875 search results - page 92 / 175 » Querying XML Data with SPARQL |
CIKM
2009
Springer
14 years 1 months ago
2009
Springer
Answering queries using views is a well-established technique in databases. In this context, two outstanding problems can be formulated. The first one consists in deciding whethe...
ICDE
2004
IEEE
14 years 10 months ago
2004
IEEE
XML and other types of semi-structured data are typically represented by a labeled directed graph. To speed up path expression queries over the graph, a variety of structural inde...
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
The emergence of database languages with side effects, notably for XML, raises significant challenges for database compilers and optimizers. In this paper, we extend an algebra fo...
ADBIS
2007
Springer
14 years 3 months ago
2007
Springer
This paper describes a new XML compression scheme that offers both high compression ratios and short query response time. Its core is a fully reversible transform featuring substit...
DASFAA
2010
IEEE
13 years 9 months ago
2010
IEEE
Achieving data security over cooperating web services is becoming a reality, but existing XML access control architectures do not consider this federated service computing. In this...