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 <front>
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 <journal-id journal-id-type="publisher-id">dongu-vestnik04.ru</journal-id>
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 <journal-title xml:lang="ru">Вестник Донецкого университета. Серия 04. Технические науки</journal-title>
 <trans-title-group xml:lang="en">
 <trans-title>Vestnik of Donetsk University. Series 04. Technical Sciences</trans-title>
 </trans-title-group>
 </journal-title-group>
 <issn publication-format="electronic">2663-4228</issn>
 </journal-meta>
 <article-meta>
 <article-id pub-id-type="publisher-id">530</article-id>
 <article-id pub-id-type="doi">10.5281/zenodo.20799924</article-id>
 <article-categories>
 <subj-group subj-group-type="toc-heading" xml:lang="en">
 <subject>Articles</subject>
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 <subj-group subj-group-type="toc-heading" xml:lang="ru">
 <subject>Статьи</subject>
 </subj-group>
 <subj-group subj-group-type="article-type">
 <subject>Research Article</subject>
 </subj-group>
 </article-categories>
 <title-group>
 <article-title xml:lang="en">INTEGRAL INDICATOR OF INFORMATION COMPLEXITY OF MULTIDIMENSIONAL SYSTEMS BASED ON JS-DIVERGENCE AND STRUCTURAL DISTANCE</article-title>
 <trans-title-group xml:lang="ru">
 <trans-title>ИНТЕГРАЛЬНЫЙ ПОКАЗАТЕЛЬ ИНФОРМАЦИОННОЙ СЛОЖНОСТИ МНОГОМЕРНЫХ СИСТЕМ НА ОСНОВЕ JS-ДИВЕРГЕНЦИИ И СТРУКТУРНОГО РАССТОЯНИЯ</trans-title>
 </trans-title-group>
 </title-group>
 <contrib-group>
 <contrib contrib-type="author">
 <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2218-9230</contrib-id>
 <name-alternatives>
 <name xml:lang="en">
 <surname>Zviagintseva</surname>
 <given-names>Anna Viktorovna</given-names>
 </name>
 <name xml:lang="ru">
 <surname>Звягинцева</surname>
 <given-names>Анна Викторовна</given-names>
 </name>
 </name-alternatives>
 <email>a.zvyagintseva@donnu.ru</email>
 <xref ref-type="aff" rid="aff1">1</xref>
 </contrib>
 <contrib contrib-type="author">
 <contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-4420-9206</contrib-id>
 <name-alternatives>
 <name xml:lang="en">
 <surname>Brazhnikov</surname>
 <given-names>Andrei Romanovich</given-names>
 </name>
 <name xml:lang="ru">
 <surname>Бражников</surname>
 <given-names>Андрей Романович</given-names>
 </name>
 </name-alternatives>
 <email>yanox123321@gmail.com</email>
 <xref ref-type="aff" rid="aff2">2</xref>
 </contrib>
 </contrib-group>
 <aff-alternatives id="aff1">
 <aff xml:lang="ru">
 <institution>ФГБОУ ВО «Донецкий государственный университет»</institution>
 </aff>
 <aff xml:lang="en">
 <institution>Donetsk State University</institution>
 </aff>
 </aff-alternatives>
 <aff-alternatives id="aff2">
 <aff xml:lang="ru">
 <institution>ФГБОУ ВО «Донецкий государственный университет»</institution>
 </aff>
 <aff xml:lang="en">
 <institution>Donetsk State University</institution>
 </aff>
 </aff-alternatives>
 <pub-date date-type="pub" iso-8601-date="05.06.2026" publication-format="electronic" />
 <issue>2</issue>
 <issue-title xml:lang="en">NO2 (05.0)</issue-title>
 <issue-title xml:lang="ru">№2 (05.0)</issue-title>
