Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Gotanda Hiromu and Ueda Yoshihiro and Kawasaki Takeshi and Tanaka Nobuyuki,Relations between Sigmoid function′s Polarity and Convergence in B ack Propagetaion Learning,IEICE technical report. Neurocomputing,,"The Institute of Electronics, Information and Communication Engineers",1994,93,,25-32,https://cir.nii.ac.jp/crid/1574231877214207104,