By Georg Gottlob, Giorgio Orsi, Andreas Pieris (auth.), Johann Eder, Maria Bielikova, A Min Tjoa (eds.)
This publication constitutes the refereed lawsuits of the fifteenth overseas convention on Advances in Databases and data structures, ADBIS 2011, held in Vienna, Austria, in September 2011.
The 30 revised complete papers provided including 2 complete size invited talks have been rigorously reviewed and chosen from one zero five submissions. they're geared up in topical sections on question processing; information warehousing; DB structures; spatial facts; info structures; actual DB layout; evolution, integrity, safeguard; and knowledge semantics.
Read Online or Download Advances in Databases and Information Systems: 15th International Conference, ADBIS 2011, Vienna, Austria, September 20-23, 2011. Proceedings PDF
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Additional info for Advances in Databases and Information Systems: 15th International Conference, ADBIS 2011, Vienna, Austria, September 20-23, 2011. Proceedings
Generally, what distinguishes artifacts is that they can be directly related to business processes, which entails that artifacts have non-trivial lifecycles. With respect to the working example, a line item would most likely be modeled as an object, since it encapsulates data and possibly also behavior, but it is unlikely to be considered an artifact insofar as it does not have a lifecycle on its own. 4 Outlook: Artifact-Centric Interoperation Hubs While artifacts conceptually reduce the impedance mismatch between the process layer and the business logic and data layers, it is still the case that these layers are usually separated and kept in distinct tiers in contemporary multi-tier system architectures.
In: Proc. of KR (2010) 27. : Testing implications of data dependencies. ACM Trans. Database Syst. 4(4), 455–469 (1979) 28. : Optimizing query answering under ontological constraints. In: PVLDB (2011) (in press) 29. : Computational complexity. Addison-Wesley, Reading (1994) 30. : Tractable query answering and rewriting under description logic constraints. Journal of Applied Logic 8(2), 151–232 (2009) 31. : Improving query answering over DL-Lite ontologies. In: Proc. KR (2010) 32. : On the complexity of bounded-variable queries.
ADBIS 2011, LNCS 6909, pp. 27–41, 2011. © Springer-Verlag Berlin Heidelberg 2011 28 M. Benter, S. Böttcher, and R. 2 Contributions “Traditional” XPath evaluators typically evaluate the hierarchical XML data either top-down or bottom-up, as both techniques provide advantages for different classes of queries. In this paper we present an approach that allows XPath evaluation in any direction and that combines the following properties: ─ The approach presented in this paper supports both, bottom-up and top-down XPath query evaluation on an XPath subset that extends core XPath as defined in  by comparisons of paths to constants within predicate filters.
Advances in Databases and Information Systems: 15th International Conference, ADBIS 2011, Vienna, Austria, September 20-23, 2011. Proceedings by Georg Gottlob, Giorgio Orsi, Andreas Pieris (auth.), Johann Eder, Maria Bielikova, A Min Tjoa (eds.)