An agent-based approach for building complex software systems
Communications of the ACM
Decision Processes in Agent-Based Automated Contracting
IEEE Internet Computing
Quality driven web services composition
WWW '03 Proceedings of the 12th international conference on World Wide Web
How to Solve It: Modern Heuristics
How to Solve It: Modern Heuristics
Service-Oriented Computing: Key Concepts and Principles
IEEE Internet Computing
TRAVOS: Trust and Reputation in the Context of Inaccurate Information Sources
Autonomous Agents and Multi-Agent Systems
Flexible Provisioning of Service Workflows
Proceedings of the 2006 conference on ECAI 2006: 17th European Conference on Artificial Intelligence August 29 -- September 1, 2006, Riva del Garda, Italy
An effective strategy for the flexible provisioning of service workflows
AAMAS'07/SOCASE'07 Proceedings of the 2007 AAMAS international workshop and SOCASE 2007 conference on Service-oriented computing: agents, semantics, and engineering
Flexible provisioning of web service workflows
ACM Transactions on Internet Technology (TOIT)
Flexible provisioning of service workflows
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 2
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Service-oriented technologies enable software agents to dynamically discover and provision remote services for their workflows. Current work has typically assumed these services to be reliable and deterministic, but this is unrealistic in open systems, such as the Web, where they are offered by autonomous agents and are, therefore, inherently unreliable. To address this potential unreliability (in particular, uncertain service durations and failures), we consider the provisioning of abstract workflows, where many heterogeneous providers offer services at differing levels of quality. More specifically, we show that service provisioning is NP-hard, and then devise two heuristic strategies that use service redundancy in a flexible manner to address uncertainty and failure. In empirical experiments, we show that these heuristic strategies can achieve significant improvements over standard approaches in a wide range of environments.