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Abstract: This paper proposes XAL, an XML ALgebra. Its novelty is based on the simplicity of its data model and its well-defined logical operators, which makes it suitable for composability, optimizability, and semantics definition of a query language for XML data. At the heart of the algebra resides the notion of collection, a concept similar to the mathematician's monad or functional programmer's comprehension. The operators are classified in three clusters: extraction operators retrieve the needed... (Update)
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BibTeX entry: (Update)
F. Frasincar, G.-J. Houben, and C. Pau. Xal: an algebra for xml query optimization. In Database Technologies 2002. http://citeseer.ist.psu.edu/frasincar02xal.html More
@inproceedings{ frasincar02xal,
author = "Flavius Frasincar and Geert-Jan Houben and Cristian Pau",
title = "{XAL}: An Algebra For {XML} Query Optimization",
booktitle = "Thirteenth Australasian Database Conference (ADC2002)",
publisher = "ACS",
address = "Melbourne, Australia",
editor = "Xiaofang Zhou",
year = "2002",
url = "citeseer.ist.psu.edu/frasincar02xal.html" }
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