Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (8): 2003-2007.

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Multidimensional model of data stream

HOU Dong-feng, LU Chang-hui, LIU Qing-bao, ZHANG Wei-ming   

  1. Coll. of Information System and Management, National Univ. of Defense Technology, Changsha 410073, China
  • Received:2008-05-13 Revised:2009-04-21 Online:2009-08-20 Published:2010-01-03

Abstract: Due to the characteristics of data stream(e.g.,dynamic,infinite),the multidimensional modeling and analysis of data stream are confronted with a tremendous challenge.A multidimensional model of data stream based on the above characteristics is introduced.The dynamic and infinite of data stream are depicted through the definition of multi-level time windows in time dimension,and the special operations of data stream such as snapshot,persistence and dynamic maintenance are described.Thereby it can provide the theoretic foundation for the multidimensional querying and analysis of data stream.

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