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The influence of environment on bacterial co-abundance in the gut microbiomes of healthy human individuals. [PDF]
Commun BiolBoetto C +12 more
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Macroeconomic Dynamics, 2002
If one drops the strong assumption that firms and households know all of the relevant parameters, and instead models agents as learning these parameters, the estimated parameters become random variables. Taking expectations several periods into the future may then involve taking the expectation of a product of random variables.
Moore, Bartholomew, Schaller, Huntley
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If one drops the strong assumption that firms and households know all of the relevant parameters, and instead models agents as learning these parameters, the estimated parameters become random variables. Taking expectations several periods into the future may then involve taking the expectation of a product of random variables.
Moore, Bartholomew, Schaller, Huntley
openaire +1 more source
Outlyingness Weighted Covariation
SSRN Electronic Journal, 2008Quadratic covariation is a popular descriptive measure for the volatility of a multivariate price process. It is consistently estimated by the sum of outer products of high-frequency returns. The proposed realized outlyingness weighted covariation (ROWCov) is a weighted sum of outer products of high-frequency returns and downweights returns that ...
Boudt, Kris +2 more
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Covariate-free and Covariate-dependent Reliability
Psychometrika, 2016Classical test theory reliability coefficients are said to be population specific. Reliability generalization, a meta-analysis method, is the main procedure for evaluating the stability of reliability coefficients across populations. A new approach is developed to evaluate the degree of invariance of reliability coefficients to population ...
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Covariant Schr dinger operator
Journal of Physics A: Mathematical and General, 2002Summary: We analyse the Schrödinger operator for a quantum scalar particle in a curved spacetime which is fibred over absolute time and is equipped with given spacelike metric, gravitational field and electromagnetic field. We approach the Schrödinger operator in three independent ways: in terms of covariant differentials induced by the quantum ...
MODUGNO, MARCO, J. JANYSKA
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