Peerasak Intarapaiboon Ekawit Nantajeewarawat Thanaruk Theeramunkong Information Extraction from Thai Text with Unknown Phrase Boundaries. 525-532 2009 PAKDD http://dx.doi.org/10.1007/978-3-642-01307-2_49 conf/pakdd/2009 db/conf/pakdd/pakdd2009.html#IntarapaiboonNT09