Bulletin of International Rough Set Society Volume 3, Number 1-2 Editor: S. Tsumoto Managing Editor: Y.Y. Yao Electronic Managing Editor: M. Hadjimichael Table of Contents Papers (from RSDMGrC'98) The Accuracy in Forecasts between Conventional Classifiers and Fuzyy Classifiers: Applications to Physical Checkup Data I-Jen Chiang .................................................... 1 Learning and Adaptability of Neural Networks T.Y. Lin, Jen-Chang Liu, Wen-Liang Hwang and S.K. Chao .......... 7 AKS-ME: A Spatial Data Mining System based on Clustering Byoung-Woo Oh, Jae-Kwan Yun, and Ki-Joon Han .................... 11 Reduct Generation in Information Systems Janusz Starzyk, Dale E. Nelson, and Kirk Sturtz ................. 19 Mining Patient Data for Predictive Rules to Determine Maturity Status of Newborn Children Svetlana Cheshenchuk and Wojciech Ziarko ........................ 23 Survey Paper Methodologies for the Conception, Design and Application of Soft Computing: Reflections on Iizuka'98 James F. Peters, and Sheela Ramanna ............................. 27 Conference Reports and Abstracts EUFIT'98 ........................................................ 36 FT&T'98 (JCIS'98) ............................................... 43 RSDMGrC'98 (JCIS'98) ............................................ 45 AMIA Fall Symposium ............................................. 54 Workshops in PRICAI ............................................. 56 Fifth DAS Workshop .............................................. 58 IRSS Calendar .................................................... 60 Call For Papers .................................................. 62 Instruction to Authors S. Tsumoto ................................................. 64