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DEXA
2005
Springer

Control-Based Quality Adaptation in Data Stream Management Systems

10 years 8 months ago
Control-Based Quality Adaptation in Data Stream Management Systems
Unlike processing snapshot queries in a traditional DBMS, the processing of continuous queries in a data stream management system (DSMS) needs to satisfy quality requirements such as processing delay. When the system is overloaded, quality degrades significantly thus load shedding becomes necessary. Maintaining the quality of queries is a difficult problem because both the processing cost and data arrival rate are highly unpredictable. We propose a quality adaptation framework that adjusts the application behavior based on the current system status. We leverage techniques from the area of control theory in designing the quality adaptation framework. Our simulation results demonstrate the effectiveness of the control-based quality adaptation strategy. Comparing to solutions proposed in previous works, our approach achieves significantly better quality with less waste of resources.
Yi-Cheng Tu, Mohamed Hefeeda, Yuni Xia, Sunil Prab
Added 26 Jun 2010
Updated 26 Jun 2010
Type Conference
Year 2005
Where DEXA
Authors Yi-Cheng Tu, Mohamed Hefeeda, Yuni Xia, Sunil Prabhakar, Song Liu
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