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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vguit</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Воронежского государственного университета инженерных технологий</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Voronezh State University of Engineering Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-910X</issn><issn pub-type="epub">2310-1202</issn><publisher><publisher-name>VSUET</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20914/2310-1202-2024-2-48-55</article-id><article-id custom-type="elpub" pub-id-type="custom">vguit-3451</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Процессы и аппараты пищевых производств</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Processes and equipment for food industry</subject></subj-group></article-categories><title-group><article-title>О статистической устойчивости оптимального решения, найденного по уравнению регрессии</article-title><trans-title-group xml:lang="en"><trans-title>On the statistical stability of the optimal solution, found from the regression equation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1043-7682</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бугаев</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bugaev</surname><given-names>Y. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.ф.-м.н., профессор, кафедра математики, ул. Старых Большевиков, 54 «А», г. Воронеж, 394064, Россия</p></bio><bio xml:lang="en"><p>Dr. Sci. (Phys.-Math.), professor, mathematics department, st. Senior Bolsheviks, 54 "A", Voronezh, 394064, Russia</p></bio><email xlink:type="simple">y_bugaev52@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1349-732X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коробова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Korobova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент, кафедра информационных технологий, моделирования и управления, пр-т Революции, 19, г. Воронеж, 394036, Россия</p></bio><bio xml:lang="en"><p>Cand. Sci. (Engin.), associate professor, information technologies, modeling and management department, Revolution Av., 19 Voronezh, 394036, Russia</p></bio><email xlink:type="simple">lyudmila_korobova@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0992-2998</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шурупова</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Shurupova</surname><given-names>I. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.ф.-м.н., старший преподаватель, кафедра математики, ул. Старых Большевиков, 54 «А», г. Воронеж, 394064, Россия</p></bio><bio xml:lang="en"><p>Cand. Sci. (Phys.-Math.), senior lecturer, mathematics department, st. Senior Bolsheviks, 54 "A", Voronezh, 394064, Russia</p></bio><email xlink:type="simple">i_shur@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Военно-воздушная академия» им. проф. Н.Е. Жуковского и Ю.А. Гагарина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Air Force Academy named after prof. N.E. Zhukovsky and Yu.A. Gagarina</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Воронежский государственный университет инженерных технологий</institution><country>Russian Federation</country></aff><aff xml:lang="en"><institution>Voronezh State University of Engineering Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Военно-воздушная академия» им. проф. Н.Е. Жуковского и Ю.А. Гагарина</institution><country>Russian Federation</country></aff><aff xml:lang="en"><institution>Air Force Academy named after prof. N.E. Zhukovsky and Yu.A. Gagarina</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>11</day><month>05</month><year>2024</year></pub-date><volume>86</volume><issue>2</issue><fpage>48</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бугаев Ю.В., Коробова Л.А., Шурупова И.Ю., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Бугаев Ю.В., Коробова Л.А., Шурупова И.Ю.</copyright-holder><copyright-holder xml:lang="en">Bugaev Y.V., Korobova L.A., Shurupova I.Y.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.vestnik-vsuet.ru/vguit/article/view/3451">https://www.vestnik-vsuet.ru/vguit/article/view/3451</self-uri><abstract><p>Результаты любых экспериментов сопровождаются погрешностями из-за неточности измерений и влияния неконтролируемых факторов. Это значит, что при проведении и использовании результатов экспериментов необходимо уметь установить точность полученных решений и выводов. Это особенно важно при поиске оптимальных условий, поскольку оптимизационные задачи обладают плохой обусловленностью и весьма чувствительны к погрешностям измерений и вычислений. Данная работа посвящена исследованию чувствительности статистических оптимизационных моделей, полученных на основании уравнения регрессии и применяемых при изучении процессов пищевых технологий. Для абстрактной оптимизационной задачи координата точки экстремума рассматривалась как некоторая случайная величина, значение которой варьирует под действием ошибок экспериментов. В результате проделанных исследований получены формулы для функции и плотности распределения этой величины. Они позволяют рассчитать доверительный интервал положения оптимума. На примере данных из литературного источника показано, что даже при удовлетворительных статистических характеристиках построенного уравнения регрессии координата точки экстремума может варьировать в весьма широких пределах – более 100% от найденной оценки. Предложены меры для повышения статистической устойчивости решения оптимизационной задачи посредством смещения области планирования в предполагаемую окрестность оптимальной точки. С помощью построенных законов распределения получены численные оценки степени сужения доверительного интервала координаты точки экстремума после подобного смещения. Достигнутый эффект продемонстрирован на примере оптимизационной задачи из литературного источника. Помимо этого, было также выяснено, что при построении квадратичного уравнения регрессии в оптимальной области возможно ухудшение показателей значимости регрессии по сравнению с моделями, построенным для удаленной области планирования. Поэтому при экспериментах в оптимальной области особенно важно добиваться уменьшения влияния экспериментальных ошибок, например, посредством увеличения количества параллельных опытов.</p></abstract><trans-abstract xml:lang="en"><p>The results of any experiments are accompanied by errors due to measurement inaccuracy and the influence of uncontrollable factors. This means that when conducting and using the results of experiments, it is necessary to be able to establish the accuracy of the solutions and conclusions obtained. This is especially important when searching for optimal conditions, since optimization problems are poorly conditioned and are very sensitive to measurement and calculation errors. This work is devoted to the study of the sensitivity of statistical optimization models obtained on the basis of the regression equation and used in the study of food technology processes. For an abstract optimization problem, the coordinate of the extremum point was considered as some random variable, the value of which varies under the influence of experimental errors. As a result of the research, formulas for the function and density of distribution of this quantity were obtained. They allow you to calculate the confidence interval of the optimum position. Using data from a literary source as an example, it is shown that even with satisfactory statistical characteristics of the constructed regression equation, the coordinate of the extremum point can vary within a very wide range - more than 100% of the found estimate. Measures are proposed to increase the statistical stability of the solution to the optimization problem by shifting the planning area to the expected vicinity of the optimal point. Using the constructed distribution laws, numerical estimates of the degree of narrowing of the confidence interval of the coordinates of the extremum point after such a shift were obtained. The achieved effect is demonstrated using an example of an optimization problem from a literary source. In addition, it was also found that when constructing a quadratic regression equation in the optimal area, regression significance indicators may deteriorate compared to models built for a remote planning area. Therefore, when experimenting in the optimal region, it is especially important to reduce the influence of experimental errors, for example, by increasing the number of parallel experiments</p></trans-abstract><kwd-group xml:lang="ru"><kwd>задача оптимизации</kwd><kwd>уравнение регрессии</kwd><kwd>точка экстремума</kwd><kwd>ошибки эксперимента</kwd><kwd>закон распределения</kwd><kwd>статистическая устойчивость</kwd><kwd>доверительный интервал</kwd></kwd-group><kwd-group xml:lang="en"><kwd>optimization problem</kwd><kwd>regression equation</kwd><kwd>extremum point</kwd><kwd>experimental errors</kwd><kwd>distribution law</kwd><kwd>statistical stability</kwd><kwd>confidence interval</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Магомедов Г.О., Лобосова Л.А., Рожков С.А., Селина Н.А. 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