 <fpage>69</fpage>
 <lpage>85</lpage>
 <history>
 <date date-type="received" iso-8601-date="2026-07-23">
 <day>23</day>
 <month>07</month>
 <year>2026</year>
 </date>
 </history>
 <permissions>
 <copyright-statement xml:lang="ru">Copyright ©; 2026, Вестник Донецкого университета. Серия 04. Технические науки</copyright-statement>
 <copyright-statement xml:lang="en">Copyright ©; 2026, Vestnik of Donetsk University. Series 04. Technical Sciences</copyright-statement>
 <copyright-year>2026</copyright-year>
 <copyright-holder xml:lang="ru">Вестник Донецкого университета. Серия 04. Технические науки</copyright-holder>
 <copyright-holder xml:lang="en">Vestnik of Donetsk University. Series 04. Technical Sciences</copyright-holder>
 <license license-type="open-access" ns0:href="https://creativecommons.org/licenses/by-nc/4.0/" xml:lang="ru">
 <license-p>Эта статья распространяется на условиях лицензии Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)</license-p>
 </license>
 <license license-type="open-access" ns0:href="https://creativecommons.org/licenses/by-nc/4.0/" xml:lang="en">
 <license-p>This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)</license-p>
 </license>
 <ali:free_to_read />
 </permissions>
 <self-uri ns0:href="https://dongu-vestnik04.ru/index.php/vestnik04/article/view/530">https://dongu-vestnik04.ru/index.php/vestnik04/article/view/530</self-uri>
 <abstract xml:lang="en">
 <p>A systematic analysis of three approaches to complexity assessment is presented: Shannon entropy, Kolmogorov algorithmic complexity, and early warning signals. It is shown that existing methods have limited universality for nonstationary multidimensional systems. The central contribution is a phenomenological approach that assesses complexity as the deviation of the system's current state from a reference (normal) regime. An integral information complexity indicator is proposed, based on an adaptive combination of the symmetrized Jensen-Shannon divergence and the normalized Frobenius structural distance. An automatic procedure for determining the weight coefficient is introduced. The hypothesis of cross-domain invariance of the two-phase degradation mechanism is formulated. An empirical base of five subject domains is compiled for experimental verification. A computational experiment on the Bank of Russia exchange rates for 2018–2026 (252-day window) identified the 2022 sanction shock as the most acute episode and confirmed the hypothesis of domain-specific decomposition (Kruskal-Wallis test).</p>
 </abstract>
 <trans-abstract xml:lang="ru">
 <p>Проведен систематический анализ трёх подходов к оценке сложности систем: энтропии Шеннона, алгоритмической сложности Колмогорова и метода ранних предупреждающих сигналов. Показано, что существующие методы обладают ограниченной универсальностью для нестационарных многомерных систем. Центральным вкладом работы является феноменологический подход, оценивающий сложность как отклонение текущего состояния системы от опорного (нормального) режима. Предложен интегральный показатель информационной сложности, основанный на адаптивной комбинации симметризованной дивергенции Йенсена-Шеннона