Generating summaries from event data
Information Processing and Management: an International Journal - Special issue: summarizing text
ACM Computing Surveys (CSUR)
Efficient and extensible algorithms for multi query optimization
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
NiagaraCQ: a scalable continuous query system for Internet databases
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
The Power of Events: An Introduction to Complex Event Processing in Distributed Enterprise Systems
The Power of Events: An Introduction to Complex Event Processing in Distributed Enterprise Systems
Continuous queries over data streams
ACM SIGMOD Record
Continual Queries for Internet Scale Event-Driven Information Delivery
IEEE Transactions on Knowledge and Data Engineering
The Vision of Autonomic Computing
Computer
Static optimization of conjunctive queries with sliding windows over infinite streams
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Dynamic plan migration for continuous queries over data streams
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Exploiting k-constraints to reduce memory overhead in continuous queries over data streams
ACM Transactions on Database Systems (TODS)
Efficient evaluation of XQuery over streaming data
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Network-Aware Operator Placement for Stream-Processing Systems
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
Optimizing Multiple Queries in Distributed Data Stream Systems
ICDEW '06 Proceedings of the 22nd International Conference on Data Engineering Workshops
High-performance complex event processing over streams
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
Distributed Event-Based Systems
Distributed Event-Based Systems
Efficient pattern matching over event streams
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
TESLA: a formally defined event specification language
Proceedings of the Fourth ACM International Conference on Distributed Event-Based Systems
Event Processing in Action
Data stream analytics as cloud service for mobile applications
OTM'10 Proceedings of the 2010 international conference on On the move to meaningful internet systems: Part II
WS-Aggregation: distributed aggregation of web services data
Proceedings of the 2011 ACM Symposium on Applied Computing
Deriving a unified fault taxonomy for event-based systems
Proceedings of the 6th ACM International Conference on Distributed Event-Based Systems
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This paper proposes a method for optimized placement of query processing elements in a distributed stream processing platform consisting of several computing nodes. We focus on the case that multiple users run different continuous Complex Event Processing (CEP) queries over various event streams. In times of increasing event frequency it may be required to migrate parts of the query processing elements to a new node. Our approach achieves a tradeoff between three dimensions: balancing the load among nodes, avoiding duplicate buffering of events, and minimizing the data transfer between nodes. Thereby, we also take one-time costs for migration of event buffers into account. We provide a detailed problem description, present a solution based on metaheuristic optimization, and evaluate different aspects of the problem in a Cloud Computing environment.