Daisuke Yamamoto Tomoki Masuda Shigeki Ohira Katashi Nagao Collaborative Video Scene Annotation Based on Tag Cloud. 397-406 2008 PCM http://dx.doi.org/10.1007/978-3-540-89796-5_41 conf/pcm/2008 db/conf/pcm/pcm2008.html#YamamotoMON08