Wei Ding 0003 Rachsuda Jiamthapthaksin Rachana Parmar Dan Jiang Tomasz F. Stepinski Christoph F. Eick Towards Region Discovery in Spatial Datasets. 88-99 2008 PAKDD http://dx.doi.org/10.1007/978-3-540-68125-0_10 conf/pakdd/2008 db/conf/pakdd/pakdd2008.html#DingJPJSE08