{"id":6979,"date":"2021-05-05T12:32:28","date_gmt":"2021-05-05T10:32:28","guid":{"rendered":"https:\/\/www.l3s.de\/?page_id=6979"},"modified":"2023-01-11T14:16:38","modified_gmt":"2023-01-11T13:16:38","slug":"science-video-search-engine","status":"publish","type":"page","link":"https:\/\/www.l3s.de\/de\/magazine\/binaire-articles\/science-video-search-engine\/","title":{"rendered":"Suchmaschine f\u00fcr Wissenschaftsvideos"},"content":{"rendered":"
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Foto: \u00a9Caio \u2013 stock.adobe.com<\/span><\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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Ausgabe: 02\/2021<\/p>\n <\/div>\n <\/div>\n

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Digitales Lernen<\/span><\/a>\n <\/span>\n <\/div>\n <\/div>\n
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Suchmaschine f\u00fcr Wissenschaftsvideos<\/h1>\n <\/div>\n <\/div>\n
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Videos haben in der Wissenschaftskommunikation eine lange Tradition. Mit den sozialen Medien hat sich dieser Trend weiter verst\u00e4rkt. Die Technische Informationsbibliothek betreibt ein Portal f\u00fcr audiovisuelle Medien, das wissenschaftliche Filme und Videos aus der Hochschullehre b\u00fcndelt. Das Ziel des TIB AV-Portals<\/em>: professionelles Hosting und die semantische Erschlie\u00dfung wissenschaftlicher Videos zu Recherchezwecken.<\/p>\n

\u00dcber 30.000 qualit\u00e4tsgepr\u00fcfte wissenschaftliche Videos stellt das Portal derzeit bereit - vorwiegend aus Technik und Naturwissenschaften und unter Creative-Commons-Lizenzen. Darunter befinden sich Computervisualisierungen, Lernvideos, Simulationen, Experimente, Interviews sowie Vorlesungs- und Konferenzaufzeichnungen. Die Videos lassen sich inhaltlich durchsuchen und relevante Abschnitte segmentgenau aufrufen. Damit sie langfristig zur Verf\u00fcgung stehen und sekundengenau referenziert werden k\u00f6nnen, werden die Videos langzeitarchiviert und erhalten einen Digital Object Identifier <\/em>(DOI) und einen Media Fragment Identifier <\/em>(MFID). Automatisierte Analyseverfahren k\u00f6nnen Videos feingranular und zeitbasiert erschlie\u00dfen: Zum Einsatz kommen die zeitliche Segmentierung, Keyframe-basierte Texterkennung, Spracherkennung zur Erstellung von Audiotranskripten, Annotation mit vordefinierten visuellen Konzepten sowie die semantische Analyse und fachspezifische Verschlagwortung der Videoinhalte.<\/p>\n

Im DFG-gef\u00f6rderten Projekt TIB AV Analytics <\/em>sind Wissenschaftler der TIB seit Januar 2021 dabei, das TIB AV Portal <\/em>um eine webbasierte Plattform f\u00fcr die systematische Film- und Videoanalyse zu erweitern. TIB AV Analytics <\/em>soll Medien- und Filmwissenschaftlern, aber auch Forschern aus anderen Disziplinen erm\u00f6glichen, State-of-the-Art-Algorithmen f\u00fcr die automatische Videoanalyse auf einzelne Videos oder Videosammlungen anzuwenden und die Ergebnisse mittels interaktiver Informationsvisualisierungen auszuwerten. Zu den Analyseverfahren geh\u00f6rt die automatische Erkennung von Einstellungs- und Szenengrenzen oder auch von Objekten, Orten und Personen.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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Vorgestellte Projekte<\/h6>\n <\/div>\n <\/div>\n
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Kontakt<\/h6>\n <\/div>\n <\/div>\n
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Margret Plank<\/h6>\n <\/div>\n <\/div>\n
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margret.plank@tib.eu<\/span><\/a>\n <\/span>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n
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Margret Plank leitet das Labor f\u00fcr nicht-textuelle Materialien<\/em> an der TIB \u2013 Leibniz Informationszentrum Technik und Naturwissenschaften<\/em>, das Infrastrukturen und Tools f\u00fcr nicht-textuelle Formate wie Video, Grafiken und Forschungsdaten entwickelt.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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Prof. Dr. Ralph Ewerth<\/h6>\n <\/div>\n <\/div>\n
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L3S-Mitglied Ralph Ewerth ist Professor an der LUH und leitet die TIB-Forschungsgruppe Visual Analytics. <\/em>Er forscht u. a. zu den Themen Multimedia Retrieval und Digitales Lernen.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Foto: \u00a9Caio \u2013 stock.adobe.com Issue: 02\/2021 Digitales Lernen Science video search engine Videos have a long tradition in science communication. With social media, this trend has intensified further. The German National Library of Science and Technology operates a portal for audiovisual media that bundles scientific films and videos from university teaching. The goal of the TIB […]<\/p>","protected":false},"author":7,"featured_media":6980,"parent":2750,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/full-width-page.php","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[28,80],"class_list":["post-6979","page","type-page","status-publish","has-post-thumbnail","hentry","tag-binaire","tag-binaire-2021-02"],"acf":[],"aioseo_notices":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-25 22:55:02","action":"category","newStatus":"draft","terms":[75],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/pages\/6979","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/comments?post=6979"}],"version-history":[{"count":0,"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/pages\/6979\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/pages\/2750"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/media\/6980"}],"wp:attachment":[{"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/media?parent=6979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/categories?post=6979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.l3s.de\/de\/wp-json\/wp\/v2\/tags?post=6979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}