Shashi Shekhar Chang-Tien Lu Pusheng Zhang Rulin Liu Data Mining for Selective Visualization of Large Spatial Datasets. 41-48 2002 conf/ictai/2002 ICTAI http://csdl.computer.org/comp/proceedings/ictai/2002/1849/00/18490041abs.htm db/conf/ictai/ictai2002.html#ShekharLZL02