Results 21 to 30 of about 349,134 (285)

Quantum Chi-Squared and Goodness of Fit Testing [PDF]

open access: yes, 2014
The density matrix in quantum mechanics parameterizes the statistical properties of the system under observation, just like a classical probability distribution does for classical systems. The expectation value of observables cannot be measured directly,
Bahadur R. R.   +10 more
core   +4 more sources

Assessing Goodness of Fit for Verifying Probabilistic Forecasts

open access: yesForecasting, 2021
The verification of probabilistic forecasts in hydro-climatology is integral to their development, use, and adoption. We propose here a means of utilizing goodness of fit measures for verifying the reliability of probabilistic forecasts.
Tae-Ho Kang   +2 more
doaj   +1 more source

vsgoftest: An R Package for Goodness-of-Fit Testing Based on Kullback-Leibler Divergence

open access: yesJournal of Statistical Software, 2020
The R package vsgoftest performs goodness-of-fit (GOF) tests, based on Shannon entropy and Kullback-Leibler divergence, developed by Vasicek (1976) and Song (2002), of various classical families of distributions. The so-called Vasicek-Song (VS) tests are
Justine Lequesne, Philippe Regnault
doaj   +1 more source

Efficient algorithm for testing goodness-of-fit for classification of high dimensional data

open access: yesLietuvos Matematikos Rinkinys, 2009
Let us have a sample satisfying d-dimensional Gaussian mixture model (d is supposed to be large). The problem of classification of the sample is considered. Because of large dimension it is natural to project the sample to k-dimensional (k = 1,  2, . . .)
Gintautas Jakimauskas
doaj   +1 more source

Development of an Informal Test for the Fit of a Probability Distribution Model for Teaching

open access: yesJournal of Statistics Education, 2020
Informally testing the fit of a probability distribution model is educationally a desirable precursor to formal methods for senior secondary school students. Limited research on how to teach such an informal approach, lack of statistically sound criteria
Anna Fergusson, Maxine Pfannkuch
doaj   +1 more source

Universal Codes as a Basis for Time Series Testing [PDF]

open access: yes, 2005
We suggest a new approach to hypothesis testing for ergodic and stationary processes. In contrast to standard methods, the suggested approach gives a possibility to make tests, based on any lossless data compression method even if the distribution law of
Astola, Jaakko, Ryabko, Boris
core   +2 more sources

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

An Alternative Model for Describing the Reliability Data: Applications, Assessment, and Goodness-of-Fit Validation Testing

open access: yesMathematics, 2023
We provide a new extension of the exponential distribution with an emphasis on the practical elements of the model. Six different classical estimation methods were applied and compared. The main test was evaluated on complete data using four sets of data.
Haitham M. Yousof   +6 more
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

Adaptive goodness-of-fit testing from indirect observations [PDF]

open access: yes, 2009
International audienceIn a convolution model, we observe random variables whose distribution is the convolution of some unknown density $f$ and some known noise density $g$. We assume that $g$ is polynomially smooth.
Butucea, Cristina   +2 more
core   +3 more sources

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