an accuracy-aware compression technique for multidimensional data cubes
A novel data cube compression technique, based on the well-known LSA method, is presented in this paper, along with its experimental evaluation against state-of-the-art approximate query answering techniques. Particularly, the proposed technique is able to drive the LSA-based compression process in dependence on the accuracy (i.e., the quality of the approximate answers) required from OLAP users/applications, thus drawing new scenarios for delivering summarized knowledge extracted from huge amounts of multidimensional data.
approximate query answering olap data compression techniques