и нормированного структурного расстояния Фробениуса. Введена автоматическая процедура определения весового коэффициента. Выдвинута гипотеза о кросс-доменной инвариантности двухфазного механизма деградации. Сформирована эмпирическая база из пяти предметных областей для верификации метода. На курсах валют ЦБ РФ за 2018–2026 гг. (окно 252 торговых дня) проведен расчётный эксперимент: интегральный показатель информационной сложности идентифицировал санкционный шок 2022 года как наиболее острый эпизод и подтвердил гипотезу о доменно-специфичной декомпозиции (тест Краскела-Уоллиса).</p>
 </trans-abstract>
 <kwd-group xml:lang="en">
 <kwd>complexity, entropy, information measure, critical transitions, Jensen-Shannon divergence, multidimensional analysis, phenomenological model</kwd>
 </kwd-group>
 <kwd-group xml:lang="ru">
 <kwd>сложность, энтропия, информационная мера, критические переходы, дивергенция Йенсена-Шеннона, многомерный анализ, феноменологическая модель</kwd>
 </kwd-group>
 </article-meta>
 </front>
 <body>
 <p>[Полный текст статьи отсутствует в исходных данных. Необходимо добавить текст из PDF или другого источника.]</p>
 </body>
 <back>
 <ref-list>
 <title>Список литературы</title>
 <ref id="B1">
 <mixed-citation>1. Early-warning signals for critical transitions / M. Scheffer, V. Dakos, E. H. Van Nes [et al.] // Nature. – 2009. – Vol. 461, No. 7260. – P. 53–59. – DOI 10.1038/nature08227.</mixed-citation>
 </ref>
 <ref id="B2">
 <mixed-citation>2. Lenton, T. M. Tipping elements in the Earth's climate system / T. M. Lenton, H. Held, E. Kriegler // Proceedings of the National Academy of Sciences USA. – 2008. – Vol. 105, No. 6. – P. 1786–1793. – DOI 10.1073/pnas.0705414105.</mixed-citation>
 </ref>
 <ref id="B3">
 <mixed-citation>3. Slowing down as an early warning signal for abrupt climate change / V. Dakos, M. Scheffer, E. H. Van Nes [et al.] // Proceedings of the National Academy of Sciences USA. – 2008. – Vol. 105, No. 38. – P. 14308–14312. – DOI 10.1073/pnas.0802430105.</mixed-citation>
 </ref>
 <ref id="B4">
 <mixed-citation>4. Shannon, C. E. A mathematical theory of communication / C. E. Shannon // Bell System Technical Journal. – 1948. – Vol. 27. – P. 379–423. – DOI 10.1002/j.1538-7305.1948.tb01338.x.</mixed-citation>
 </ref>
 <ref id="B5">
 <mixed-citation>5. Колмогоров, А. Н. Три подхода к определению понятия «количество информации» / А. Н. Колмогоров // Проблемы передачи информации. – 1965. – Т. 1, № 1. – С. 3–11.</mixed-citation>
 </ref>
 <ref id="B6">
 <mixed-citation>6. Chaitin, G. J. Information-Theoretic Limitations of Formal Systems / G. J. Chaitin // Journal of the ACM. – 1974. – Vol. 21, No. 3. – P. 403–424. – DOI 10.1145/321832.321839.</mixed-citation>
 </ref>
 <ref id="B7">
 <mixed-citation>7. Evaluating the performance of multivariate indicators of resilience loss / E. Weinans [et al.] // Scientific Reports. – 2021. – Vol. 11, No. 1. – Art. 9148. – 14 p. – DOI 10.1038/s41598-021-87839-y.</mixed-citation>
 </ref>
 <ref id="B8">
 <mixed-citation>8. Overshooting tipping point thresholds / P. D. L. Ritchie [et al.] // Nature. – 2021. – Vol. 592, No. 7855. – P. 517–523. – DOI 10.1038/s41586-021-03263-2.</mixed-citation>
