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Comparison of the Quality of Robust PCA versions in the Reducion of datasets with Outliers
P. 1–5.
Goryainov V. B., E. R. Goryainova
The paper considers PCA modifications based on
robust estimates of correlation matrices of observed multivariate
correlated indicators. Based on simulated and real socio-economic
data, the robust versions of the PCA were compared with
the traditional version. A higher quality of robust PCA is
demonstrated when observations contain outliers or have heavytailed
distributions.
Goryainov V. B., Goryainova E. R., , in: 2024 17th International Conference on Management of Large-Scale System Development (MLSD).: IEEE, 2024. P. 1–5.
Added: December 29, 2024
Гриневич П. А., Bocharova A., Stukal D., Политическая наука 2024 № 2 С. 262–281
The potential of a state in developing its “soft power” is an important component in assessing its state capacity. A nation’s “soft power” not only refers to its external attractiveness and informal influence on decisions made by other international actors, but also serves as an important indicator of a country's potential to affect the formation ...
Added: June 14, 2024
Goryainov V. B., Goryainova E. R., Вестник Московского государственного технического университета им. Н.Э. Баумана. Серия Естественные науки 2023 № 2(107) С. 17–34
The paper considers the problem of reducing multidimensional
correlated indicators. One of the approaches
to solving this problem is based on the method of principal
components, which makes it possible to compactly
describe the vector with correlated coordinates (components)
using the principal components vector with
uncorrelated coordinates of much smaller dimension,
while retaining most of the information about correlation
structure of the original ...
Added: August 26, 2023
Takmaz S., Sarı E., Sedat Alataş, Applied Economics Letters 2022
This paper investigates the regional disparity of financial inclusion (FI) and its determinants in
Turkey from 2004 to 2020. To this end, we first construct a FI index using the principal
component analysis. Then, based on the club convergence approach, we test the existence of
convergence to show regional disparities in FI. Finally, we examine the main determinants ...
Added: September 27, 2022
Dubrova T. A., Ермолина А. А., В кн.: Статистика - язык цифровой цивилизацииТ. 2.: Ростов н/Д: ООО "АзовПринт", 2018. С. 98–105.
Comparison of the characteristics of innovative activity of domestic small enterprises with similar indicators of foreign countries indicates that at present in Russia the potential of small business in the innovation sphere is not sufficiently realized. This is indicated by the results of the comparison with EU countries that have a high level of small ...
Added: October 21, 2019
Goryainov V. B., Goryainova E. R., Automation and Remote Control 2019 Vol. 80 No. 4 P. 666–675
Using computer simulation and a study of the asymptotic distribution, we consider the relative efficiency of M-estimates for the coefficients of the threshold autoregressive equation with respect to the least squares and least absolute deviation estimates. We assume that the updating sequence of the autoregressive equation can have Student’s, logistic, double exponential, normal, or contaminated ...
Added: September 30, 2019
Sirotin V., В кн.: Эконометрика: учебник.: М.: Проспект, 2015. Гл. 4 С. 72–92.
Рассматриваются виды мультиколлинеарности и ее последствия, методы диагностики мультиколлинеарности. Наряду с отбором наиболее информативных признаков и удаления дублирующих характеристик представлены методы перехода к в ортогональное признаковое пространство и регуляризации модели без изменения состава регрессоров. ...
Added: March 10, 2017
Goryainova E. R., Goryainov V. B., Вестник Московского государственного технического университета им. Н.Э. Баумана. Серия Естественные науки 2016 № 6 С. 4–15
The article deals with constructing the sign test for the
hypothesis about the order of equation in moving average.
We found the asymptotic distribution of the test statistics
which appeared to be the central X-2-distribution under the
null hypothesis and the noncentral X-2-distribution under
the alternative one. Knowing the asymptotic distribution
makes it possible to calculate the asymptotic relative
efficiency of the ...
Added: February 6, 2017
Goryainov A. V., Goryainova E. R., Automation and Remote Control 2016 Vol. 77 No. 9 P. 1579–1588
For the model of autoregression with a random coefficient, the estimate by the least absolute deviations (LAD) method was proved to be consistent and asymptotically normal. For the asymptotic relative efficiency of the estimate by the LAD method as compared to the least squares method, an analytical expression was obtained. For the case where the ...
Added: November 13, 2016
Antipova T., Shestakova Lidiia, Melnik M., , in: 2016 11th Iberian Conference on Information Systems and Technologies (CISTI).15 - 18 June 2016, Las Palmas.: Нью-Йорк: IEEE, 2016. P. 1–5.
This paper considers how to analyze the performance indicators of universities. The data of this study comes from Russian National Research Universities' statements that are available in open access on official web sites. The main purpose of this study is to define via factor analysis the most important indicators for ranking and performance auditing behind ...
Added: October 23, 2016
Haufe S., Dähne S., Nikulin V., Neuroimage 2014 No. 101 P. 583–597
Neuronal oscillations have been shown to be associated with perceptual, motor and cognitive brain operations. While complex spatio-temporal dynamics are a hallmark of neuronal oscillations, they also represent a formidable challenge for the proper extraction and quantification of oscillatory activity with non-invasive recording techniques such as EEG and MEG. In order to facilitate the study ...
Added: October 23, 2014
Stukal D., Khavenson T., Политическая экспертиза: ПОЛИТЭКС 2012 Т. 8 № 1 С. 238–264
The paper is focused on methodology of modeling state capacity developed within Research Project 47.0 Quantitative and Qualitative Analysis (including QCA) of Factors of Development and Decline of Statemanship of Socialist and Post-Socialist Countries in Europe and Asia at the Second Half of the XX Century and the Beginning of the XXI Century, carried out ...
Added: May 4, 2012