Informatics and Applications
December 2013, Volume 7, Issue 4, pp 94-104
ANALYSIS OF DATA HOMOGENEITY OF THE CHEMICAL COMPOSITIONS OF STONES IN CASE OF UROLITHIASIS
- M. P. Krivenko
- S.A. Golovanov
- A. V. Sivkov
Abstract
The article considers the methods for researching homogeneity of the data on chemical composition of
urinary stones. Multidimensionality of the data, scarce spectrum of various values of indicators, impossibility to
apply simple adequate likelihood models to them, and, also, absence of experience in such type of modeling in
the field of urology are the cause of the considered problems specificity. The test of significance based on distance
between sets of points in Euclidean space is suggested and analyzed. It is used to analyze a composition of stones
dependence on the sex of a patient. In the case of analysis of changes in the composition of stones with time (as
time goes), the proposed criterion is used as an element of pairwise comparisons of data for different time intervals.
That is the first time when the idea of approximation of emerging relationships between groups of data with the
help of equivalence relations is used. It allows reasonably carrying out the stratification of the original data. The
experiments produced statistically valid results about the features of urolithiasis depending both on the sex of the
patient and the changes over time.
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[+] About this article
Title
ANALYSIS OF DATA HOMOGENEITY OF THE CHEMICAL COMPOSITIONS OF STONES IN CASE OF UROLITHIASIS
Journal
Informatics and Applications
December 2013, Volume 7, Issue 4, pp 94-104
Cover Date
2013-12-31
DOI
10.14357/19922264130410
Print ISSN
1992-2264
Publisher
Institute of Informatics Problems, Russian Academy of Sciences
Additional Links
Key words
tests of homogeneity; stratification; bootstrap method; urolithiasis
Authors
M. P. Krivenko  , S.A. Golovanov  , and A. V. Sivkov
Author Affiliations
Institute of Informatics Problems, Russian Academy of Sciences, Moscow, Russia
Research Institute of Urology, Moscow, Russia
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