity and/or convexity. Then, a sharp upper bound is given for the L ∞-measure of non-exchangeability for copulas belonging to this class.

Journal: :Journal of statistical theory and practice 2022

Abstract Building on a new but simple method to characterize multivariate Bernoulli variables with given means, we investigate their dependence structure. We evaluate some computational examples whether the assumption of exchangeability is binding. This useful in applications where standard assumption, such as credit risk.

2006
THOMAS M. LIGGETT JEFFREY E. STEIF

2007
Gert de Cooman Enrique Miranda

We consider immediate predictive inference, where a subject, using a number of observations of a finite number of exchangeable random variables, is asked to coherently model his beliefs about the next observation, in terms of a predictive lower prevision. We study when such predictive lower previsions are representation insensitive, meaning that they are essentially independent of the choice of...

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