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VELICHKA TRANEVA,VESSELINA BUREVA,EVDOKIA SOTIROVA,KRASSIMIR ATANASSOV 장전수학회 2017 Advanced Studies in Contemporary Mathematics Vol.27 No.2
In this paper, we present an index matrix interpretation of the On-Line Analytal Processing (OLAP) cube. The aim is to present the basic OLAP operations with similar operations from the index matrix theory. The operations are discussed in terms of relational algebra and multidimensional models.
Aggregation operations over 3-dimensional extended index matrices
Velichka Traneva,Evdokia Sotirova,Vesselina Bureva,Krassimir Atanassov 장전수학회 2015 Advanced Studies in Contemporary Mathematics Vol.25 No.3
In this paper we introduce new operations over 3D-extended index matrices, which generalized dened operations over other types of index matrices.