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PODS
2006
ACM
88views Database» more  PODS 2006»
14 years 4 months ago
Structural characterizations of the semantics of XPath as navigation tool on a document
Given a document D in the form of an unordered labeled tree, we study the expressibility on D of various fragments of XPath, the core navigational language on XML documents. We gi...
Marc Gyssens, Jan Paredaens, Dirk Van Gucht, Georg...
SIGMOD
2005
ACM
114views Database» more  SIGMOD 2005»
14 years 4 months ago
Semantic characterizations of navigational XPath
We give semantic characterizations of the expressive power of navigational XPath (also called Core XPath) in terms of first order logic. XPath can be used to specify sets of nodes...
Maarten Marx, Maarten de Rijke
ICDAR
2007
IEEE
13 years 11 months ago
A Proposition of Retrieval Tools for Historical Document Images Libraries
In this article, we propose a method of characterization of pictures of old documents based on a texture approach. This characterization is carried out with the help of a multires...
Nicholas Journet, Jean-Yves Ramel, Rémy Mul...
WEBDB
2004
Springer
125views Database» more  WEBDB 2004»
13 years 10 months ago
Best-Match Querying from Document-Centric XML
On the Web, there is a pervasive use of XML to give lightweight semantics to textual collections. Such documentcentric XML collections require a query language that can gracefully...
Jaap Kamps, Maarten Marx, Maarten de Rijke, Bö...
PEPM
2011
ACM
12 years 7 months ago
Calculating tree navigation with symmetric relational zipper
Navigating through tree structures is a core operation in tree processing programs. Most notably, XML processing programs intensively use XPath, the path specification language t...
Yuta Ikeda, Susumu Nishimura