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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">10.26896/1028-6861-2023-89-10-25-33</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-2033</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>АНАЛИЗ ВЕЩЕСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SUBSTANCES ANALYSIS</subject></subj-group></article-categories><title-group><article-title>Характеризация коньяков и виноградных бренди по спектрам флуоресценции, обработанным с помощью методов машинного обучения</article-title><trans-title-group xml:lang="en"><trans-title>Characterization of cognacs and grape brandies by fluorescence spectra processed using machine learning methods</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>Саакян</surname><given-names>А. B.</given-names></name><name name-style="western" xml:lang="en"><surname>Sahakyan</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Арам Ваганович Саакян</p><p>141701, Московская область, Долгопрудный, Институтский пер., д. 9</p></bio><bio xml:lang="en"><p>Aram V. Sahakyan</p><p>9, Institutsky per., Dolgoprudny, Moscow obl., 141701</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аленичев</surname><given-names>М. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Alenichev</surname><given-names>M. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Константинович Аленичев </p><p>119361, Москва, ул. Озерная, д. 46</p></bio><bio xml:lang="en"><p>Mikhail K. Alenichev</p><p>46, Ozernaya ul., Moscow, 119361</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Левин</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Levin</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Давидович Левин</p><p>141701, Московская область, Долгопрудный, Институтский пер., д. 9; 119361, Москва, ул. Озерная, д. 46</p><p> </p><p> </p></bio><bio xml:lang="en"><p>Alexander D. Levin</p><p>9, Institutsky per., Dolgoprudny, Moscow obl., 141701; 46, Ozernaya ul., Moscow, 119361</p></bio><email xlink:type="simple">levin-ad@vniiofi.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский физико-технический институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Institute of Physics and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт оптико-физических измерений</institution><country>Россия</country></aff><aff xml:lang="en"><institution>All Russian Scientific and Research institute for Optical and Physical Measurements</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Московский физико-технический институт; &#13;
Всероссийский научно-исследовательский институт оптико-физических измерений</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Institute of Physics and Technology; &#13;
All Russian Scientific and Research institute for Optical and Physical Measurements</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>25</day><month>10</month><year>2023</year></pub-date><volume>89</volume><issue>10</issue><fpage>25</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Саакян А.B., Аленичев М.К., Левин А.Д., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Саакян А.B., Аленичев М.К., Левин А.Д.</copyright-holder><copyright-holder xml:lang="en">Sahakyan A.V., Alenichev M.K., Levin A.D.</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/2033">https://www.zldm.ru/jour/article/view/2033</self-uri><abstract><p>Предложен метод экспрессной характеризации коньяков и виноградных бренди на примере их классификации по географическому происхождению, который основан на использовании информативных фрагментов спектров флуоресценции образцов различного географического происхождения и их обработке с помощью алгоритмов машинного обучения. В качестве информативных были отобраны три вида флуоресцентных спектров: синхронного сканирования при разности длин волн 50 нм, эмиссии при длинах волн возбуждения 250 и 280 нм. Эти спектры были зарегистрированы для 43 образцов коньяков и виноградных бренди, которые по географическому происхождению были разделены на три класса — регионы Российской Федерации, кроме Дагестана, Республика Дагестан и Республика Армения. Из исследованных образцов были сформированы обучающий набор из 33 образцов и тестовый набор из 10 образцов. Для обучения моделей был выбран экстремальный градиентный бустинг — один из современных алгоритмов машинного обучения, пригодный при ограниченном числе образцов в обучающем наборе. Правильность распознавания образцов тестового набора (состоящего из 10 образцов, не использованных при обучении) составила 100 % для моделей на основе спектров эмиссии при длинах волн возбуждения 250 и 280 нм и синхронного сканирования. Полученные результаты демонстрируют принципиальную возможность использования информативных фрагментов спектров флуоресценции в сочетании с машинным обучением для характеризации коньяков и виноградных бренди, в том числе, для их классификации по географическому происхождению. Однако применение этого метода в регламентированных процедурах контроля продукции возможно только для коньяков и виноградных бренди с защищенным географическим наименованием (указанием места происхождения). Изложенный подход может быть также использован для классификации других жидких пищевых продуктов (соков, меда и т.п.).</p></abstract><trans-abstract xml:lang="en"><p>A method for express characterization of cognacs and grape brandies is proposed in the case study of their classification by geographical origin. The method is based on the use of informative fragments of fluorescence spectra of samples of different geographic origin and their subsequent processing using machine learning algorithms. Three types of fluorescence spectra were selected, i.e., spectra of synchronous scanning at a wavelength difference of 50 nm, and emission spectra at an excitation wavelength of 250 and 280 nm. These spectra were measured for 43 samples of cognacs and grape brandies, which were divided into 3 classes according to their geographical origin, the regions of the Russian Federation (except for Dagestan), the Republic of Dagestan (Russian Federation), and the Republic of Armenia. A training set consisting of 33 samples and a test set consisting of 10 samples were formed from the samples under study. To train the models, an extreme gradient boosting, one of the modern machine learning algorithms, was chosen as suitable for a limited number of samples in the training set. The correctness of the sample recognition of the test set (consisting of 10 samples not used in training) was 100% for models based on emission spectra and spectra of synchronous scanning. The results obtained demonstrate the fundamental possibility of using informative fragments of fluorescence spectra in combination with machine learning to characterize cognacs and grape brandies, including their classification by the geographical origin. However, the use of this method in regulated procedures of the product control is possible only for cognacs and grape brandies with a protected geographical indication (designation of the origin). The above approach can also be used to classify other liquid food products (juices, honey, etc.).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>флуоресценция</kwd><kwd>хемометрика</kwd><kwd>машинное обучение</kwd><kwd>эмиссионные спектры</kwd><kwd>коньяк</kwd><kwd>классификация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fluorescence</kwd><kwd>chemometrics</kwd><kwd>machine learning</kwd><kwd>emission spectra</kwd><kwd>brandy</kwd><kwd>classification</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">Теневой рынок алкогольной продукции: исследование Центра развития потребительского рынка Московской школы управления Сколково и Центра социального проектирования «Платформа». https://sk. skolkovo.ru/storage/file_storage/b28ed58b-cc05-4c31-8e97-48c0dac647e0/SKOLKOVO_CMDC_Shadow_alcohol_market_Full_Report_Rus.pdf (дата обращения 13 февраля 2023 г.).</mixed-citation><mixed-citation xml:lang="en">The shady market of alcoholic beverages: Research of the Center for Consumer Market Development of the Moscow School of Management Skolkovo and the Center for Social Design «Platform». https://sk.skolkovo.ru/storage/file_storage/b28ed58b-cc05-4c31-8e97-48c0dac647e0/SKOLKOVO_CMDC_Shadow_alcohol_market_Full_Report_Rus.pdf (accessed February 13, 2023) [in Russian].</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Coetzee P., van Jaarsveld F., Vanhaecke F. 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