Organization and materialization strategies of multidimensional views in railway freight transportation data warehouse
Lin You · Journal of the China Railway Society · 2001
Organizing the multidimensional views properly and selecting a set of views to be materialized is an effective way to improve query performances of data warehouse. In this paper, according to our research on data warehouse prototype of railway freight transportation, we discuss a composite lattice structure of multidimensional data cube and its materialization strategy. We introduce a greedy algorithm and a space boundary algorithm. We also propose a new view benefit model used in space boundary algorithm.