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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47612/0514-7506-2022-89-5-726-735</article-id><article-id custom-type="elpub" pub-id-type="custom">zhps-1143</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></article-categories><title-group><article-title>ПРИМЕНЕНИЕ МЕТОДА ГЛАВНЫХ КОМПОНЕНТ ДЛЯ АНАЛИЗА ГИСТОГРАММ ЧИСЛА ФОТООТСЧЕТОВ В ЭКСПЕРИМЕНТАХ ФЛУОРЕСЦЕНТНОЙ ФЛУКТУАЦИОННОЙ СПЕКТРОСКОПИИ</article-title><trans-title-group xml:lang="en"><trans-title>PRINCIPAL COMPONENT ANALYSIS OF PHOTON COUNTING HISTOGRAMS IN FLUORESCENCE FLUCTUATION SPECTROSCOPY EXPERIMENTS</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>Скакун</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Skakun</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><email xlink:type="simple">skakun@bsu.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яцков</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Yatskou</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</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>Недервин-Шипперс</surname><given-names>Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Nederveen-Schippers</surname><given-names>L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гронинген</p></bio><bio xml:lang="en"><p>Groningen</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>Кортхольт</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kortholt</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гронинген</p></bio><bio xml:lang="en"><p>Groningen</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>Апанасович</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Apanasovich</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution></aff><aff xml:lang="en"><institution>Belarusian State University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Университет Гронингена</institution></aff><aff xml:lang="en"><institution>University of Groningen</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>26</day><month>09</month><year>2022</year></pub-date><volume>89</volume><issue>5</issue><fpage>726</fpage><lpage>735</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Скакун В.В., Яцков Н.Н., Недервин-Шипперс Л., Кортхольт А., Апанасович В.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Скакун В.В., Яцков Н.Н., Недервин-Шипперс Л., Кортхольт А., Апанасович В.В.</copyright-holder><copyright-holder xml:lang="en">Skakun V.V., Yatskou M.M., Nederveen-Schippers L., Kortholt A., Apanasovich V.V.</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://zhps.ejournal.by/jour/article/view/1143">https://zhps.ejournal.by/jour/article/view/1143</self-uri><abstract><p>Для повышения эффективности анализа гистограмм счета фотонов при изучении молекулярного состава вещества методом флуоресцентной флуктуационной спектроскопии предложен комплексный подход, основанный на применении методов интеллектуального анализа данных. Для проверки гипотезы о разделимости кластеров многомерных экспериментальных данных используется метод главных компонент. Исследована причина сжатия облака данных в характеристическую нелинейность, или так называемое дугообразное облако, в пространстве первых двух главных компонент. Рассмотрены примеры смоделированных наборов данных молекулярных систем различных яркостей и концентраций. Нелинейные эффекты усложняют интерпретацию и последующий количественный анализ данных. Установлено, что дугообразность облака данных — следствие наличия значительной вариации одного или нескольких физических параметров, в частности, результат значительного увеличения разброса яркости или концентрации молекул. Данные параметры могут служить дополнительными показателями при оценке качества экспериментов, если изучается только один тип молекулы, и при описании исследуемой системы — в случае смеси молекул разных видов. Предложено использовать нормировку локального взвешенного сглаживания диаграммы рассеяния для устранения нелинейных эффектов в пространстве главных компонент.</p></abstract><trans-abstract xml:lang="en"><p>An integrated approach based on the use of data mining methods has been proposed to improve the efficiency of the analysis of photon counting histograms in the study of the molecular composition of a substance by the method of fluorescence fluctuation spectroscopy. The method of principal components is used to test the hypothesis about the cluster separability of multidimensional experimental data. The reason for the compression of a point cloud into a characteristic nonlinearity, or so-called arc-shaped cloud, in the space of first two principal components is investigated. Examples of simulated data sets on some selected molecular systems of various brightness and concentration are considered. Nonlinear effects complicate interpretation and subsequent quantitative analysis of data. It has been established that the arching of the data cloud is a consequence of the presence of a significant variation in one or more physical parameters. In particular, it is the result of a significant increase in the variation in the parameters of the brightness or concentration of molecules. These parameters can be as additional measure in assessing the quality of the experiments if only one type of molecule is studied, and also can be used for characterizing the system under study in the case of a mixture of molecules of different types. It is proposed to apply the locally weighted scatterplot smoothing normalization to eliminate the nonlinear effects in the space of principal components.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>флуоресцентная флуктуационная спектроскопия</kwd><kwd>гистограмма числа фотоотсчетов</kwd><kwd>имитационное моделирование</kwd><kwd>метод главных компонент</kwd><kwd>нормировка локального взвешенного сглаживания</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fluorescence fluctuation spectroscopy</kwd><kwd>photon counting histogram</kwd><kwd>simulation modelling</kwd><kwd>principal component analysis</kwd><kwd>local weighted scatterplot smoothing normalization</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">E. L. Elson, D. Magde. Biopolymers, 13, N 1 (1974) 1—27, doi:10.1002/BIP.1974.360130102</mixed-citation><mixed-citation xml:lang="en">E. L. Elson, D. Magde. 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