First Advisor

Leonard Shapiro

Date of Publication


Document Type


Degree Name

Master of Science (M.S.) in Computer Science


Computer Science




Computer algorithms, Relational databases, Data warehousing



Physical Description

1 online resource, (59p.)


A data warehouse is a stand-alone repository of integrated information available for decision support OLAP querying and analysis. Aggregate views can be materialized (stored in disk) to improve query performance in a data warehouse.

Several static and dynamic algorithms for selecting materialized aggregate views (MA V) in a data warehouse are proposed in this thesis. The algorithms are then compared by running a simulation system, which can be configured to compare several algorithms on different type of data warehouses. Simulation results for static algorithms are presented to show that several proposed algorithms perform close to an existing good algorithm (HRU Greedy) and run much faster. Simulation results also show that dynamic algorithms depend on locality and need improvement.


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