 </ref>
 <ref id="B9">
 <mixed-citation>9. Аверин, Г. В. Системодинамика: теория и приложения / Г. В. Аверин. – Донецк: ООО «НПП «Фолиант», 2022. – 535 с. – ISBN 978-5-6047945-0-0. – EDN LJDBFI.</mixed-citation>
 </ref>
 <ref id="B10">
 <mixed-citation>10. Звягинцева, А. В. Вероятностные методы комплексной оценки природно-антропогенных систем / А. В. Звягинцева. – Москва: Издательский дом «Спектр», 2016. – 257 с. – ISBN 978-5-4442-0120-6. – EDN AXBXXZ.</mixed-citation>
 </ref>
 <ref id="B11">
 <mixed-citation>11. Richman, J. S. Physiological time-series analysis using approximate entropy and sample entropy / J. S. Richman, J. R. Moorman // American Journal of Physiology. – 2000. – Vol. 278, No. 6. – P. H2039–H2049. – DOI 10.1152/ajpheart.2000.278.6.H2039.</mixed-citation>
 </ref>
 <ref id="B12">
 <mixed-citation>12. Bandt, C. Permutation entropy / C. Bandt, B. Pompe // Physical Review Letters. – 2002. – Vol. 88, No. 17. – P. 174102. – DOI 10.1103/PhysRevLett.88.174102.</mixed-citation>
 </ref>
 <ref id="B13">
 <mixed-citation>13. Costa, M. Multiscale entropy analysis / M. Costa, A. L. Goldberger, C.-K. Peng // Physical Review Letters. – 2002. – Vol. 89, No. 6. – P. 068102. – DOI 10.1103/PhysRevLett.89.068102.</mixed-citation>
 </ref>
 <ref id="B14">
 <mixed-citation>14. Cilibrasi, R. Clustering by compression / R. Cilibrasi, P. M. Vitanyi // IEEE Transactions on Information Theory. – 2005. – Vol. 51, No. 4. – P. 1523–1545. – DOI 10.1109/TIT.2005.844059.</mixed-citation>
 </ref>
 <ref id="B15">
 <mixed-citation>15. Pincus, S. M. Approximate entropy as a measure of system complexity / S. M. Pincus // Proceedings of the National Academy of Sciences USA. – 1991. – Vol. 88, No. 6. – P. 2297–2301. – DOI 10.1073/pnas.88.6.2297.</mixed-citation>
 </ref>
 <ref id="B16">
 <mixed-citation>16. Звягинцева, А. В. Выявление взаимосвязи сложных событий на примере анализа статистических данных о чрезвычайных ситуациях / А. В. Звягинцева, Т. К. Гучмазова, Р. В. Клеменюк // Вестник Донецкого национального университета. Серия Г: Технические науки. – 2024. – № 3. – С. 45-54. – DOI 10.5281/zenodo.14018559. – EDN QAUAIC.</mixed-citation>
 </ref>
 <ref id="B17">
 <mixed-citation>17. Звягинцева, А. В. Анализ моделей классификации для распознавания прецедентных событий в технологических процессах добычи нефти и газа / А. В. Звягинцева, И. Ю. Ковалев // Проблемы искусственного интеллекта. – 2025. – № 2(37). – С. 66–78. – DOI 10.24412/2413-7383-2025-2-37-66-78.</mixed-citation>
 </ref>
 <ref id="B18">
 <mixed-citation>18. Prokopenko, M. Relating Fisher information to order parameters / M. Prokopenko [et al.] // Physical Review E. – 2011. – Vol. 84, No. 4. – P. 041116. – DOI 10.1103/PhysRevE.84.041116.</mixed-citation>
 </ref>
 <ref id="B19">
 <mixed-citation>19. Аверин, Г. В. Феноменологический подход к комплексной оценке сложности многомерных систем / Г. В. Аверин, А. В. Звягинцева, А. Р. Бражников // Вестник Донецкого национального университета. Серия Г: Технические науки. – 2026. – № 1. – С. 124–140. – DOI 10.1109/18.61115. – EDN WSFTVO.</mixed-citation>
 </ref>
 <ref id="B20">
