{"id":33865,"date":"2019-10-31T21:55:06","date_gmt":"2019-10-31T18:55:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/microsoft-otkryl-kod-biblioteki-vektornogo-poiska-ispolzuemoj-v-bing\/"},"modified":"2019-10-31T21:55:06","modified_gmt":"2019-10-31T18:55:06","slug":"microsoft-otkryl-kod-biblioteki-vektornogo-poiska-ispolzuemoj-v-bing","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/microsoft-otkryl-kod-biblioteki-vektornogo-poiska-ispolzuemoj-v-bing","title":{"rendered":"Microsoft otworzy\u0142 kod biblioteki wektorowego wyszukiwania, u\u017cywanej w Bing","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Firma Microsoft <noindex><a rel=\"nofollow\" href=\"https:\/\/blogs.microsoft.com\/ai\/bing-vector-search\/\">opublikowa\u0142a<\/a><\/noindex> \u017ar\u00f3d\u0142owe teksty biblioteki uczenia maszynowego <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Microsoft\/SPTAG\">SPTAG<\/a><\/noindex> (Space Partition Tree And Graph) z implementacj\u0105 algorytmu przybli\u017conego <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%97%D0%B0%D0%B4%D0%B0%D1%87%D0%B0_%D0%BF%D0%BE%D0%B8%D1%81%D0%BA%D0%B0_%D0%B1%D0%BB%D0%B8%D0%B6%D0%B0%D0%B9%D1%88%D0%B5%D0%B3%D0%BE_%D1%81%D0%BE%D1%81%D0%B5%D0%B4%D0%B0\">wyszukiwania najbli\u017cszego s\u0105siada<\/a><\/noindex>. Biblioteka <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ailab.microsoft.com\/vectorsearchexperiment\">zosta\u0142a opracowana<\/a><\/noindex> w jednostce badawczej Microsoft Research i centrum rozwoju technologii wyszukiwania (Microsoft Search Technology Center). W praktyce SPTAG jest wykorzystywana w wyszukiwarce Bing do okre\u015blania najbardziej relewantnych wynik\u00f3w z uwzgl\u0119dnieniem kontekstu zapyta\u0144. Kod napisano w j\u0119zyku C++ i <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/Microsoft\/SPTAG\">rozpowszechniany<\/a><\/noindex> jest obj\u0119ty licencj\u0105 MIT. Obs\u0142ugiwana jest kompilacja dla Linux i Windows. Dost\u0119pna jest r\u00f3wnie\u017c obudowa dla j\u0119zyka Python.<\/p>\n<p>Mimo \u017ce pomys\u0142y na zastosowanie zbiornik\u00f3w wektorowych w wyszukiwarkach istniej\u0105 od d\u0142u\u017cszego czasu, ich wdro\u017cenie w praktyce utrudnia du\u017ce zu\u017cycie zasob\u00f3w zwi\u0105zane z operacjami na wektorach oraz ograniczenia w skalowalno\u015bci. Po\u0142\u0105czenie metod g\u0142\u0119bokiego uczenia maszynowego z algorytmami przybli\u017conego wyszukiwania najbli\u017cszego s\u0105siada pozwoli\u0142o osi\u0105gn\u0105\u0107 wydajno\u015b\u0107 i skalowalno\u015b\u0107 system\u00f3w wektorowych na poziomie akceptowanym przez du\u017ce wyszukiwarki. Na przyk\u0142ad w Bing dla wektora indeksu przekraczaj\u0105cego 150 miliard\u00f3w wektor\u00f3w czas wybierania najbardziej relewantnych wynik\u00f3w wynosi 8 ms.<\/p>\n<p>Biblioteka zawiera narz\u0119dzia do budowy indeksu oraz organizacji wyszukiwania wektor\u00f3w, a tak\u017ce zestaw narz\u0119dzi do wsparcia rozproszonego systemu wyszukiwania online, obejmuj\u0105cego bardzo du\u017ce kolekcje wektor\u00f3w. <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/microsoft\/SPTAG\/blob\/master\/docs\/GettingStart.md\">Oferowane s\u0105<\/a><\/noindex> nast\u0119puj\u0105ce modu\u0142y: index builder do indeksowania, searcher do wyszukiwania z wykorzystaniem indeksu, rozproszonego w klastrze z wieloma w\u0119z\u0142ami, serwer do uruchamiania procesor\u00f3w na w\u0119z\u0142ach, Aggregator do \u0142\u0105czenia kilku serwer\u00f3w w ca\u0142o\u015b\u0107 oraz klient do wysy\u0142ania zapyta\u0144. Obs\u0142ugiwane jest dodawanie nowych wektor\u00f3w do indeksu oraz usuwanie wektor\u00f3w w locie.