Filtering algorithms and implementation for very fast publish/subscribe systems
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Content-Based Routing in Mobile Ad Hoc Networks
MOBIQUITOUS '05 Proceedings of the The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services
Pruning subscriptions in distributed publish/subscribe systems
ACSC '06 Proceedings of the 29th Australasian Computer Science Conference - Volume 48
State-Filters for Enhanced Filtering in Sensor-Based Publish/Subscribe Systems
MDM '07 Proceedings of the 2007 International Conference on Mobile Data Management
Preference-aware publish/subscribe delivery with diversity
Proceedings of the Third ACM International Conference on Distributed Event-Based Systems
Fadip: lightweight publish/subscribe for mobile ad hoc networks
OTM'10 Proceedings of the 2010 international conference on On the move to meaningful internet systems: Part II
Parametric subscriptions for content-based publish/subscribe networks
Proceedings of the ACM/IFIP/USENIX 11th International Conference on Middleware
Towards expressive publish/subscribe systems
EDBT'06 Proceedings of the 10th international conference on Advances in Database Technology
Bringing Scheme programming to the iPhone—Experience
Software—Practice & Experience
Dynamic event subscriptions in distributed event based architectures
Expert Systems with Applications: An International Journal
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Current publish/subscribe systems provide very limited support to modify subscriptions dynamically. Consequently, they cannot efficiently control the flow of events between publishers and subscribers, which may lead to unnecessary network traffic. In addition, it is not possible to automatically subscribe or unsubscribe to a service depending on certain context of use. This implies for developers to manually manage subscriptions (e.g., taking care of when to cancel or re-issue a subscription), which may result in inappropriate subscription states (e.g., subscriptions that are cancelled too late). In this paper, we propose the concept of dynamic subscription mechanisms that improves the expressiveness and flexibility of subscriptions. We introduce a new dimension to a subscription that allows a subscriber to express the flow of matched events, and when a new subscription can be (re)issued. We validate our claims for improved flexibility and expressiveness by providing language abstractions and a prototype implementation of a dynamic subscription mechanism framework called Flexub that supports a variation of subscription mechanisms. When compared to existing subscription models, our experiment results show that the support for dynamic subscription mechanisms greatly reduces network traffic of events sent from publishers to the subscribers. In addition, our approach reduces the workload on the subscriber side.