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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">mais</journal-id><journal-title-group><journal-title xml:lang="ru">Моделирование и анализ информационных систем</journal-title><trans-title-group xml:lang="en"><trans-title>Modeling and Analysis of Information Systems</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-1015</issn><issn pub-type="epub">2313-5417</issn><publisher><publisher-name>Yaroslavl State University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18255/1818-1015-2013-2-80-91</article-id><article-id custom-type="elpub" pub-id-type="custom">mais-207</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>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>Единая модель для геоклассификации веб-сайтов</article-title><trans-title-group xml:lang="en"><trans-title>Unified Classification Model for Geotagging Websites</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>Волков</surname><given-names>Алексей Николаевич</given-names></name><name name-style="western" xml:lang="en"><surname>Volkov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>разработчик программного обеспечения,</p><p>119021, Россия, г. Москва, ул. Льва Толстого, д. 16;</p><p>аспирант</p></bio><bio xml:lang="en"><p>разработчик программного обеспечения,</p><p>Leo Tolstoy St., 16, Moscow, 119021, Russia</p></bio><email xlink:type="simple">ark-kum@yandex-team.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Яндекс»;&#13;
Московский Физико-Технический Институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yandex LLC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>20</day><month>04</month><year>2013</year></pub-date><volume>20</volume><issue>2</issue><fpage>80</fpage><lpage>91</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Волков А.Н., 2013</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="ru">Волков А.Н.</copyright-holder><copyright-holder xml:lang="en">Volkov A.N.</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.mais-journal.ru/jour/article/view/207">https://www.mais-journal.ru/jour/article/view/207</self-uri><abstract><p>Работа представляет новый подход к задаче определения регионального фокуса веб-сайтов (геоклассификации). В отличие от традиционных подходов к многозначной классификации, когда для каждого класса (региона) обучается по отдельной классификационной модели, предлагаемый подход основан на обучении всего одной модели, которая используется для всех регионов одного типа (например, для городов). Такой подход становится возможным благодаря использованию "относительных" факторов, которые показывают, как некоторый выбранный регион соотносится с другими регионами для заданного веб-сайта. Классификатор задействует большой набор разнородных факторов, которые до этого момента не использовались вместе для геоклассификации веб-сайтов с применением машинного обучения. Оценка качества демонстрирует преимущество нашего подхода "по одной модели на тип региона" перед традиционным подходом "по одной модели на регион". Отдельный эксперимент демонстрирует способность описываемого классификатора успешно детектировать регионы, которые отсутствовали в обучающей выборке (что невозможно при использовании традиционных подходов).</p></abstract><trans-abstract xml:lang="en"><p>The paper presents a novel approach to finding regional scopes (geotagging) of websites. Unlike the traditional approaches, which generally involve training a separate classification model for each class (region), the proposed method is based on training a single model which is used for all regions of the same type (e.g. cities). This approach is made possible by the usage of ”relative” features which indicate how a selected region matches up to other regions for a given website. The classification system uses a variety of features of different nature that have not been yet used together for machine-learning based regional classification of websites. The evaluation demonstrates the advantage of our ”one model per region type” method versus the traditional ”one model per region” approach. A separate experiment demonstrates the ability of the proposed classifier to successfully detect regions which were not present in the training set (which is impossible for traditional approaches).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>геоклассификация</kwd><kwd>машинное обучение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>geotagging</kwd><kwd>classification models</kwd><kwd>machine learning</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">Amitay E., Har’El N., Sivan R., and A. Soffer. Web-a-where: geotagging web content. SIGIR. ACM, 2004. P. 273–280.</mixed-citation><mixed-citation xml:lang="en">Amitay E., Har’El N., Sivan R., and A. Soffer. Web-a-where: geotagging web content. SIGIR. ACM, 2004. 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