CLASSIC: a structural data model for objects
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
Prioritized conflict handing for logic programs
ILPS '97 Proceedings of the 1997 international symposium on Logic programming
Supporting ontological analysis of taxonomic relationships
Data & Knowledge Engineering - ER2000
Understanding and Using Context
Personal and Ubiquitous Computing
Experiences in Using CC/PP in Context-Aware Systems
MDM '03 Proceedings of the 4th International Conference on Mobile Data Management
IJCAR '01 Proceedings of the First International Joint Conference on Automated Reasoning
Description logic programs: combining logic programs with description logic
WWW '03 Proceedings of the 12th international conference on World Wide Web
The description logic handbook: theory, implementation, and applications
The description logic handbook: theory, implementation, and applications
Semantic Web in the Context Broker Architecture
PERCOM '04 Proceedings of the Second IEEE International Conference on Pervasive Computing and Communications (PerCom'04)
A Distributed Architecture for Management and Retrieval of Extended Points of Interest
ICDCSW '05 Proceedings of the First International Workshop on Services and Infrastructure for the Ubiquitous and Mobile Internet (SIUMI) (ICDCSW'05) - Volume 03
Loosely Coupling Ontological Reasoning with an Efficient Middleware for Context-awareness
MOBIQUITOUS '05 Proceedings of the The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services
Efficient profile aggregation and policy evaluation in a middleware for adaptive mobile applications
Pervasive and Mobile Computing
Supporting open and closed world reasoning on the web
PPSWR'06 Proceedings of the 4th international conference on Principles and Practice of Semantic Web Reasoning
A survey of context modelling and reasoning techniques
Pervasive and Mobile Computing
COSAR: hybrid reasoning for context-aware activity recognition
Personal and Ubiquitous Computing
OWL 2 modeling and reasoning with complex human activities
Pervasive and Mobile Computing
Review: A framework for awareness maintenance
Journal of Network and Computer Applications
A knowledge-based system approach for a context-aware system
Knowledge-Based Systems
DynamiCC: a framework for dynamic context composition in ubicomp
Proceedings of the 18th Brazilian symposium on Multimedia and the web
Context provenance to enhance the dependability of ambient intelligence systems
Personal and Ubiquitous Computing
MIMOSA: context-aware adaptation for ubiquitous web access
Personal and Ubiquitous Computing
A survey on ontologies for human behavior recognition
ACM Computing Surveys (CSUR)
Towards a distributed architecture for context-aware mobile applications in UbiComp
Proceedings of the 19th Brazilian symposium on Multimedia and the web
Journal of Ambient Intelligence and Smart Environments - Home-based Health and Wellness Measurement and Monitoring
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The Context Aggregation and REasoning (CARE) middleware aims at supporting context-aware adaptation of internet services in a mobile computing environment. Context awareness requires the acquisition, representation and processing of information that goes beyond raw context data – like device features, network status and user location – to include semantically rich data such as the current activity and interests of users. Representing and reasoning with the latter class of data require the use of ontologies and ontological reasoning. It is well known that reasoning with ontologies poses significant performance issues. The CARE hybrid reasoning mechanism is based on a loose interaction between ontological reasoning and efficient reasoning in a restricted logic programming language. In this paper we illustrate the hybrid reasoning approach adopted by CARE and report the extensive experimental results on ontology-based context reasoning that support our approach.