Group-Aware Stream Filtering
Towards Collaborative Data Reduction in Stream Processing Systems
(Sprache: Englisch)
In this dissertation, we (the author and her research collaborators) consider a distributed system that disseminates high-volume event streams to many simultaneous monitoring applications over a low-bandwidth network. For bandwidth efficiency, we propose a...
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In this dissertation, we (the author and her research collaborators) consider a distributed system that disseminates high-volume event streams to many simultaneous monitoring applications over a low-bandwidth network. For bandwidth efficiency, we propose a ``group-aware stream filtering'' approach, used together with multicasting, that exploits two overlooked, yet important, properties of monitoring applications: 1) many of them can tolerate some degree of ``slack'' in their data quality requirements, and 2) there may exist multiple subsets of the source data satisfying the quality needs of an application. We can thus choose the ``best alternative'' subset for each application to maximize the data overlap within the group to best benefit from multicasting. Here we provide a general framework for the group-aware stream filtering problem, which we prove is NP-hard. We introduce a suite of heuristics-based algorithms that ensure data quality (specifically, granularity and timeliness) while preserving bandwidth. Our evaluation shows that group-aware stream filtering is effective in trading CPU time for bandwidth savings, compared with self-interested filtering.
Autoren-Porträt von Ming Li
Li, MingMing Li studies problems in the general areas of DistributedSystems and Information Management. Specifically, she focused onpervasive computing, distributed stream processing andlow-bandwidth communication systems during the past five years.She is a member of ACM, IEEE and USENIX. She holds a Ph.D ofComputer Science from Dartmouth College.
Bibliographische Angaben
- Autor: Ming Li
- 2009, 132 Seiten, Masse: 22 cm, Kartoniert (TB), Englisch
- Verlag: LAP Lambert Academic Publishing
- ISBN-10: 3838302893
- ISBN-13: 9783838302898
Sprache:
Englisch
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