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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">bsuir</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады БГУИР</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady BGUIR</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7648</issn><issn pub-type="epub">2708-0382</issn><publisher><publisher-name>БГУИР</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35596/1729-7648-2023-21-1-66-73</article-id><article-id custom-type="elpub" pub-id-type="custom">bsuir-3566</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>ЭЛЕКТРОНИКА, РАДИОФИЗИКА, РАДИОТЕХНИКА, ИНФОРМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, RADIOPHYSICS, RADIOENGINEERING, INFORMATICS</subject></subj-group></article-categories><title-group><article-title>Алгоритм подготовки набора данных для обучения нейронных сетей на примере задачи анализа радиологических изображений лёгких</article-title><trans-title-group xml:lang="en"><trans-title>The Algorithm for Preparing a Set of Data for Teaching Neural Networks on the Example of the Task to Analyze the Radiological Images of Lungs</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>Косарева</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kosareva</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Косарева Александра Андреевна, ассистент кафедры электронной техники и технологии</p><p>220013, г. Минск, ул. П. Бровки, 6</p><p>+375 17 293-88-60</p></bio><bio xml:lang="en"><p>Kosareva Aleksandra Andreevna, Assistant at the Electronic Engineering and Technology Department</p><p>220013, Minsk, P. Brovka St., 6 </p><p>+375 17 293-88-60</p></bio><email xlink:type="simple">kosareva@bsuir.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет информатики и радиоэлектроники</institution></aff><aff xml:lang="en"><institution>Belarusian State University  of Informatics and Radioelectronics</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>02</day><month>03</month><year>2023</year></pub-date><volume>21</volume><issue>1</issue><fpage>66</fpage><lpage>73</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Косарева А.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Косарева А.А.</copyright-holder><copyright-holder xml:lang="en">Kosareva A.A.</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://doklady.bsuir.by/jour/article/view/3566">https://doklady.bsuir.by/jour/article/view/3566</self-uri><abstract><p>Рассмотрена методика подготовки данных для обучения нейронных сетей на примере решения задач определения модальностей радиологических изображений: трёхмерных изображений компьютерной томографии и двумерных рентгенографических изображений. Предложен алгоритм подготовки данных для обучения свёрточных нейронных сетей. Дана оценка влияния этапов (разметки изображений, нормализации данных, определения динамического диапазона изображения, состава обучающей выборки) алгоритма на результат обучения. Наибольшее влияние при решении задачи проверки модальности оказывает выбор оптимальных значений динамического диапазона. Изменение состава обучающей выборки позволяет повысить точность классификации на 0,0073. При решении задачи проверки модальности изображений компьютерной томографии наибольшее влияние на результат обучения нейронной сети оказывает наличие этапа нормализации данных. Выдвигается предположение о наличии особых признаков изображений этой модальности.</p></abstract><trans-abstract xml:lang="en"><p>The methodology for preparing data for teaching neural networks is considered in solving two problems: checking the modality of computed tomography and checking the modality of radiographic images. The algorithm for preparing data for neural networks training is proposed. The influence of the stages (marking of images, normalization of data, determining the dynamic image range, the composition of the training sample) of the algorithm for the learning result is evaluated. The greatest influence in solving the task of modality verification of modality was the choice of optimal values of the dynamic range. The change in the composition of the training sample made it possible to increase the accuracy of the classification by 0.0073. When solving the task of checking the modality of images of computed tomography, the most impact on the result of the training of the neural network had the stage of data normalization. The assumption is put forward that there are special signs of images of this modality.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>свёрточные нейронные сети</kwd><kwd>подготовка обучающей выборки</kwd><kwd>нормализация данных</kwd><kwd>модальность радиологических изображений</kwd></kwd-group><kwd-group xml:lang="en"><kwd>convolutional neural network</kwd><kwd>training data preparation</kwd><kwd>normalization of data</kwd><kwd>modality of radiological images</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Белорусского республиканского фонда фундаментальных исследований (проект № Т22МВ-026). Автор выражает благодарность и глубокую признательность к. т. н. Эдуарду Витальевичу Снежко; к. т. н., доценту Василию Алексеевичу Ковалёву и к. т. н., доценту Павлу Викторовичу Камлачу за ценные рекомендации и замечания при работе над статьей.</funding-statement><funding-statement xml:lang="en">This work was supported by the Belarusian Republican Foundation for Fundamental Research (project No T22MV-026). The author expresses his gratitude and deep gratitude to Cand. of Sci. Eduard Vitalievich Snezhko; Cand. of Sci., Associate Professor Vassili Alekseevich Kovalev and Cand. of Sci., Associate Professor Pavel Viktorovich Kamlach for valuable advice and comments when working on article.</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">The Cancer Imaging Archive (TCIA): Maintaining and Operating a Public Information Repository / K. Clark [et al.] // Journal of Digital Imaging. 2013. Vol. 26, No 6. 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