{"id":6989,"date":"2020-02-11T12:53:53","date_gmt":"2020-02-11T10:53:53","guid":{"rendered":"https:\/\/www.ftf.or.at\/?p=6989"},"modified":"2020-02-11T12:53:53","modified_gmt":"2020-02-11T10:53:53","slug":"two-methods-for-retrieving-tens-of-billions-of-high-dimensional-features","status":"publish","type":"post","link":"https:\/\/www.ftf.or.at\/?p=6989","title":{"rendered":"Two Methods for Retrieving Tens of Billions of High-Dimensional Features"},"content":{"rendered":"<p><strong>Bj\u00f6rn Th\u00f3r J\u00f3nsson, Associate Professor<\/strong><\/p>\n<p><strong>IT University of Copenhagen, Denmark &amp; Reykjavik University, Iceland<\/strong><\/p>\n<p><strong>02.03.2020 | 10.00 | S.2.42<\/strong><\/p>\n<p><strong>Abstract:<\/strong><\/p>\n<p>Scalable retrieval of high-dimensional feature vectors is an important component of many applications in multimedia and other fields, but also a very challenging problem. In this talk, we discuss the challenges of high-dimensional indexing at scale, and then present two approximate indexing methods designed for large-scale retrieval. We present results from experiments with the two largest feature collections reported in the literature, 28.5 billion SIFT features on a single server and 42.9 billion SIFT features in a distributed setting, and demonstrate an application with interactive retrieval over the 99.2 million images of the YFCC100M collection.<\/p>\n<p><strong>CV:<\/strong><\/p>\n<p>Bjo\u0308rn \u00deo\u0301r Jo\u0301nsson is an Associate Professor at the IT University of Copenhagen, Denmark, and Reykjavi\u0301k University, Iceland. Bjo\u0308rn works in the broad field of Multimedia Analytics, applying multi-dimensional analysis concepts and techniques to large-scale multimedia collections. <a href=\"https:\/\/www.ftf.or.at\/wp-content\/uploads\/2020\/02\/Bj\u00f6rn-3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-6998 alignright\" src=\"https:\/\/www.ftf.or.at\/wp-content\/uploads\/2020\/02\/Bj\u00f6rn-3.jpg\" alt=\"\" width=\"165\" height=\"165\" \/><\/a><\/p>\n<p>Previously, Bj\u00f6rn studied scalability of multimedia retrieval, where he was involved with the two largest feature vector collections reported in the literature. Bjo\u0308rn has a special interest in promoting demonstrations, live events, and reproducibility, e.g. serving as Reproducibility Chair for ACM Multimedia 2019 and 2020. He served as general co-chair for MMM 2017 and CBMI 2019, and will co-organize ACM ICMR 2020 and SISAP 2020.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bj\u00f6rn Th\u00f3r J\u00f3nsson, Associate Professor IT University of Copenhagen, Denmark &amp; Reykjavik University, Iceland 02.03.2020 | 10.00 | S.2.42 Abstract: Scalable retrieval of high-dimensional feature vectors is an important component of many applications in multimedia and other fields, but also &hellip; <a href=\"https:\/\/www.ftf.or.at\/?p=6989\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":27,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-6989","post","type-post","status-publish","format-standard","hentry","category-tewi-kolloquium"],"_links":{"self":[{"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/posts\/6989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/users\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6989"}],"version-history":[{"count":8,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/posts\/6989\/revisions"}],"predecessor-version":[{"id":7001,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/posts\/6989\/revisions\/7001"}],"wp:attachment":[{"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}