S. Sae-ueng, S.Pinyapong, A.Ogino, T. Kato; Consumer friendly Shopping Assistan-ce by Personal BehaviorLog Analysis on Ubiquitous Shop Space, proceeding of 2nd IEEE Asia-Pacific Services ComputerConference; APSCCS2007, pp. 496-503,(2007)
S. Sae-ueng, S.Pinyapong, A.Ogino, T. Kato; Modeling personal preference using shopping behaviors in ubiquitous information environment; proceeding of 18th IEICE data engineering workshop/5th DBSJ annual meeting (DEWS2007),(2007)