Maintaining knowledge about temporal intervals
Communications of the ACM
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
Distributed Database Systems
An Introduction to Database Systems
An Introduction to Database Systems
Complex Event Processing for Financial Services
SCW '06 Proceedings of the IEEE Services Computing Workshops
Events and streams: harnessing and unleashing their synergy!
Proceedings of the second international conference on Distributed event-based systems
State management and concurrency in event processing
Proceedings of the Third ACM International Conference on Distributed Event-Based Systems
Rule-Based Event Processing and Reaction Rules
RuleML '09 Proceedings of the 2009 International Symposium on Rule Interchange and Applications
Industry experience with the IBM Active Middleware Technology (AMiT) Complex Event Processing engine
Proceedings of the Fourth ACM International Conference on Distributed Event-Based Systems
Retractable complex event processing and stream reasoning
RuleML'2011 Proceedings of the 5th international conference on Rule-based reasoning, programming, and applications
Entity-based state management for complex event processing applications
RuleML'2011 Proceedings of the 5th international conference on Rule-based reasoning, programming, and applications
Calibration games: making calibration tasks enjoyable by adding motivating game elements
Proceedings of the 24th annual ACM symposium on User interface software and technology
From game design elements to gamefulness: defining "gamification"
Proceedings of the 15th International Academic MindTrek Conference: Envisioning Future Media Environments
Fusion of background knowledge and streams of events
Proceedings of the 6th ACM International Conference on Distributed Event-Based Systems
A Generic Platform for Enterprise Gamification
WICSA-ECSA '12 Proceedings of the 2012 Joint Working IEEE/IFIP Conference on Software Architecture and European Conference on Software Architecture
GaML - A Modeling Language for Gamification
UCC '13 Proceedings of the 2013 IEEE/ACM 6th International Conference on Utility and Cloud Computing
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Complex Event Processing (CEP) has been successfully applied in various domains. As of today, the management of external, durable, and encapsulated state in such systems has received little attention in research. An emerging kind of rule and event-based systems are platforms for gamification. These systems require an efficient management of entities containing state. In this paper, we are proposing a hybrid system capable of fast event processing on the one hand and global state, entity, and persistency management on the other hand. Moreover, we present and evaluate different synchronization strategies between an event processor and a business entity provider. We demonstrate that our extensions outperform conventional CEP solutions in terms of state persistency and ex post analytics by adding just a marginal performance overhead.