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» Efficient Processing of XML Tree Pattern Queries
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ICDE
2003
IEEE
122views Database» more  ICDE 2003»
14 years 10 months ago
XML Publishing: Look at Siblings too!
In order to publish a nested XML document from flat relational data, multiple SQL queries are often needed. The efficiency of publishing relies on how fast these queries can be ev...
Sihem Amer-Yahia, Yannis Kotidis, Divesh Srivastav...
JCSS
2007
107views more  JCSS 2007»
13 years 9 months ago
On the minimization of XML Schemas and tree automata for unranked trees
Automata for unranked trees form a foundation for XML schemas, querying and pattern languages. We study the problem of efficiently minimizing such automata. First, we study unrank...
Wim Martens, Joachim Niehren
SIGMOD
2007
ACM
146views Database» more  SIGMOD 2007»
14 years 9 months ago
Distributed query evaluation with performance guarantees
Partial evaluation has recently proven an effective technique for evaluating Boolean XPath queries over a fragmented tree that is distributed over a number of sites. What left ope...
Gao Cong, Wenfei Fan, Anastasios Kementsietsidis
ICDE
2005
IEEE
131views Database» more  ICDE 2005»
14 years 10 months ago
On the Sequencing of Tree Structures for XML Indexing
Sequence-based XML indexing aims at avoiding expensive join operations in query processing. It transforms structured XML data into sequences so that a structured query can be answ...
Haixun Wang, Xiaofeng Meng
VLDB
2006
ACM
124views Database» more  VLDB 2006»
14 years 9 months ago
Query optimization in XML structured-document databases
While the information published in the form of XML-compliant documents keeps fast mounting up, efficient and effective query processing and optimization for XML have now become mor...
Dunren Che, Karl Aberer, M. Tamer Özsu