<\/p>\n<p>Biblioteka zak\u0142ada, \u017ce przetwarzane i przedstawiane w kolekcji dane s\u0105 sformatowane jako powi\u0105zane wektory, kt\u00f3re mo\u017cna por\u00f3wnywa\u0107 na podstawie <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%95%D0%B2%D0%BA%D0%BB%D0%B8%D0%B4%D0%BE%D0%B2%D0%B0_%D0%BC%D0%B5%D1%82%D1%80%D0%B8%D0%BA%D0%B0\">odleg\u0142o\u015bci euklidesowych<\/a><\/noindex> (L2) lub <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9A%D0%BE%D1%8D%D1%84%D1%84%D0%B8%D1%86%D0%B8%D0%B5%D0%BD%D1%82_%D0%9E%D1%82%D0%B8%D0%B0%D0%B8\">cosinusowych<\/a><\/noindex> odleg\u0142o\u015bci. Przy zapytaniu wyszukiwawczym zwracane s\u0105 wektory, kt\u00f3rych odleg\u0142o\u015b\u0107 od pierwotnego wektora jest minimalna. W SPTAG oferowane s\u0105 dwie metody organizacji przestrzeni wektorowej: SPTAG-KDT (drzewo K-wymiarowe (<noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/K-%D0%BC%D0%B5%D1%80%D0%BD%D0%BE%D0%B5_%D0%B4%D0%B5%D1%80%D0%B5%D0%B2%D0%BE\">kd-tree<\/a><\/noindex>) i <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%93%D1%80%D0%B0%D1%84_%D0%BE%D1%82%D0%BD%D0%BE%D1%81%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D1%85_%D0%BE%D0%BA%D1%80%D0%B5%D1%81%D1%82%D0%BD%D0%BE%D1%81%D1%82%D0%B5%D0%B9\">graf wzgl\u0119dnych s\u0105siedztw<\/a><\/noindex>) oraz SPTAG-BKT (drzewo k-\u015brednich (<noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9C%D0%B5%D1%82%D0%BE%D0%B4_k-%D1%81%D1%80%D0%B5%D0%B4%D0%BD%D0%B8%D1%85\">k-means tree<\/a><\/noindex> i graf relatywnych s\u0105siedztw). Pierwsza metoda wymaga mniej zasob\u00f3w podczas pracy z indeksem, a druga wykazuje wy\u017csz\u0105 dok\u0142adno\u015b\u0107 wynik\u00f3w wyszukiwania przy bardzo du\u017cych kolekcjach wektor\u00f3w.<\/p>\n<p>Jednocze\u015bnie wyszukiwanie wektorowe nie ogranicza si\u0119 do tekstu i mo\u017ce by\u0107 stosowane do informacji multimedialnych oraz obraz\u00f3w, a tak\u017ce w systemach automatycznego generowania rekomendacji. Na przyk\u0142ad w jednym z prototyp\u00f3w opartych na frameworku PyTorch zaimplementowano wektorowy system wyszukiwania, kt\u00f3ry uwzgl\u0119dnia\u0142 podobie\u0144stwo obiekt\u00f3w na obrazach, stworzony przy u\u017cyciu danych z kilku standardowych kolekcji obraz\u00f3w zwierz\u0105t, kot\u00f3w i ps\u00f3w, kt\u00f3re zosta\u0142y przekszta\u0142cone w zbiory wektor\u00f3w. Gdy przychodzi obraz do wyszukania, jest on przekszta\u0142cany za pomoc\u0105 modelu uczenia maszynowego w wektor, na podstawie kt\u00f3rego przy u\u017cyciu algorytmu SPTAG z indeksu wybierane s\u0105 najbardziej podobne wektory i jako wynik zwracane s\u0105 zwi\u0105zane z nimi obrazy.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>\u0179r\u00f3d\u0142o: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50698\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Microsoft \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f SPTAG (Space Partition Tree And Graph) \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 \u043f\u0440\u0438\u0431\u043b\u0438\u0437\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u043e\u0438\u0441\u043a\u0430 \u0431\u043b\u0438\u0436\u0430\u0439\u0448\u0435\u0433\u043e \u0441\u043e\u0441\u0435\u0434\u0430. \u0411\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u0430 \u0432 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u043e\u043c \u043f\u043e\u0434\u0440\u0430\u0437\u0434\u0435\u043b\u0435\u043d\u0438\u0438 Microsoft Research \u0438 \u0446\u0435\u043d\u0442\u0440\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u043e\u0438\u0441\u043a\u043e\u0432\u044b\u0445 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439 (Microsoft Search Technology Center). \u041d\u0430 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0435 SPTAG \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0432 \u043f\u043e\u0438\u0441\u043a\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 Bing \u0434\u043b\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0440\u0435\u043b\u0435\u0432\u0430\u043d\u0442\u043d\u044b\u0445 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u0432 \u0441 \u0443\u0447\u0451\u0442\u043e\u043c \u043a\u043e\u043d\u0442\u0435\u043a\u0441\u0442\u0430 \u043f\u043e\u0438\u0441\u043a\u043e\u0432\u044b\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-33865","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Microsoft \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri 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