Hanxiong Chen K. Yamamoto Kazutaka Furuse Nobuo Ohbo Supporting Web Search with Near Keywords. 411-415 2007 FSKD (2) http://dx.doi.org/10.1109/FSKD.2007.551 conf/fskd/2007-2 db/conf/fskd/fskd2007-2.html#ChenYFO07