Download Database and XML Technologies: 5th International XML by Denilson Barbosa, Angela Bonifati, Zohra Bellahsène, Ela PDF

By Denilson Barbosa, Angela Bonifati, Zohra Bellahsène, Ela Hunt, Rainer Unland

This e-book constitutes the refereed complaints of the fifth overseas XML Database Symposium, XSym 2007, held in Vienna, Austria, in September 2007 along with the foreign convention on Very huge information Bases, VLDB 2007.

The eight revised complete papers including 2 invited talks and the prolonged summary of one panel consultation have been rigorously reviewed and chosen from 25 submissions. protecting all present points of middle database know-how for XML info administration, XML and information integration, and improvement and deployment of XML functions, the papers are geared up in topical sections on XPath question answering, XQuery evaluate and function, in addition to XML updates, temporal XML info and concurrency.

Show description

Read or Download Database and XML Technologies: 5th International XML Database Symposium, XSym 2007, Vienna, Austria, September 23-24, 2007, Proceedings PDF

Best information theory books

Coding and cryptology: proceedings of the international workshop, Wuyi Mountain, Fujian, China 11-15 June 2007

Li Y. , Ling S. , Niederreiter H. , Wang H. , Xing C. (eds. ) Coding and Cryptology. . complaints of the overseas Workshop, Wuyi Mountain, Fujian, China, 11-15 June 2007 (WS, 2008)(ISBN 9812832238)(O)(288s)

Handbook of Biometrics

Biometric acceptance, or just Biometrics, is a speedily evolving box with functions starting from getting access to one's desktop to gaining access right into a kingdom. Biometric structures depend on using actual or behavioral qualities, akin to fingerprints, face, voice and hand geometry, to set up the id of anyone.

Chemistry of the Natural Atmosphere

Wisdom of thc chemical habit of hint compounds within the surroundings has grown gradually, and occasionally even spectacularly, in fresh a long time. those advancements have ended in the emergence of atmospheric chemistry as a brand new department of technological know-how. This ebook covers all points of atmospheric chemistry on an international scale, integrating info from chemistry and geochemistry, physics, and biology to supply a unified account.

Coding, Cryptography and Combinatorics

It has lengthy been well-known that there are attention-grabbing connections among cod­ ing idea, cryptology, and combinatorics. accordingly it appeared fascinating to us to prepare a convention that brings jointly specialists from those 3 parts for a fruitful alternate of rules. We selected a venue within the Huang Shan (Yellow Mountain) area, the most scenic components of China, so that it will give you the extra inducement of a pretty place.

Additional resources for Database and XML Technologies: 5th International XML Database Symposium, XSym 2007, Vienna, Austria, September 23-24, 2007, Proceedings

Sample text

This can happen because the D. Barbosa et al. ): XSym 2007, LNCS 4704, pp. 31–45, 2007. P. Consens and F. g. ). In these scenarios, schemas alone are not that helpful for understanding (nor for optimizing) XPath evaluation. This paper argues that DescribeX, a tool supporting powerful structural summaries, can help with understanding the (semi)structure of large collections of XML documents. In fact, DescribeX summaries contribute to significantly speed up (and scale up) XPath evaluation with existing file at a time tools, enabling fast exploration of the results of XPath workloads on large collections.

This entails performing a refinement of the extent of the node. For instance, in order to adapt the SD of Figure 2 (a) to query Q2 from Section 2, the extent of s6 was refined into two sets (Figure 2 (b)). An in-depth discussion of refinements is beyond the scope of this paper and can be found in [8]. 5 Document-at-a-time Evaluation Using SDs In the previous section we have shown how to translate any XPath expression into an equivalent AxPRE. In this section we will discuss how this AxPRE can be used to find the SD nodes that contain candidate documents.

Consens and F. Rizzolo A few adaptive summaries, like APEX [5] and D(k)-index [23], use dynamic query workloads to determine the subset of incoming paths to be summarized. APEX uses an ad-hoc construction mechanism to summarize paths that appear frequently in a query workload. The workload APEX considers are expressions containing a number of child axis composition that may be preceded by a descendant axis, without any predicate. e. SDs defined by the p∗ AxPRE) and does not provide an explicit description of the extents, whereas DescribeX supports arbitrary AxPRE’s.

Download PDF sample

Rated 4.69 of 5 – based on 9 votes