Results 251 to 260 of about 10,510,029 (299)
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Dispersion of Responses Over Cells
Journal of Educational and Behavioral Statistics, 2000The usual requirement for testing hypotheses regarding the dispersion of responses distributed over taxa uses a Pearson's goodness of fit chi-square. More recently maximum likelihood statistics have also come into vogue. Standard recommendations for either technique is to have at least five observations expected under each taxon.
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Analysis of Proportions in the Presence of over-/under-Dispersion
Biometrics, 1995Summary: Procedures for testing homogeneity of proportions, in the presence of over-dispersion or under-dispersion, occurring in several groups in toxicology (teratology or mutagenicity) or other similar fields, are developed. We consider \(C(\alpha)\) or score type tests based on a parametric model, namely, the extended beta-binomial model and two ...
Paul, Sudhir R., Islam, Ali S.
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Modeling Over-Dispersion for Network Data Clustering
2017 16th IEEE International Conference on Machine Learning and Applications (ICMLA), 2017Over-dispersed network data mining has emerged as a central theme in data science, evident by a sharp increase in the volume of real-world network data with imbalanced clusters.While most of existing clustering methods are designed for discovering the number of clusters and class specific connectivity patterns, few methods are available to uncover the ...
Lu Wang 0004 +3 more
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On the Analysis of Over-Dispersed Categorical Data
2021In Chaps. 7 and 8, our focus has been on describing some of the technical aspects of reciprocal averaging (and canonical correlation analysis), so that one can obtain row and column scores that maximize the association between the variables of a two-way contingency table. The foundations under which, such discussions are laid, rests upon the assumption
Shizuhiko Nishisato +3 more
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The over-dispersion between cells of chromosomal aberrations
Journal of Theoretical Biology, 1979Abstract A survey of the literature suggests that random dispersion of radiation induced aberrations occurs only when uniform fields of predominantly low LET radiations act on cell populations which are homogeneous with regard to cell type, cycle stage and intrinsic radiosensitivity.
D, Couzin, D G, Papworth
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Longshore dispersion over a flat beach
Journal of Geophysical Research: Oceans, 1982We model the longshore dispersion of a passive, conservative pollutant in the surf zone formed by two‐dimensional, monochromatic water waves of near‐normal incidence breaking over a plane, flat, impermeable beach under presumedly uniform temporal, vertical, and longshore conditions. Such pollutants disperse in a Fickian manner through a plane moving at
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An extension of an over-dispersion test for count data
Computational Statistics & Data Analysis, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M. Fazil Baksh +2 more
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PARTICLE DISPERSION IN FLOWS OVER ROUGH SURFACES
Proceeding of Eighth International Symposium on Turbulence and Shear Flow Phenomena, 2013The dispersion of particles in turbulent flows is a very common, yet not fully understood problem. In this work we deal with a fully developed turbulent channel flow, at Reτ = 180. The influence of wall roughness on the velocity field and on the particle dispersion is analysed.
D. Sassun +3 more
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2000
Although by the early 1830s the wave theory of light had demonstrated its superior explanatory power in accounting for many optical phenomena, it was not without obstacle. The phenomenon of dispersion (light of different colors suffering different degrees of refraction in a prism) was still problematic for the wave theory.
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Although by the early 1830s the wave theory of light had demonstrated its superior explanatory power in accounting for many optical phenomena, it was not without obstacle. The phenomenon of dispersion (light of different colors suffering different degrees of refraction in a prism) was still problematic for the wave theory.
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Confidence Interval of a Proportion with Over-dispersion
Biometrical Journal, 2002A new approach that extends the classical Clopper-Pearson procedure is proposed for the estimation of the (1–α)% confidence interval of a proportion with over-dispersion. Over-dispersion occurs when a proportion of interest shows more variation (variance inflation) than predicted by the binomial distribution. There are two steps in the approach. The
Cong Chen, Robert W. Tipping
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