Topigraphy: visualization for large-scale tag clouds.

Ko Fujimura Shigeru Fujimura Tatsushi Matsubayashi Takeshi Yamada Hidenori Okuda Topigraphy: visualization for large-scale tag clouds. 1087-1088 2008 WWW http://doi.acm.org/10.1145/1367497.1367669 conf/www/2008 db/conf/www/www2008.html#FujimuraFMYO08