Beyond XML and RDF

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Beyond XML and RDF: the versatile web query language xcerpt

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International World Wide Web Conference archive
Proceedings of the 15th international conference on World Wide Web table of contents

Edinburgh, Scotland

POSTER SESSION: Browsers and UI, web engineering, hypermedia & multimedia, security, and accessibility table of contents

Pages: 1053 - 1054

Year of Publication: 2006

ISBN:1-59593-323-9

Authors

Benedikt Linse	University of Munich, Munich, Germany
Andreas Schroeder	University of Munich, Munich, Germany

Sponsors

SIGWEB: ACM Special Interest Group on Hypertext, Hypermedia, and Web
ACM: Association for Computing Machinery

Publisher

ACM New York, NY, USA

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ABSTRACT

Applications and services that access Web data are becoming increasingly more useful and wide-spread. Current main-stream Web query languages such as XQuery, XSLT, or SPARQL, however, focus only on one of the different data formats available on the Web. In contrast, Xcerpt is a emphversatile semi-structured query language, i.e., a query language able to access all kinds of Web data such as XML and RDF in the same language reusing common concepts and language constructs. To integrate heterogeneous data and as a foundation for Semantic Web reasoning, Xcerpt also provides rules. Xcerpt has a visual companion language, visXcerpt, that is conceived as a mere rendering of the (textual) query language Xcerpt using a slightly extended CSS. Both languages are demonstrated along a realistic use case integrating XML and RDF data highlighting interesting and unique features. Novel language constructs and optimization techniques are currently under investigation in the Xcerpt project (cf.@ urlhttp://xcerpt.org/).

REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	J. Bailey, F. Bry, T. Furche, and S. Schaffert. Web and Semantic Web Query Languages: A Survey. Reasoning Web Summer School 2005. Springer, 2005.
	2	S. Berger, F. Bry, S. Schaffert, and C. Wieser. Xcerpt and visXcerpt: From Pattern-Based to Visual Querying of XML and Semistructured Data. In 29th Intl. Conf. on Very Large Data Bases, 2003.
	3	S. Berger, E. Coquery, W. Drabent, and A. Wilk. Descriptive Typing Rules for Xcerpt. In Proc. of Workshop on Principles and Practice of Semantic Web Reasoning. 2005.
	4	F. Bry, T. Furche, L. Badea, C. Koch, S. Schaffert, and S. Berger. Querying the Web Reconsidered: Design Principles for Versatile Web Query Languages. Journal of Semantic Web and Information Systems, 1(2), 2005.
	5	F. Bry, A. Schroeder, T. Furche, and B. Linse. Efficient Evaluation of n-ary Queries over Trees and Graphs. Submitted for publication, 2006.
	6	T. Furche, F. Bry, and S. Schaffert. Initial Draft of a Language Syntax. Deliverable I4-D6, REWERSE, 2006.
	7	S. Schaffert and F. Bry. Querying the Web Reconsidered: A Practical Introduction to Xcerpt. In Extreme Markup Languages, 2004.
	8	M. M. Zloof. Query-by-Example: A Data Base Language. IBM Systems Journal, 16(4):324--343, 1977.