Information filtering method and device, and storage medium storing information filtering program

摘要

In an information filtering method, attributes included in information items are extracted and stored, and ratings relative to the information items carried out by users are stored. The users include a subject user and other users. A relationship between the ratings relative to the information items rated by the subject user and the attributes thereof and a relationship between the ratings relative to the information items rated by the other users and the attributes thereof are utilized for estimating relevances to the subject user of the information items not rated by the subject user. The estimated relevances are used to carry out recommendation or filtering-in of the information item which matches with the subject user.