Matching events in a content-based subscription system
Proceedings of the eighteenth annual ACM symposium on Principles of distributed computing
The context toolkit: aiding the development of context-enabled applications
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Design and evaluation of a wide-area event notification service
ACM Transactions on Computer Systems (TOCS)
A Middleware Infrastructure for Active Spaces
IEEE Pervasive Computing
Content-Based Networking: A New Communication Infrastructure
IMWS '01 Revised Papers from the NSF Workshop on Developing an Infrastructure for Mobile and Wireless Systems
A Context-Aware Data Management System for Ubiquitous Computing Applications
ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
The many faces of publish/subscribe
ACM Computing Surveys (CSUR)
Forwarding in a content-based network
Proceedings of the 2003 conference on Applications, technologies, architectures, and protocols for computer communications
A Publish & Subscribe Architecture for Distributed Metadata Management
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
LIME: A Middleware for Physical and Logical Mobility
ICDCS '01 Proceedings of the The 21st International Conference on Distributed Computing Systems
XML three-way merge as a reconciliation engine for mobile data
Proceedings of the 3rd ACM international workshop on Data engineering for wireless and mobile access
Metadata creation system for mobile images
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Disseminating Information to Mobile Clients Using Publish-Subscribe
IEEE Internet Computing
A hybrid approach to optimistic file system directory tree synchronization
Proceedings of the 4th ACM international workshop on Data engineering for wireless and mobile access
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We present a novel mechanism for collection and object synchronization based on context information. The mechanism is based on a distributed event system and uses event filters to represent context and realize context queries. The central operations of the system are storing and retrieving objects by their context. The new feature of the system is context-based synchronization, which allows synchronizing collections of objects continuously based on the given context. The system may also be used for context-based service provisioning. We present mechanisms for both collection and object synchronization. The former uses the publish/subscribe paradigm and the latter builds on an XML-aware file synchronizer. We focus on the first mechanism and also discuss the use of the system on mobile and wireless devices. We present a context-aware photo library as an example application.