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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Доклады Академии наук</journal-id><journal-title-group><journal-title xml:lang="en">Доклады Академии наук</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Академии наук</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-5652</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">17782</article-id><article-id pub-id-type="doi">10.31857/S0869-56524885481-485</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Mathematics</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Математика</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Construction of three-dimensional sections of the efficient frontier for non-convex models</article-title><trans-title-group xml:lang="ru"><trans-title>Построение трёхмерных сечений эффективного фронта для невыпуклых моделей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Krivonozhko</surname><given-names>V. E.</given-names></name><name xml:lang="ru"><surname>Кривоножко</surname><given-names>В. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>krivonozhkove@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lychev</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Лычев</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lychev@misis.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Blokhina</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Блохина</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nsb_sapr@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National University of Science and Technology MISiS</institution></aff><aff><institution xml:lang="ru">"Национальный исследовательский технологический университет МИСиС"</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Federal Research Center Computer Science and Control of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральный исследовательский центр “Информатика и управление” Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Moscow State University of Civil Engineering (National Research University)</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский Московский государственный строительный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-10-20" publication-format="electronic"><day>20</day><month>10</month><year>2019</year></pub-date><volume>488</volume><issue>5</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>481</fpage><lpage>485</lpage><history><date date-type="received" iso-8601-date="2019-11-16"><day>16</day><month>11</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-11-16"><day>16</day><month>11</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Russian academy of sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Российская академия наук</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Russian academy of sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-5652/article/view/17782">https://journals.eco-vector.com/0869-5652/article/view/17782</self-uri><abstract xml:lang="en"><p>Non-convex Free Disposal Hull (FDH) model was proposed in the scientific literature in the end of 20-th century for performance measurement of complex multidimensional production units. FDH model was proposed almost simultaneously with DEA (Data Envelopment Analysis) model. However, as distinct from the DEA models, production possibility set of FDH models are non-convex ones, what significantly refrained the development of these models. As far as we know, the necessity for such approach has been noted in the world scientific literature for a long time. In this paper, an approach is proposed for three-dimensional visualization of FDH models. An approach was tested using real-life data sets from different areas. Computational experiments confirm reliability and effectiveness of the proposed approach.</p></abstract><trans-abstract xml:lang="ru"><p>Невыпуклая модель FDH (Free Disposal Hull) появилась в научной литературе в конце прошлого века для анализа деятельности сложных многомерных объектов. Модель FDH появилась почти одновременно с моделью DEA (Data Envelopment Analysis). Однако в отличие от модели DEA множество производственных возможностей модели FDH является невыпуклым, что существенно сдерживало развитие и применение модели FDH. Необходимость методов трёхмерной визуализации для анализа деятельности сложных нелинейных моделей была давно отмечена в мировой научной литературе. В данной работе предлагается метод для построения трёхмерных сечений в моделях FDH. Метод был опробован на реальных моделях из различных областей и показал высокую эффективность и надёжность.</p></trans-abstract><kwd-group xml:lang="en"><kwd>efficient frontier</kwd><kwd>Free Disposal Hull (FDH)</kwd><kwd>visualization</kwd><kwd>production possibility set</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эффективный фронт</kwd><kwd>невыпуклая модель</kwd><kwd>визуализация</kwd><kwd>множество производственных возможностей</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was funded by a grant from the Russian Science Foundation (project No. 17-11-01353).</funding-statement><funding-statement xml:lang="ru">Исследование выполнено за счёт гранта Российского научного фонда (проект № 17-11-01353).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Deprins D., Simar L., Tulkens H. Measuring labor efficiency in post offices. In: M. Marchand, P. Pestieau, H. Tulkens (Eds.). 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