Incremental updates on mobile datawarehousing using optimized hierarchical views and new aggregation operators

The use of mobile applications is increasing rapidly. Particularly, mobile applications for decision support systems, such as mobile data warehouses, are very attractive. However, mobile application imposes new requirements such as disconnection from the data sources. These requirements force the us...

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Bibliographic Details
Published in17th International Conference on Advanced Information Networking and Applications, 2003. AINA 2003 pp. 78 - 83
Main Authors Sampaio, M.C., Dias, P.M., Baptista, C.S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Aggregates
Application software
Computer networks
Database systems
Decision support systems
Distributed databases
Information systems
Mobile communication
Mobile computing
Spatial databases
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Summary:The use of mobile applications is increasing rapidly. Particularly, mobile applications for decision support systems, such as mobile data warehouses, are very attractive. However, mobile application imposes new requirements such as disconnection from the data sources. These requirements force the use of incremental update algorithms in order to update the mobile hosts. We extend the idea of incremental update algorithms with an optimized hierarchy of views which enables improving performance on mobile data warehouses. Moreover, we prove that other aggregate functions apart from the standard ones, in particular, standard deviation, variance, and ratiotoreport, are suitable for being used in incremental update algorithms.
ISBN:0769519067
9780769519067
DOI:10.1109/AINA.2003.1192847