Finding aggregate nearest neighbor efficiently without indexing.

Yanmin Luo Kazutaka Furuse Hanxiong Chen Nobuo Ohbo Finding aggregate nearest neighbor efficiently without indexing. 48 2007 Infoscale http://doi.acm.org/10.1145/1366804.1366866 conf/infoscale/2007 db/conf/infoscale/infoscale2007.html#LuoFCO07