Abstract
Spatial OLAP refers to the confluence of two technologies: spatial data management and OLAP for non-spatial data. An example query on spatial OLAP data is to find the total amount of gas sold within a period of time, of certain type of gas, to a certain type of customers, by gas stations located within a query window on a map. A framework has been established in [8], which converts this query into a set of queries for a general-purpose ROLAP system. However, there has been little done at the query optimization level, once they are submitted to the OLAP system. In this paper, we develop and implement 3 query processing strategies of very different nature on our experimental MOLAP system. Detailed experimental performance data are presented, using a real-life spatial database with 1/3 million of spatial objects.
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References
Kheops Technologies Inc., JMAP Spatial OLAP, http://www.kheops-tech.com/en/jmap/solap.jsp
Kifer, M., Bernstein, A., Lewis, P.: Database Systems, 2nd edn. Addison Wesley, Reading (2006)
Luk, W.: A B-tree Based Scheme for OLAP Aggregation and Query Processing (submitted for publication)
Mamoulis, N., Badiras, S., Kalnis, P.: Evaluation of Top-k OLAP Queries Using Aggregate R-Trees. In: Bauzer Medeiros, C., Egenhofer, M.J., Bertino, E. (eds.) SSTD 2005. LNCS, vol. 3633. Springer, Heidelberg (2005)
Papadias, D., Kalnis, P., Zhang, J., Tao, Y.: Efficient OLAP Operations in Spatial Data Warehouses. In: Jensen, C.S., Schneider, M., Seeger, B., Tsotras, V.J. (eds.) SSTD 2001. LNCS, vol. 2121. Springer, Heidelberg (2001)
Pestana, G., Silval, M.: Multidimensional Modeling based on Spatial, Temporal and Spatio-Temporal Stereotypes. In: ESRI International User Conference, San Diego, Calif (2005)
Rao, F., Zhang, L., Yu, X., Li, Y., Chen, Y.: Spatial Hierarchy and OLAP-Favored Search in Spatial Data Warehouse. In: DOLAP 2003, New Orleans, Louisiana (2003)
Zhang, L., Li, Y., Rao, F., Yu, X., Chen, Y., Liu, D.: An Approach to Enabling Spatial OLAP by Aggregating on Spatial Hierarchy. In: Kambayashi, Y., Mohania, M., Wöß, W. (eds.) DaWaK 2003. LNCS, vol. 2737. Springer, Heidelberg (2003)
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Choi, K., Luk, WS. (2008). Processing Aggregate Queries on Spatial OLAP Data. In: Song, IY., Eder, J., Nguyen, T.M. (eds) Data Warehousing and Knowledge Discovery. DaWaK 2008. Lecture Notes in Computer Science, vol 5182. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85836-2_12
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DOI: https://doi.org/10.1007/978-3-540-85836-2_12
Publisher Name: Springer, Berlin, Heidelberg
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