Computing, Telecommunication and Control Информатика, телекоммуникации и управление 2687-0517 29 Aprioristic methods of the estimation for aggregation degree and productivity of calculations in data warehouse Методы априорной оценки степени агрегации и производительности запросов в хранилищах данных Popkova Alla infalla@bk.ru Fomicheva Svetlana levikha@rambler.ru 10 06 2010 3 101 182 190

In given article the approach to an aprioristic estimation of data aggregation degree for a multidimensional hypercube and a technique of increase in speed of performance of analytical inquiries with low and average selectivity for the account of reduction for the computing expenses connected with aggregation of the generalised data is offered.

 data warehouse OLAP-technology aggregation degree of data the directed graph productivity of calculation