136 search results - page 1 / 28 » Optimization and Dataflow Algorithms for Nested Tree Queries |
VLDB
1989
ACM
13 years 9 months ago
1989
ACM
BDA
2004
13 years 7 months ago
2004
XQuery is the emerging standard for querying XML data sources. XLive is a light XML/XQuery mediator developed at University of Versailles whose engine processes an XML algebra der...
SIGMOD
2005
ACM
14 years 5 months ago
2005
ACM
Nested Intervals generalize Nested Sets. They are immune to hierarchy reorganization problem. They allow answering ancestor path hierarchical queries algorithmically - without acc...
SIGMOD
2006
ACM
14 years 5 months ago
2006
ACM
We present and analyze an algorithm for equivalent rewriting of XQuery queries using XQuery views, which is complete for a large class of XQueries featuring nested FLWR blocks, XM...
MFCS
2009
Springer
14 years 9 days ago
2009
Springer
We study visibly pushdown automata (VPA) models for expressing and evaluating queries, expressed using MSO formulas, on words with a nesting structure (like XML documents). We de�...