\input zb-basic \input zb-ioport \iteman{io-port 70074254} \itemau{Kamishima, Toshihiro; Akaho, Shotaro} \itemti{Dimension reduction for supervised ordering} \itemso{ICDM, 330-339 (2006).} \itemcc{} \itemut{} \itemli{http://doi.ieeecomputersociety.org/10.1109/ICDM.2006.53} \end