Results 21 to 30 of about 761,301 (258)

Composite Goodness of Fit in Reaeration Coeffcient Modeling [PDF]

open access: yes, 2012
Determination of reaeration coefficient is an important factor in surface water quality modeling as it determines the efficiency of the Streeter-Phelps model used for predicting dissolved oxygen deficit of any stream. This study compared the efficiency
Omole, D. O.
core   +1 more source

Testing Goodness-of-Fit of Parametric Spatial Trends

open access: yesProceedings, 2018
The aim of this work is to propose and analyze the behavior of a test statistic to assess a parametric trend surface, that is, a regression model with spatially correlated errors.
Andrea Meilán-Vila   +3 more
doaj   +1 more source

Goodness of fit by Neyman-Pearson testing

open access: yesSciPost Physics
The Neyman-Pearson strategy for hypothesis testing can be employed for goodness of fit if the alternative hypothesis is selected from data by exploring a rich parametrised family of models, while controlling the impact of statistical fluctuations.
Gaia Grosso, Marco Letizia, Maurizio Pierini, Andrea Wulzer
doaj   +1 more source

Tuning goodness-of-fit tests† [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
As modern precision cosmological measurements continue to show agreement with the broad features of the standard $ $-Cold Dark Matter ($ $CDM) cosmological model, we are increasingly motivated to look for small departures from the standard model's predictions which might not be detected with standard approaches.
A Arrasmith, B Follin, E Anderes, L Knox
openaire   +2 more sources

Adaptive goodness-of-fit tests based on signed ranks [PDF]

open access: yes, 2008
Within the nonparametric regression model with unknown regression function $l$ and independent, symmetric errors, a new multiscale signed rank statistic is introduced and a conditional multiple test of the simple hypothesis $l=0$ against a nonparametric ...
Rohde, Angelika
core   +4 more sources

Goodness of fit for the Waring distribution

open access: yesStatistical Theory and Related Fields
The Waring distribution is an important two-parameter discrete distribution, commonly used in fields such as ecology, linguistics, and information science, where heavy tails are often observed. In this paper, we propose a new goodness-of-fit test for the
Yanlin Tang   +3 more
doaj   +1 more source

Wiggles and Curves: The Analysis of Ordinal Patterns

open access: yesProblemy Zarządzania, 2016
Almost all social science data are analysed with variants of the General Linear Model (GLM): regression analyses, analyses of variance, factor analyses, path analyses and the like.
Warren Thorngate, Chunyun Ma
doaj   +1 more source

Comparing Bayesian spatial models: Goodness-of-smoothing criteria for assessing under- and over-smoothing.

open access: yesPLoS ONE, 2020
BACKGROUND:Many methods of spatial smoothing have been developed, for both point data as well as areal data. In Bayesian spatial models, this is achieved by purposefully designed prior(s) or smoothing functions which smooth estimates towards a local or ...
Earl W Duncan, Kerrie L Mengersen
doaj   +1 more source

Exact goodness-of-fit testing for the Ising model

open access: yes, 2016
The Ising model is one of the simplest and most famous models of interacting systems. It was originally proposed to model ferromagnetic interactions in statistical physics and is now widely used to model spatial processes in many areas such as ecology ...
Cepeda, Sarah   +2 more
core   +1 more source

A note on goodness of fit test using moments

open access: yesStatistica, 2007
The purpose of this article is to introduce a general moment-based approach to derive formal goodness of fit tests of a parametric family. We show that, in general, an approximate normal test or a chi-squared test can be derived by exploring the moment ...
Alex Papadopoulos, Gang Li
doaj   +1 more source

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