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Incremental Attribute Reduction Method Based on Chi-Square Statistics and Information Entropy

open access: yesIEEE Access, 2020
Attributes in datasets are usually not equally significant. Some attributes are unnecessary or redundant. Attribute reduction is an important research issue of rough set theory, which can find minimum subsets of attributes with the same classification ...
Na Su   +3 more
doaj   +2 more sources

Chi-square test for imprecise data in consistency table

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
In this paper, we propose the introduction of a neutrosophic chi-square-test for consistency, incorporating neutrosophic statistics. Our aim is to modify the existing chi-square -test for consistency in order to analyze imprecise data. We present a novel
Muhammad Aslam, Florentin Smarandache
doaj   +2 more sources

Monotonicity of Chi-square Test Statistics [PDF]

open access: yesSSRN Electronic Journal, 2003
This paper establishes monotonicity of the chi-square test statistic. As the more efficient parameter estimator is plugged into the test statistic, the degrees of freedom of the resulting chi-square test statistic monotonically increase.
Ryu, Keunkwan
core   +5 more sources

Pearson-Fisher Chi-Square Statistic Revisited [PDF]

open access: yesInformation, 2011
The Chi-Square test (χ2 test) is a family of tests based on a series of assumptions and is frequently used in the statistical analysis of experimental data.
Radu E. Sestraş   +4 more
doaj   +2 more sources

Chi-square test under indeterminacy: an application using pulse count data

open access: yesBMC Medical Research Methodology, 2021
Background The data obtained from the counting process is known as the count data. In practice, the counting can be done at the same time or the time of the count is not the same.
Muhammad Aslam
doaj   +2 more sources

Selecting estimated models using chi-square statistics [PDF]

open access: yesAnnals of Economics and Statistics, 1991
Cet article propose des tests de choix entre modèles estimés à partir de statistiques de Pearson d'ajustement. Ces statistiques peuvent être construites à partir d'estimateurs asymptotiquement normaux, ce qui permet une grande flexibilité dans l'utilisation de nos tests.
Vuong, Q.H., Wang, W.
openaire   +7 more sources

On the Mistaken Use of the Chi-Square Test in Benford’s Law

open access: yesStats, 2021
Benford’s Law predicts that the first significant digit on the leftmost side of numbers in real-life data is distributed between all possible 1 to 9 digits approximately as in LOG(1 + 1/digit), so that low digits occur much more frequently than high ...
Alex Ely Kossovsky
doaj   +2 more sources

Robust Kalman Filtering Based on Chi-square Increment and Its Application

open access: yesRemote Sensing, 2020
In Global Navigation Satellite System (GNSS) positioning, gross errors seriously limit the validity of Kalman filtering and make the final positioning solutions untrustworthy.
Bo Li   +7 more
doaj   +2 more sources

Monotonicity of Chi-square Test Statistics [PDF]

open access: yesMonotonicity of Chi-square Test Statistics
This paper establishes monotonicity of the chi-square test statistic. As the more efficient parameter estimator is plugged into the test statistic, the degrees of freedom of the resulting chi-square test statistic monotonically increase.
Keunkwan Ryu
openaire   +2 more sources

Bounds for the chi-square approximation of the power divergence family of statistics [PDF]

open access: yesJournal of Applied Probability, 2021
It is well known that each statistic in the family of power divergence statistics, across n trials and r classifications with index parameter $\lambda\in\mathbb{R}$ (the Pearson, likelihood ratio, and Freeman–Tukey statistics correspond to $\lambda=1 ...
Robert E. Gaunt
semanticscholar   +1 more source

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