 <mixed-citation>20. Lin, J. Divergence measures based on the Shannon entropy / J. Lin // IEEE Transactions on Information Theory. – 1991. – Vol. 37, No. 1. – P. 145–151. – DOI 10.5281/zenodo.19201881.</mixed-citation>
 </ref>
 <ref id="B21">
 <mixed-citation>21. Bishop, C. M. Pattern Recognition and Machine Learning / C. M. Bishop. – New York: Springer, 2006. – 738 p. – P. 55–56, 93–94. – ISBN 978-0-387-31073-2.</mixed-citation>
 </ref>
 <ref id="B22">
 <mixed-citation>22. Golub, G. H. Matrix Computations / G. H. Golub, C. F. Van Loan. – 4th ed. – Baltimore: Johns Hopkins University Press, 2013. – 780 p. – P. 69–71. – ISBN 978-1-4214-0794-4.</mixed-citation>
 </ref>
 <ref id="B23">
 <mixed-citation>23. Ledoit, O. Honey, I shrunk the sample covariance matrix / O. Ledoit, M. Wolf // The Journal of Portfolio Management. – 2004. – Vol. 30, No. 4. – P. 110–119. – DOI 10.3905/jpm.2004.110.</mixed-citation>
 </ref>
 <ref id="B24">
 <mixed-citation>24. Kornprobst, A. Winning investment strategies based on financial crisis indicators / A. Kornprobst, R. Douady // Journal of Investment Strategies. – 2019. – Vol. 8, No. 2. – P. 1–28.</mixed-citation>
 </ref>
 <ref id="B25">
 <mixed-citation>25. Identifying critical states of complex diseases by single-sample Jensen-Shannon divergence / J. Yan, P. Li, R. Gao [et al.] // Frontiers in Oncology. – 2021. – Vol. 11. – Art. 684781. – DOI 10.3389/fonc.2021.684781.</mixed-citation>
 </ref>
 <ref id="B26">
 <mixed-citation>26. Центральный банк Российской Федерации. Статистические данные в формате XML [Электронный ресурс]. – URL: https://www.cbr.ru/development/SXML/ (дата обращения 07.03.2026).</mixed-citation>
 </ref>
 <ref id="B27">
 <mixed-citation>27. Moscow Exchange. ISS Informational &amp; Statistical Server [Electronic resource]. – URL: https://iss.moex.com/ (дата обращения 07.03.2026).</mixed-citation>
 </ref>
 <ref id="B28">
 <mixed-citation>28. Федеральная служба государственной статистики Российской Федерации (Росстат) [Электронный ресурс]. – URL: https://rosstat.gov.ru/ (дата обращения 07.03.2026).</mixed-citation>
 </ref>
 <ref id="B29">
 <mixed-citation>REFERENCES LIST</mixed-citation>
 </ref>
 <ref id="B30">
 <mixed-citation>1. Early-warning signals for critical transitions / M. Scheffer, V. Dakos, E. H. Van Nes [et al.] // Nature. – 2009. – Vol. 461, No. 7260. – P. 53–59. – DOI 10.1038/nature08227.</mixed-citation>
 </ref>
 <ref id="B31">
 <mixed-citation>2. Lenton, T. M. Tipping elements in the Earth's climate system / T. M. Lenton, H. Held, E. Kriegler // Proceedings of the National Academy of Sciences USA. – 2008. – Vol. 105, No. 6. – P. 1786–1793. – DOI 10.1073/pnas.0705414105.</mixed-citation>
 </ref>
 <ref id="B32">
 <mixed-citation>3. Slowing down as an early warning signal for abrupt climate change / V. Dakos, M. Scheffer, E. H. Van Nes [et al.] // Proceedings of the National Academy of Sciences USA. – 2008. – Vol. 105, No. 38. – P. 14308–14312. – DOI 10.1073/pnas.0802430105.</mixed-citation>
 </ref>
 <ref id="B33">
 <mixed-citation>4. Shannon, C. E. A mathematical theory of communication / C. E. Shannon // Bell System Technical Journal. – 1948. – Vol. 27. – P. 379–423. – DOI 10.1002/j.1538-7305.1948.tb01338.x.</mixed-citation>
