383 search results - page 14 / 77 » Query Containment for Conjunctive Queries with Regular Expre... |
CIKM
2008
Springer
13 years 10 months ago
2008
Springer
Query processing techniques for XML data have focused mainly on tree-pattern queries (TPQs). However, the need for querying XML data sources whose structure is very complex or not...
TOCL
2002
13 years 8 months ago
2002
One important class of spatial database queries is the class of topological queries, that is, queries invariant under homeomorphisms. Westudy topological queries expressible in th...
VLDB
2001
ACM
14 years 1 months ago
2001
ACM
With the advent of XML as a standard for data representation and exchange on the Internet, storing and querying XML data becomes more and more important. Several XML query languag...
ESOP
2008
Springer
13 years 10 months ago
2008
Springer
Abstract. XML database query languages such as XQuery employ regular expression types with structural subtyping. Subtyping systems typically have two presentations, which should be...
ERCIMDL
1997
Springer
14 years 24 days ago
1997
Springer
Abstract. We present a model for complex documents possibly consisting of a hierarchically structured set of images or texts. Documents are represented both at the form level (as s...