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» Unlocking Keys for XML Trees
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ICDT
2007
ACM
105views Database» more  ICDT 2007»
14 years 2 months ago
Unlocking Keys for XML Trees
Abstract. We review key constraints in the context of XML as introduced by Buneman et al. We show that one of the proposed inference rules is not sound in general, and the axiomati...
Sven Hartmann, Sebastian Link
ADC
2003
Springer
139views Database» more  ADC 2003»
14 years 4 months ago
Deriving Relation Keys from XML Keys
Much work on XML data was around storage and querying and did not consider constraints of XML, especially keys. Since constraints have been proposed in many papers for XML, much r...
Qing Wang, Hongwei Wu, Jianchang Xiao, Aoying Zhou...
XSYM
2010
Springer
148views Database» more  XSYM 2010»
13 years 9 months ago
Promoting the Semantic Capability of XML Keys
Keys for XML data trees can uniquely identify nodes based on the data values on some of their subnodes, either in the entire tree or relatively to some selected subtrees. Such keys...
Flavio Ferrarotti, Sven Hartmann, Sebastian Link, ...
DEXA
2005
Springer
138views Database» more  DEXA 2005»
14 years 4 months ago
Full-Text and Structural XML Indexing on B+-Tree
XML query processing is one of the most active areas of database research. Although the main focus of past research has been the processing of structural XML queries, there are gro...
Toshiyuki Shimizu, Masatoshi Yoshikawa
WWW
2010
ACM
13 years 9 months ago
Evaluation Techniques for Generalized Path Pattern Queries on XML Data
Finding the occurrences of structural patterns in XML data is a key operation in XML query processing. Existing algorithms for this operation focus almost exclusively on path patt...
Xiaoying Wu, Dimitri Theodoratos, Stefanos Souldat...