Title :
A Stochastic-Petri-Net-Based Model for Ontology-Based Service Compositions
Author :
Xia, Yunni ; Dai, Gang ; Tang, Fangfang ; Zhu, Qingsheng
Author_Institution :
Sch. of Comput., Chongqing Univ., Chongqing, China
Abstract :
OWL-S, one of the most significant Semantic web service ontologies proposed to date, provides Web Service providers with a core ontological framework and guidelines for describing the properties and capabilities of their web Services in unambiguous, computer interpretable form. In this paper, we propose a probabilistic model for OWL-S processes, employing the Non-markovian stochastic Petri net(NMSPN) as the intermediate representation. A set of translation rules is defined for constructs and activities of OWL-S so that processes specified in OWL-S can be translated into NMSPN. Based on the NMSPN representation, analytical methods for QoS analysis can be designed.
Keywords :
Markov processes; Petri nets; Web services; knowledge representation languages; ontologies (artificial intelligence); semantic Web; stochastic processes; NMSPN; OWL-S; Semantic Web service ontologies; nonMarkovian stochastic Petri net; ontology based service compositions; probabilistic model; stochastic Petri net based model; Computational modeling; Grounding; Petri nets; Probabilistic logic; Simple object access protocol; Stochastic processes;
Conference_Titel :
Theoretical Aspects of Software Engineering (TASE), 2011 Fifth International Symposium on
Conference_Location :
Xi´an, Shaanxi
Print_ISBN :
978-1-4577-1487-0
DOI :
10.1109/TASE.2011.32
