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Learning Task Specific Web Services Compositions with Loops and Conditional Branches from Example Executions
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SYSNO ASEP 0359201 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Learning Task Specific Web Services Compositions with Loops and Conditional Branches from Example Executions Author(s) Veeraraghavan, H. (US)
Vaculín, Roman (UIVT-O)
Veloso, M. (US)Source Title Web Intelligence and Intelligent Agent Technology. - Los Alamitos : IEEE Computer Society, 2010 / Hoeber O. ; Li Y. ; Huang X.J. - ISBN 978-0-7695-4191-4 Pages s. 581-588 Number of pages 8 s. Publication form Online - E Action WI 2010. IEEE/WIC/ACM International Conference on Web Intelligence Event date 31.08.2010-03.09.2010 VEvent location Toronto Country CA - Canada Event type WRD Language eng - English Country US - United States Keywords learning by demonstration ; plan learning ; task specific plan learning ; web services ; workflow learning Subject RIV IN - Informatics, Computer Science R&D Projects GPP202/10/P604 GA ČR - Czech Science Foundation (CSF) ME08095 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10300504 - UIVT-O (2005-2011) EID SCOPUS 78649830825 DOI 10.1109/WI-IAT.2010.292 Annotation Majority of the existing approaches to service composition, including the widely popular planning based techniques, are not able to automatically compose practical workflows that include complex repetitive behaviors (loops), taking into account possibility of failures and nondeterminism of web service execution results. In this work, we present a learning based approach for composing task specific workflows. We present an approach for learning task specific web service compositions from a very small number of observations (one or more) of example service execution sequences (traces) that solve a given goal. The workflows learned by this approach generalize to the tasks justified by the observed execution trace. The generalization captures the repetitive executions of service sequences, conditional branching executions, and repetitions and branching resulting from failures. We evaluate the approach on a complex web services application involving arbitrary number of repetitive executions and failed executions. Workplace Institute of Computer Science Contact Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800 Year of Publishing 2013
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