Deputy Mechanism for OLAP over Imprecise Data and Composite Measure

Dealing with imprecise data and composite measure is widely recognized to be the important problem, respectively and has received increasing attention. However, the complexity of queries required to support OLAP applications makes it difficult to implement using standard relational database technoloty. Moreover, there is currently no data model for OLAP to handle both imprecise data and composite measure. In this paper, we extend the OLAP data model using deputy mechanism and propose some operators to support those OLAP applications. To our knowledge this is the first paper to handle both imprecise data and composite measure in an OLAP setting.