Slice-based Method for Dynamic Inference Control in OLAP
Qimai Chen · 2013
Aiming at the problem of sensitive information leakage in data warehouse and OLAP system,and the existing inference control methods are based on date cube ignoring the fine-grained slice reasoning.This paper presents an inference control method based on slice.This method refines inference granularity to slice and deals with each query corresponding to slice grid,which can prevent a single slice of reasoning and increases efforts to the protection of sensitive information according to the judgment of the slice grid dependencies’inference channel.