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The contents of the latest issue of: International Journal of Web Services Research (JWSR) Official Publication of the Information Resources Management Association Volume 3, Issue 2, April - June 2006 Published: Quarterly in Print and Electronically ISSN: 1545-7362 EISSN: 1546-5004 http://www.servicescomputing.org/jwsr Editor-In-Chief: Liang-Jie Zhang, IBM T.J. Watson Research Center USA EDITORIAL PREFACE: Web Services in Data, Control, and Applications Jia Zhang, Northern Illinois University, USA Liang-Jie Zhang, Editor-In-Chief, IBM, T.J. Watson Research Center, USA This issue of the International Journal of Web Services research (JWSR) is a collection of five papers on various topics of Web services. RESEARCH PAPERS PAPER ONE: Search Strategies for Automatic Web Service Composition Nikola Milanovic, Humboldt University Berlin, Germany Miroslaw Malek, Humboldt University Berlin, Germany This paper investigates architectural properties required for supporting automatic service composition. First, composable service architecture will be described, based on modeling Web Services as abstract machines supported by formally defined composition operators. Based on the proposed infrastructure, the authors give several options for achieving automatic service composition by treating it as a search problem. Namely, basic heuristic, probabilistic, learning-based, decomposition and bidirectional automatic composition mechanisms will be presented and compared. Finally, this article discusses the impact and outlook for automatic composition. To obtain a copy of the entire article, click on the link below. http://www.idea-group.com/articles/details.asp?id=5964 PAPER TWO: XWRAPComposer: A Multi-Page Data Extraction Service Ling Liu, Georgia Institute of Technology, USA Jianjun Zhang, Georgia Institute of Technology, USA Wei Han, IBM Research, Almaden Research Center, USA Calton Pu, Georgia Institute of Technology, USA James Caverlee, Georgia Institute of Technology, USA Sungkeun Park, Georgia Institute of Technology, USA Terence Critchlow, Lawrence Livermore National Laboratory, USA David Buttler, Lawrence Livermore National Laboratory, USA Matthew Coleman, Lawrence Livermore National Laboratory, USA The authors of this paper present a service-oriented architecture and a set of techniques for developing wrapper code generators, including the methodology of designing an effective wrapper program construction facility and a concrete implementation, called XWRAPComposer. This wrapper generation framework has two unique design goals. First, the authors explicitly separate tasks of building wrappers that are specific to a Web service from the tasks that are repetitive for any service. Second, inductive learning algorithms that derive information flow and data extraction patterns by reasoning about sample pages or sample specifications are used. More importantly, the authors design a declarative rule-based script language for multi-page information extraction, encouraging a clean separation of the information extraction semantics from the information flow control and execution logic of wrapper programs. To obtain a copy of the entire article, click on the link below. http://www.idea-group.com/articles/details.asp?id=5965 PAPER THREE: An Ontology-Based Content Model for Intelligent Web Content Access Services Stephen J. H. Yang, National Central University, Taiwan Norman W. Y. Shao, National Kaohsiung First University of Science and Technology, Taiwan Intelligent Web content access is a fundamental Web service, representing the first step toward semantic Web services. A lack of adequate and sufficient interpretation for content in current methods impedes access to content. This study regards Web content as any content described and published in the format of a markup language such as HTML or XML. In this paper, the authors present the Content Model, combining subjective information from the content itself with objective information from peoples perceptions of this content, providing an integrated interpretation of a content item. During accessing, a search engine examines the description of a content item, as found in the Content Model, to find matching files. An ontology-based Content Model is developed and applied to the Web environment to enhance Web content accessibility. Results of this study demonstrate that the proposed Content Model provides essential content descriptions for locating, accessing, and interacting with content providers. To obtain a copy of the entire article, click on the link below. http://www.idea-group.com/articles/details.asp?id=5966 PAPER FOUR: Self-Reconfiguration of Service-Based System for Service Level Agreements and Resource Optimization Ying Li, IBM China Research Laboratory, China Kewei Sun, IBM China Research Laboratory, China Jie Qiu, IBM China Research Laboratory, China Ying Chen, IBM China Research Laboratory, China In this paper, the authors propose an autonomic