By Timos K. Sellis, Alkis Simitsis (auth.), Yannis Ioannidis, Boris Novikov, Boris Rachev (eds.)
The sequence of East ecu meetings on Advances in Databases and knowledge platforms (ADBIS) is a longtime and prestigious discussion board for the trade of the most recent study leads to info administration. It offers special possibilities for database researchers, practitioners, builders, and clients from East eu nations to discover new principles, concepts, and instruments, and to interchange stories with colleagues from the remainder of the area. This quantity comprises the lawsuits of the eleventh ADBIS convention, held in Varna, Bulgaria, September 29 – October three, 2007. The convention incorporated three keynote talks, 36 examine papers in thirteen classes, and a couple of tutorials. Twenty-tree of the examine papers in addition to papers or prolonged abstracts for the keynote talks are integrated the following; the rest papers look in neighborhood complaints. exotic participants of the database and information-retrieval groups added the 3 keynotes. Timos Sellis, a professional within the region of multidimensional indexing and knowledge warehousing, analyzed the whole lifecycle of ETL workflows, from specification to optimized execution, providing suggestions in addition to destiny demanding situations. Gerhard Weikum, a pacesetter of numerous efforts falling on the intersection of databases and knowledge retrieval, mentioned the emergence of a number of “Webs” and the way those might be harvested and sought for wisdom. ultimately, Paolo Atzeni, famous for numerous contributions to database idea, addressed the perennial challenge of schema and knowledge translation within the context of rising version administration structures and defined numerous study demanding situations that emerge.
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Additional info for Advances in Databases and Information Systems: 11th East European Conference, ADBIS 2007, Varna, Bulgaria, September 29-October 3, 2007. Proceedings
3716, pp. 160–175. Springer, Heidelberg (2005) 26 P. Atzeni 7. : Model-independent schema and data translation. In: EDBT, pp. 368–385 (2006) 8. : Midst: model independent schema and data translation. In: Sigmod, pp. 1134–1136 (2007) 9. : M(dm): An open framework for interoperation of multimodel multidatabase systems. In: ICDE, pp. 218–227. IEEE Computer Society Press, Los Alamitos (1992) 10. : Applying model management to classical meta data problems. In: CIDR, pp. 209–220 (2003) 11. : A vision of management of complex models.
Playing a role, in a conversation. The different roles are described in the Role class. In the IOW context, whatever the protocol being considered, we have mainly three roles (Provider, Requester, Moderator) described through the value of the Type property. A partner involved in an IOW may be a Provider or a Requester of a workflow service. A Moderator manages a single conversation and has the same lifetime as the conversation it manages. It plays the type of coordination protocol underlying the conversation, grants roles to providers and requesters involved in the conversation, and ensures that any message that takes place in the conversation is compliant with the rules of the type of protocol it plays .
Semantic coordination of IOW systems. The proposed ontology permits to describe and access coordination protocols in an explicit, machine readable and sharable way. Thus, this ontology facilitates communication and semantic inter-operability between organizations involved in an IOW. Moreover, this ontology makes a dynamic selection of a coordination protocol possible: indeed, as explained in the paper, an organization is not forced to commit to a single coordination protocol, but dynamically chooses the coordination protocol which is the most suitable according to the coordination problem to solve and according to the type of interaction it is able to participate in.
Advances in Databases and Information Systems: 11th East European Conference, ADBIS 2007, Varna, Bulgaria, September 29-October 3, 2007. Proceedings by Timos K. Sellis, Alkis Simitsis (auth.), Yannis Ioannidis, Boris Novikov, Boris Rachev (eds.)