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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2025-91-7-85-93</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-2549</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>МАТЕМАТИЧЕСКИЕ МЕТОДЫ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL METHODS OF INVESTIGATION</subject></subj-group></article-categories><title-group><article-title>Информация Фишера в модели конкурирующих рисков при неоднородном цензурировании случайным интервалом</article-title><trans-title-group xml:lang="en"><trans-title>Fisher information in a competing risks model with inhomogeneous random interval censoring</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>Нурмухамедова</surname><given-names>Наргиза Сайдиллаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Nurmukhamedova</surname><given-names>Nargiza S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наргиза Сайдиллаевна Нурмухамедова,</p><p>100174, Ташкент, ул. Университетская, д. 4.</p></bio><bio xml:lang="en"><p>Nargiza S. Nurmukhamedova,</p><p>4, Universitetskaya ul., Tashkent, 100174.</p></bio><email xlink:type="simple">n.nurmuhamedova@nuu.uz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный университет Узбекистана им. Мирзо Улугбека</institution><country>Узбекистан</country></aff><aff xml:lang="en"><institution>National University of Uzbekistan named after Mirzo Ulugbek</institution><country>Uzbekistan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>07</month><year>2025</year></pub-date><volume>91</volume><issue>7</issue><fpage>85</fpage><lpage>93</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нурмухамедова Н.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Нурмухамедова Н.С.</copyright-holder><copyright-holder xml:lang="en">Nurmukhamedova N.S.</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.zldm.ru/jour/article/view/2549">https://www.zldm.ru/jour/article/view/2549</self-uri><abstract><p>Информация Фишера — фундаментальное понятие в теории статистики — играет важную роль в оценке параметров статистических моделей. Она представляет собой меру информативности наблюдаемых данных относительно неизвестных параметров модели. В условиях случайного цензурирования, когда часть наблюдений может быть неполной или подвергаться цензурированию, вычисление информации Фишера представляет собой сложную задачу, которая привлекает значительное внимание исследователей. В данной работе вычислена и исследована информация Фишера в модели конкурирующих рисков при неоднородном цензурировании случайным интервалом. Полученные результаты показывают, что при выполнении определенных условий информация Фишера сохраняет свои свойства даже в условиях неполных наблюдений, что имеет важное значение для повышения точности оценки параметров статистических моделей.</p></abstract><trans-abstract xml:lang="en"><p>Fisher information is a fundamental concept in the theory of statistical inference and plays a crucial role in the estimation of parameters in statistical models. It represents a measure of the informativeness of observed data with respect to the unknown parameters of the model. In situations involving random censoring, where some observations may be incomplete or censored, calculating Fisher information becomes a complex task that has garnered significant attention from researchers. In this paper, we compute and investigate the Fisher information in a competing risks model under inhomogeneous random interval censoring. The results obtained indicate that under certain conditions, Fisher information retains its properties even in the presence of incomplete observations, which is crucial for improving the accuracy of parameter estimation in statistical models.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>конкурирующие риски</kwd><kwd>случайное цензурирование</kwd><kwd>информация Фишера</kwd><kwd>момент остановки</kwd><kwd>нижняя граница Крамера – Рао</kwd></kwd-group><kwd-group xml:lang="en"><kwd>competing risks</kwd><kwd>random censoring</kwd><kwd>Fisher information</kwd><kwd>stopping time</kwd><kwd>Cramér – Rao lower bound</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">Fisher R. A. Theory of Statistical Estimation / Proceedings of the Cambridge Philosophical Society. 1925. P. 700 – 725.</mixed-citation><mixed-citation xml:lang="en">Fisher R. A. 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