DEIM Forum 2012 B4-1 700 8530 3-1-1 700 8530 3-1-1 E-mail:, {yoshio,ohta}@de.cs.okayama-u.ac.jp YouTube YouTube ( ) YouTube A recommendation system for unexpected videos using user connections Toru YOSHIO and Manabu OHTA Faculty of Engineering, Okayama University 3-1-1, Tsushima-naka, Kita-ku, Okayama, 700 8530 Japan Graduate School of Natural Science and Technology, Okayama University 3-1-1, Tsushima-naka, Kita-ku, Okayama, 700 8530 Japan E-mail:, {yoshio,ohta}@de.cs.okayama-u.ac.jp Key words Video recommendation YouTube User connection 1. YouTube [1] 2011 5 1 7 [2] [3] [4] [3] YouTube 3 2 3 4 5 2. YouTube tf-idf [5] YouTube Data API [6] 15
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3 2 YouTube 4.2 3. 2 3.1.2 ChaSen [11] the for how termmi [12] 3. 2. 1 termmi termmi Perl TermExtract [13] [14] termmi [12] 3. 2. 2 termmi 0 1 0 1 termmi 1 0 0.6 0.3 0.3 0.1 4.1 3. 3 3. 3. 1 ( ) ( ) 2 3 3 User Fav ( ) CSn CSr Frd 3 20 5
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2 ( ) ( ) Google YouTube 2 [1] YouTube : http://www.youtube.com/ [2] Thanks, YouTube community, for two BIG gifts on our sixth birthday! : http://youtube-global.blogspot.com/2011/05/thanks-youtubecommunity-for-two-big.html [3], (1),, Vol22, No6, pp.826-837(2007) [4],,,, Weblog,. B, J88-B(7), 1258-1266, 2005 [5],,, tf-idf,. AI, 109(439), 7-10, 2010 [6] YouTube API : http://code.google.com/intl/ja/apis/youtube/overview.html [7],,, DEIM Forum 2010 A3-1 [8],,, YouTube,. ( 6 ), 2011 [9] : http://www.nicovideo.jp/ [10] : https://groups.google.com/a/googleproductforums.com/forum / topic/youtube-ja/uklbezsg8eo [11] : http://chasen.naist.jp/hiki/chasen/ [12] Windows Termmi : http://gensen.dl.itc.u-tokyo.ac.jp/termmi.html [13] Perl TermExtract : http://gensen.dl.itc.u-tokyo.ac.jp/termextract.html [14] : http://gensen.dl.itc.u-tokyo.ac.jp/#sys [15] Bing API : http://www.bing.com/toolbox/bingdeveloper/ [16] YouTube : http://dame3212.net/?p=2993