notes

Rough set:    http://folli.loria.fr/cds/1999/library/pdf/skowron.pdf

                          http://www.nit.eu/czasopisma/JTIT/2002/3/7.pdf

Database marketing

customer segmentation & classification

profile analysis

cross selling

churn analysis

credit scoring

fraud detection

data smoothing: http://www.vanguardsw.com/DpHelp4/dph00109.htm