Study on method about UIDB creation and refining

In electronic commerce (EC), user interest reflects the behavior set of a users’ group acting on certain impulses. Electronic commerce web stations (ECWS) might be useful for intelligent information technology to create and refine the user interests database (UIDB) to make all kinds of service personalized. Usually two types of information should be included in UIDB. The first is contents of products or services and the second is forms for showing the contents. Both their structures are tangled trees. The issues about how to implement personalized service were investigated, the concepts of user interests and the structure of UIDB are defined, those about ECWS, how to create UIDB by user answers' selections, update and refine UIDB by user’s feedback information are discussed in detail in this paper. By means of UIDB, ECWS can actively recommend suitable series of pre‐sent web pages for different user groups and gradually arrive at their aim: offering personalized service for user groups.