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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">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2023-24-5-112-125</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1623</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>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Оценивание функции среднего для зашумленного случайного процесса при наличии разреженных данных</article-title><trans-title-group xml:lang="en"><trans-title>Mean function estimation for a noisy random process under a sparse data condition</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Линке</surname><given-names>Юлиана Юрьевна</given-names></name><name name-style="western" xml:lang="en"><surname>Linke</surname><given-names>Yuliana Yurievna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">linke@math.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики им. С. Л. Соболева Сибирского отделения Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>31</day><month>01</month><year>2024</year></pub-date><volume>24</volume><issue>5</issue><fpage>112</fpage><lpage>125</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Линке Ю.Ю., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Линке Ю.Ю.</copyright-holder><copyright-holder xml:lang="en">Linke Y.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.chebsbornik.ru/jour/article/view/1623">https://www.chebsbornik.ru/jour/article/view/1623</self-uri><abstract><p>Рассматривается регрессионная постановка задачи оценивания функции математического ожидания некоторого почти наверное непрерывного случайного процесса, когда зашумленные значения независимых копий случайного процесса наблюдаются в некоторых известных наборах точек (вообще говоря, случайных), при этом количество наблюдений для каждой из копий случайно и совокупность этих величин по всем сериям не обязательно состоит из независимых и одинаково распределенных компонент. Данная постановка включает в себя два наиболее популярных в научной литературе варианта разреженных данных, когда либо количества наблюдений в сериях представляют собой независимые одинаково распределенные случайные величины, либо количества наблюдений в каждой серии неслучайны и равномерно ограничены по всем сериям.В работе предложены новые оценки ядерного типа для функции математического ожидания случайного процесса. Доказана равномерная состоятельность новых ядерных оценок при весьма слабых и универсальных ограничениях касательно стохастической природы временных точек наблюдений: требуется лишь, чтобы вся совокупность этих точек с высокой вероятностью образовывала бы измельчающееся разбиение области определения исходного случайного процесса.</p></abstract><trans-abstract xml:lang="en"><p>We consider a regression statement of the problem of estimating the mean function of some almost sure continuous random process, when noisy values of independent copies of this random process are observed in some known sets of time points (generally speaking, random). Moreover, the size of observations for each of the copies is random, and the total collection of the time points for all series does not necessarily consist of independent and identically distributed random variables. This setting includes two of the most popular sparse data variants in the scientific literature, in which ever the sizes of observations in the series are independent identically distributed random variables, or the sizes of observations in each series are nonrandom and uniformly bounded over all series.The paper proposes new kernel-type estimators for the mean function of a random process.The uniform consistency of the new kernel estimators is proved under very weak and universal restrictions regarding the stochastic nature of observed time points: it is only required that the entire set of these points with a high probability would form a refining partition of the original random process domain.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>непараметрическая регрессия</kwd><kwd>оценивание функции среднего</kwd><kwd>разреженные данные</kwd><kwd>ядерные оценки</kwd><kwd>равномерная состоятельность.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nonparametric regression</kwd><kwd>mean function estimation</kwd><kwd>sparse functional data</kwd><kwd>kernel estimation</kwd><kwd>uniform consistency.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках государственного задания ИМ СО РАН (проект FWNF-2024-0001).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Borisov I. 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