Shohei Hido Tsuyoshi Idé Hisashi Kashima Harunobu Kubo Hirofumi Matsuzawa Unsupervised Change Analysis Using Supervised Learning. 148-159 2008 PAKDD http://dx.doi.org/10.1007/978-3-540-68125-0_15 conf/pakdd/2008 db/conf/pakdd/pakdd2008.html#HidoIKKM08