Abstract: This paper proposed a matrix-based iceberg construction method called MICC, in order to reduce the space Consumption during the full materialization for a data cube. Users' interests arc considered as the standard to construct an iceberg cube. On the basis of the result of MICC, the paper proposed an incremental update method to dynamically update the iceberg cube while the users' interests are changing. An experiment proves the efficiency and accuracy of these two methods MICC and ICIU.

Key words: Interest, Iceberg cube, Frequent cuboid,Incremental update