Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Jim E. Griffin"'
Autor:
Adam N. Smith, Jim E. Griffin
Publikováno v:
Quantitative Marketing and Economics. 21:95-146
Estimating demand for large assortments of differentiated goods requires the specification of a demand system that is sufficiently flexible. However, flexible models are highly parameterized so estimation requires appropriate forms of regularization
Publikováno v:
Journal of Quantitative Analysis in Sports. 18:253-268
The availability of large databases of athletic performances offers the opportunity to understand age-related performance progression and to benchmark individual performance against the World’s best. We build a flexible Bayesian model of individual
Publikováno v:
Environmetrics. 33
Autor:
Jim E. Griffin, James G. Hopker, James Brookhouse, John Peters, Sergei Iljukov, Yorck Olaf Schumacher
Publikováno v:
Drug Testing and Analysis. 12:402-409
The efficient use of testing resources is crucial in the fight against doping in sports. The athlete biological passport relies on the need to identify the right athletes to test, and the right time to test them. Here we present an approach to longit
Publikováno v:
Journal of Financial Econometrics. 19:823-859
Variance estimation is central to many questions in finance and economics. Until now ex post variance estimation has been based on infill asymptotic assumptions that exploit high-frequency data. This article offers a new exact finite sample approach
Autor:
Jim E. Griffin, Mark F. J. Steel
Publikováno v:
Handbook of Bayesian Variable Selection ISBN: 9781003089018
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64443918c70dec8751308a282725b04d
https://doi.org/10.1201/9781003089018-5
https://doi.org/10.1201/9781003089018-5
Autor:
R. Cooke, Beverley Smith, Cydney Bruce, Penny Coulson, M Jill Swerdlow, Alison Butlin, Jim E. Griffin, Michael Jones, Anthony J. Swerdlow
Publikováno v:
JNCI Cancer Spectrum
BackgroundBreast cancer is rare in men, and information on its causes is very limited from studies that have generally been small. Adult obesity has been shown as a risk factor, but more detailed anthropometric relations have not been investigated.Me
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Ecological surveys risk incurring false negative and false positive detections of the target species. With indirect survey methods, such as environmental DNA, such error can occur at two stages: sample collection and laboratory analysis. Here we anal
Autor:
Jim E. Griffin
Publikováno v:
Statistics & Probability Letters. 151:36-41
This paper shows that rejection sampling with a two-piece Levy intensity envelope can outperform both the Ferguson–Klass algorithm and previously proposed envelopes for simulating realizations of completely random measures typically used in Bayesia
Autor:
Jim E. Griffin, Kitty Wan
Publikováno v:
Statistics and Computing. 31
Bayesian variable selection is an important method for discovering variables which are most useful for explaining the variation in a response. The widespread use of this method has been restricted by the challenging computational problem of sampling