736 search results - page 105 / 148 » Answering Imprecise Queries over Web Databases |
EON
2007
13 years 9 months ago
2007
We describe an approach to create a synthetic workload for large scale extensional query answering experiments. The workload comprises multiple interrelated domain ontologies, data...
VLDB
2007
ACM
14 years 1 months ago
2007
ACM
Efficient management of RDF data is an important factor in realizing the Semantic Web vision. Performance and scalability issues are becoming increasingly pressing as Semantic Web...
ER
2008
Springer
13 years 9 months ago
2008
Springer
Access limitations may occur when querying data sources over the web or heterogeneous data sources presented as relational tables: this happens, for instance, in Data Exchange and ...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
In this paper, we study query evaluation on Active XML documents (AXML for short), a new generation of XML documents that has recently gained popularity. AXML documents are XML do...
XSYM
2004
Springer
14 years 1 months ago
2004
Springer
In this paper, we describe an approach to boosting the performance of an XQuery engine by identifying and exploiting opportunities to share processing both within and across XML qu...