1445 search results - page 71 / 289 » XPath query containment |
COMPGEOM
2007
ACM
15 years 1 months ago
2007
ACM
We present a data structure for answering approximate shortest path queries in a planar subdivision from a fixed source. Let 1 be a real number. Distances in each face of this sub...
EDBT
2004
ACM
15 years 10 months ago
2004
ACM
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
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ICDE
2007
IEEE
15 years 11 months ago
2007
IEEE
Optimizing nested queries is an intricate problem. It becomes even harder if in a nested query the linking predicate or the correlation predicate occurs disjunctively. We present ...
TMRA
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. This paper describes a query algebra for tolog, a query language for Topic Maps inspired by Prolog and very similar to Datalog. The language is based on binding variables...
TDM
2004
14 years 11 months ago
2004
Document-centric XML collections contain text-rich documents, marked up with XML tags. The tags add lightweight semantics to the text. Querying such collections calls for a hybrid...