By Denilson Barbosa, Angela Bonifati, Zohra Bellahsène, Ela Hunt, Rainer Unland
This booklet constitutes the refereed court cases of the fifth foreign XML Database Symposium, XSym 2007, held in Vienna, Austria, in September 2007 along with the foreign convention on Very huge info Bases, VLDB 2007.
The eight revised complete papers including 2 invited talks and the prolonged summary of one panel consultation have been conscientiously reviewed and chosen from 25 submissions. masking all present points of center database expertise for XML info administration, XML and knowledge integration, and improvement and deployment of XML purposes, the papers are equipped in topical sections on XPath question answering, XQuery review and function, in addition to XML updates, temporal XML information and concurrency.
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Additional resources for Database and XML Technologies: 5th International XML Database Symposium, XSym 2007, Vienna, Austria, September 23-24, 2007, Proceedings
Let Rroot be the regular expression representing the content model in the DTD D for the root node vroot of p. e. “∗” or “+” applies to b or to a term in which b is contained) or not. In the former case, vroot can have a b-child (while D-consistent) if, and only if, 26 M. T. R. Mousavi it can have many of them, and in the latter case all such b-children must map to the same b-node in any document tree which satisﬁes D anyway. Therefore, we only need to check whether L(Rroot ) contains a word wc which includes all of the labels in C (with an arbitrary ordering), where C is the set, as opposed to the multiset, of labels of the children of vroot .
Optimizing queries on ﬁles. In: SIGMOD, pp. 301–312 (1994) 8. : Exploring the (semi-)structure of XML web collections. edu/∼ consens/describex/ 9. : The Wikipedia XML Corpus. SIGIR Forum (2006) 10. : An eﬃcient algorithm for computing bisimulation equivalence. Theoretical Computer Science 311(1-3), 221–256 (2004) 11. : Dataguides: Enabling query formulation and optimization in semistructured databases. In: VLDB, pp. 436–445 (1997) 12. : Covering indexes for branching path queries. In: SIGMOD, pp.
The DescribeX tool can invoke an arbitrary XPath processor for the evaluation of XPath expressions. Saxon 3 was used for the experiments reported here. The DescribeX architecture is tailored to process XML collections one ﬁle at a time, the prevalent data processing model for the Web. Each ﬁle is parsed and processed independently of the other ﬁles in the collection. P. Consens and F. Rizzolo stored in an indexed table named elemDB that has schema elemDB(SID, docID, endPos, startPos), where the underlined attributes are the key (also used for indexing).