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» On the Expressive Power of XQuery Fragments
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96
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BNCOD
2009
145views Database» more  BNCOD 2009»
14 years 10 months ago
A Study of a Positive Fragment of Path Queries: Expressiveness, Normal Form, and Minimization
We study the expressiveness of a positive fragment of path queries, denoted Path+ , on node-labeled trees documents. The expressiveness of Path+ is studied from two angles. First, ...
Yuqing Wu, Dirk Van Gucht, Marc Gyssens, Jan Pared...
71
Voted
PEPM
2007
ACM
15 years 3 months ago
Bidirectional interpretation of XQuery
XQuery is a powerful functional language to query XML data. This paper presents a bidirectional interpretation of XQuery to address the problem of updating XML data through materi...
Dongxi Liu, Zhenjiang Hu, Masato Takeichi
119
Voted
DOCENG
2004
ACM
15 years 2 months ago
Querying XML documents by dynamic shredding
With the wide adoption of XML as a standard data representation and exchange format, querying XML documents becomes increasingly important. However, relational database systems co...
Hui Zhang 0003, Frank Wm. Tompa
81
Voted
SIGMOD
2004
ACM
156views Database» more  SIGMOD 2004»
15 years 9 months ago
Tree Logical Classes for Efficient Evaluation of XQuery
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
Stelios Paparizos, Yuqing Wu, Laks V. S. Lakshmana...
SAC
2009
ACM
15 years 4 months ago
Runtime monitoring of web service choreographies using streaming XML
A wide range of web service choreography constraints on the content and sequentiality of messages can be translated into Linear Temporal Logic (LTL). Although they can be statical...
Sylvain Hallé, Roger Villemaire