computing approach to the problem of reconfiguration, that is, enabling the service-based system to configure itself by means of a loop of monitoring, analyzing, planning and executing. This article begins by formalizing the definition of reconfiguration. Then, a description is given on how to implement the autonomic computing mechanisms for reconfiguring service-based systems to satisfy Service Level Agreements with minimal resource consumption. The approach is demonstrated on a resilient service provisioning environment. Finally, the preliminary experiments are evaluated to determine the effectiveness of the proposed approach. To obtain a copy of the entire article, click on the link below. http://www.idea-group.com/articles/details.asp?id=5967 PAPER FIVE: UML-Based Support for Designing and Validating Web Service Descriptions Juanjuan Jiang, Tampere University of Technology, Finland Tarja Systä, Tampere University of Technology, Finland WSDL descriptions, often characterized as IDLs for Web services, are a key for Web service interoperability. Therefore, special care should be taken in designing WSDL descriptions. In this paper, the authors present an approach that provides UML-based support to design and validate WSDL descriptions. To promote Web service interoperability, WS-I organization provides a Basic Profile that defines clarifications, refinements, interpretations, and amplifications of Web service specifications, including WSDL. The article suggests UML-based profiles to define structural rules of WSDL documents as well as Basic Profile recommendations for WSDL descriptions. These profiles can be used to guide the user in designing correct and Basic-Profile-compliant WSDL descriptions and to check the validity of existing WSDL descriptions. A method and tools for such validity checking is proposed, and the applicability of the approach with case studies. To obtain a copy of the entire article, click on the link below. http://www.idea-group.com/articles/details.asp?id=5968 ***************************************************** For full copies of the above articles, check for this issue of the International Journal of Web Services Research (JWSR) in your Institution's library. If your library is not currently subscribed to this Journal, please recommend JWSR subscription to your librarian. ***************************************************** Note: For only $18.00, purchase a JWSR article or any of over 1,100 single journal articles available electronically by visiting www.idea-group.com/articles. CALL FOR PAPERS Mission of JWSR: Web Services are among the most important emerging technologies in the e-business, computer software and communication industries. The Web Services technologies will redefine the way that companies do business and exchange information in the twenty-first century. They will enhance business efficiency by enabling dynamic provisioning of resources from a pool of distributed resources. Due to the importance of the field, there is a significant amount of ongoing research in the areas. In a parallel effort, standardization organizations are actively developing standards for Web Services. The Web Services are creating what will become one of the most significant industries of the new century. The International Journal of Web Services Research is designed to be a valuable resource providing leading technologies, development, ideas, and trends to an international readership of researchers and engineers in the field of Web Services. Coverage of JWSR: Web Services architecture Web Services security Frameworks for building Web Service applications Composite Web Service creation and enabling infrastructures Web Services discovery Resource management for Web Services Solution Management for Web Services Dynamic invocation mechanisms for Web Services Quality of service for Web Services Web Services modeling Web Services performance UDDI enhancements SOAP enhancements Case Studies for Web Services E-Commerce applications using Web Services Grid based Web Services applications (e.g. OGSA) Business process integration and management using Web Services Multimedia applications using Web Services Mathematic foundations for service oriented computing Communication applications using Web Services Interactive TV applications using Web Services Semantic services computing Business Grid Interested authors should consult the Journal's manuscript submission guidelines at http://www.idea-group.com/jwsr . Please submit your paper through the online system (http://www.servicescomputing.org/jwsr). All inquiries should be sent to: Editor-In-Chief: Dr. Liang-Jie Zhang at zhanglj AT us.ibm.com _______________________________ Roosewelt Lins: http://www.profinfo.ufma.br/roo Laboratório de Sistemas Inteligentes Departamento de Engenharia de Eletricidade Universidade Federal do Maranhão _______________________________________________ Bib_virtual mailing list [email protected] https://listas.ibict.br/mailman/listinfo/bib_virtual