 </ref>
 <ref id="B34">
 <mixed-citation>5. Kolmogorov, A. N. Tri podkhoda k opredeleniiu poniatiia «kolichestvo informatsii» / A. N. Kolmogorov // Problemy peredachi informatsii. – 1965. – T. 1, № 1. – S. 3–11.</mixed-citation>
 </ref>
 <ref id="B35">
 <mixed-citation>6. Chaitin, G. J. Information-Theoretic Limitations of Formal Systems / G. J. Chaitin // Journal of the ACM. – 1974. – Vol. 21, No. 3. – P. 403–424. – DOI 10.1145/321832.321839.</mixed-citation>
 </ref>
 <ref id="B36">
 <mixed-citation>7. Evaluating the performance of multivariate indicators of resilience loss / E. Weinans [et al.] // Scientific Reports. – 2021. – Vol. 11, No. 1. – Art. 9148. – 14 p. – DOI 10.1038/s41598-021-87839-y.</mixed-citation>
 </ref>
 <ref id="B37">
 <mixed-citation>8. Overshooting tipping point thresholds / P. D. L. Ritchie [et al.] // Nature. – 2021. – Vol. 592, No. 7855. – P. 517–523. – DOI 10.1038/s41586-021-03263-2.</mixed-citation>
 </ref>
 <ref id="B38">
 <mixed-citation>9. Averin, G. V. Sistemodinamika: teoriia i prilozheniia / G. V. Averin. – Donetsk: OOO «NPP «Foliant», 2022. – 535 s. – ISBN 978-5-6047945-0-0. – EDN LJDBFI.</mixed-citation>
 </ref>
 <ref id="B39">
 <mixed-citation>10. Zviagintseva, A. V. Veroiatnostnye metody kompleksnoi otsenki prirodno-antropogennykh sistem / A. V. Zviagintseva. – Moskva: Izdatelskii dom «Spektr», 2016. – 257 s. – ISBN 978-5-4442-0120-6. – EDN AXBXXZ.</mixed-citation>
 </ref>
 <ref id="B40">
 <mixed-citation>11. Richman, J. S. Physiological time-series analysis using approximate entropy and sample entropy / J. S. Richman, J. R. Moorman // American Journal of Physiology. – 2000. – Vol. 278, No. 6. – P. H2039–H2049. – DOI 10.1152/ajpheart.2000.278.6.H2039.</mixed-citation>
 </ref>
 <ref id="B41">
 <mixed-citation>12. Bandt, C. Permutation entropy / C. Bandt, B. Pompe // Physical Review Letters. – 2002. – Vol. 88, No. 17. – P. 174102. – DOI 10.1103/PhysRevLett.88.174102.</mixed-citation>
 </ref>
 <ref id="B42">
 <mixed-citation>13. Costa, M. Multiscale entropy analysis / M. Costa, A. L. Goldberger, C.-K. Peng // Physical Review Letters. – 2002. – Vol. 89, No. 6. – P. 068102. – DOI 10.1103/PhysRevLett.89.068102.</mixed-citation>
 </ref>
 <ref id="B43">
 <mixed-citation>14. Cilibrasi, R. Clustering by compression / R. Cilibrasi, P. M. Vitanyi // IEEE Transactions on Information Theory. – 2005. – Vol. 51, No. 4. – P. 1523–1545. – DOI 10.1109/TIT.2005.844059.</mixed-citation>
 </ref>
 <ref id="B44">
 <mixed-citation>15. Pincus, S. M. Approximate entropy as a measure of system complexity / S. M. Pincus // Proceedings of the National Academy of Sciences USA. – 1991. – Vol. 88, No. 6. – P. 2297–2301. – DOI 10.1073/pnas.88.6.2297.</mixed-citation>
 </ref>
 <ref id="B45">
 <mixed-citation>16. Zviagintseva, A. V. Vyiavlenie vzaimosviazi slozhnykh sobytii na primere analiza statisticheskikh dannykh o chrezvychainykh situatsiiakh / A. V. Zviagintseva, T. K. Guchmazova, R. V. Klemeniuk // Vestnik Donetskogo natsionalnogo universiteta. Seriia G: Tekhnicheskie nauki. – 2024. – № 3. – S. 45-54. – DOI 10.5281/zenodo.14018559. – EDN QAUAIC.</mixed-citation>
