89 search results - page 5 / 18 » On the Expressive Power of XQuery Fragments |
PODS
2002
ACM
15 years 9 months ago
2002
ACM
Research on information extraction from Web pages (wrapping) has seen much activity in recent times (particularly systems implementations), but little work has been done on formal...
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VLDB
2005
ACM
15 years 9 months ago
2005
ACM
Efficient querying of XML streams will be one of the fundamental features of next-generation information systems. In this paper we propose the TurboXPath path processor, which acce...
ADBIS
2004
Springer
15 years 2 months ago
2004
Springer
Abstract. We propose a descriptive high-level language XDTrans devoted to specify transformations over XML data. The language is based on unranked tree automata approach. In contra...
LICS
2010
IEEE
14 years 7 months ago
2010
IEEE
One of the major interests of finite model theory is to separate the expressive power of different logics or fragments of logics. In this paper, we define a variant of EhrenfeuchtF...
VLDB
2004
ACM
15 years 2 months ago
2004
ACM
XML languages, such as XQuery, XSLT and SQL/XML, employ XPath as the search and extraction language. XPath expressions often define complicated navigation, resulting in expensive...