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Kraus, Michael; Bry, François and Kitagawa, Kazuhiro (2003): A Visual Language for Web Querying and Reasoning. PPSWR 2003, International Workshop on Principles and Practice of Semantic Web Reasoning, Mumbai, India, 9. - 13. Dezember 2003. Lecture Notes in Computer Science. Berlin u.a.: Springer. pp. 99-112 [PDF, 326kB]


As XML is increasingly being used to represent information on the Web, query and reasoning languages for such data are needed. This article argues that in contrast to the navigational approach taken in particular by XPath and XQuery, a positional approach as used in the language Xcerpt is better suited for a straightforward visual representation. The constructs of the pattern- and rule-based query language Xcerpt are introduced and it is shown how the visual representation visXcerpt renders these constructs to form a visual query language for XML.

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