 </ref>
 <ref id="B46">
 <mixed-citation>17. Zviagintseva, A. V. Analiz modelei klassifikatsii dlia raspoznavaniia pretsedentnykh sobytii v tekhnologicheskikh protsessakh dobychi nefti i gaza / A. V. Zviagintseva, I. Iu. Kovalev // Problemy iskusstvennogo intellekta. – 2025. – № 2(37). – S. 66–78. – DOI 10.24412/2413-7383-2025-2-37-66-78.</mixed-citation>
 </ref>
 <ref id="B47">
 <mixed-citation>18. Prokopenko, M. Relating Fisher information to order parameters / M. Prokopenko [et al.] // Physical Review E. – 2011. – Vol. 84, No. 4. – P. 041116. – DOI 10.1103/PhysRevE.84.041116.</mixed-citation>
 </ref>
 <ref id="B48">
 <mixed-citation>19. Averin, G. V. Fenomenologicheskii podkhod k kompleksnoi otsenke slozhnosti mnogomernykh sistem / G. V. Averin, A. V. Zviagintseva, A. R. Brazhnikov // Vestnik Donetskogo natsionalnogo universiteta. Seriia G: Tekhnicheskie nauki. – 2026. – № 1. – S. 124–140. – DOI 10.1109/18.61115. – EDN WSFTVO.</mixed-citation>
 </ref>
 <ref id="B49">
 <mixed-citation>20. Lin, J. Divergence measures based on the Shannon entropy / J. Lin // IEEE Transactions on Information Theory. – 1991. – Vol. 37, No. 1. – P. 145–151. – DOI 10.5281/zenodo.19201881.</mixed-citation>
 </ref>
 <ref id="B50">
 <mixed-citation>21. Bishop, C. M. Pattern Recognition and Machine Learning / C. M. Bishop. – New York: Springer, 2006. – 738 p. – P. 55–56, 93–94. – ISBN 978-0-387-31073-2.</mixed-citation>
 </ref>
 <ref id="B51">
 <mixed-citation>22. Golub, G. H. Matrix Computations / G. H. Golub, C. F. Van Loan. – 4th ed. – Baltimore: Johns Hopkins University Press, 2013. – 780 p. – P. 69–71. – ISBN 978-1-4214-0794-4.</mixed-citation>
 </ref>
 <ref id="B52">
 <mixed-citation>23. Ledoit, O. Honey, I shrunk the sample covariance matrix / O. Ledoit, M. Wolf // The Journal of Portfolio Management. – 2004. – Vol. 30, No. 4. – P. 110–119. – DOI 10.3905/jpm.2004.110.</mixed-citation>
 </ref>
 <ref id="B53">
 <mixed-citation>24. Kornprobst, A. Winning investment strategies based on financial crisis indicators / A. Kornprobst, R. Douady // Journal of Investment Strategies. – 2019. – Vol. 8, No. 2. – P. 1–28.</mixed-citation>
 </ref>
 <ref id="B54">
 <mixed-citation>25. Identifying critical states of complex diseases by single-sample Jensen-Shannon divergence / J. Yan, P. Li, R. Gao [et al.] // Frontiers in Oncology. – 2021. – Vol. 11. – Art. 684781. – DOI 10.3389/fonc.2021.684781.</mixed-citation>
 </ref>
 <ref id="B55">
 <mixed-citation>26. Tsentralnyi bank Rossiiskoi Federatsii. Statisticheskie dannye v formate XML [Elektronnyi resurs]. – URL: https://www.cbr.ru/development/SXML/ (data obrashcheniia 07.03.2026).</mixed-citation>
 </ref>
 <ref id="B56">
 <mixed-citation>27. Moscow Exchange. ISS Informational &amp; Statistical Server [Electronic resource]. – URL: https://iss.moex.com/ (data obrashcheniia 07.03.2026).</mixed-citation>
 </ref>
 <ref id="B57">
 <mixed-citation>28. Federalnaia sluzhba gosudarstvennoi statistiki Rossiiskoi Federatsii (Rosstat) [Elektronnyi resurs]. – URL: https://rosstat.gov.ru/ (data obrashcheniia 07.03.2026).</mixed-citation>
 </ref>
 </ref-list>
 </back>
 </article>
