The STATEMATE semantics of statecharts
ACM Transactions on Software Engineering and Methodology (TOSEM)
On the complexity of integer programming
Journal of the ACM (JACM)
Semantic Matching of Web Services Capabilities
ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
A software framework for matchmaking based on semantic web technology
WWW '03 Proceedings of the 12th international conference on World Wide Web
Quality driven web services composition
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
An approach for QoS-aware service composition based on genetic algorithms
GECCO '05 Proceedings of the 7th annual conference on Genetic and evolutionary computation
Heuristics for QoS-aware Web Service Composition
ICWS '06 Proceedings of the IEEE International Conference on Web Services
Adaptive Service Composition in Flexible Processes
IEEE Transactions on Software Engineering
Non-standard inferences in description logics
Non-standard inferences in description logics
Service selection algorithms for composing complex services with multiple qos constraints
ICSOC'05 Proceedings of the Third international conference on Service-Oriented Computing
A constraint-based approach to horizontal web service composition
ISWC'06 Proceedings of the 5th international conference on The Semantic Web
A formal model for semantic web service composition
ISWC'06 Proceedings of the 5th international conference on The Semantic Web
Optimizing QoS-Aware Semantic Web Service Composition
ISWC '09 Proceedings of the 8th International Semantic Web Conference
A Generative Framework for Service Process Composition
ICSOC-ServiceWave '09 Proceedings of the 7th International Joint Conference on Service-Oriented Computing
Towards robust service compositions in the context of functionally diverse services
Proceedings of the 21st international conference on World Wide Web
Satisfying End User Constraints in Service Composition by Applying Stochastic Search Methods
International Journal of Web Services Research
Information and Software Technology
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Automation of Web service composition is one of the most interesting challenges facing the Semantic Web today. Since Web services have been enhanced with formal semantic descriptions, it becomes conceivable to exploit causal links i.e., semantic matching between their functional parameters (i.e., outputs and inputs). The semantic quality of causal links involved in a composition can be then used as a innovative and distinguishing criterion to estimate its overall semantic quality. Therefore non functional criteria such as quality of service (QoS) are no longer considered as the only criteria to rank compositions satisfying the same goal. In this paper we focus on semantic quality of causal link based semantic Web service composition. First of all, we present a general and extensible model to evaluate quality of both elementary and composition of causal links. From this, we introduce a global causal link selection based approach to retrieve the optimal composition. This problem is formulated as an optimization problem which is solved using efficient integer linear programming methods. The preliminary evaluation results showed that our global selection based approach is not only more suitable than the local approach but also outperforms the naive approach.