1611 search results - page 154 / 323 » Queries Independent of Updates |
OTM
2007
Springer
15 years 4 months ago
2007
Springer
In the last years, there has been an increasing interest in the performance of reasoning on the Semantic Web in presence of large ABoxes. Traditional reasoners make heavily use of ...
BTW
2003
Springer
15 years 3 months ago
2003
Springer
Abstract: In this paper, we study adaptive evaluation techniques for querying XMLbased electronic catalogs, and show, by means of experiments performed on real-world catalogs, that...
SEMWEB
2001
Springer
15 years 3 months ago
2001
Springer
Resource discovery is a problem common to almost all distributed systems. Instead of resulting in a one or a small number of discovery mechanisms, completely different and incompa...
PVLDB
2008
14 years 10 months ago
2008
This paper reports on the results of an independent evaluation of the techniques presented in the VLDB 2007 paper "Scalable Semantic Web Data Management Using Vertical Partit...
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ICDE
2007
IEEE
16 years 1 days ago
2007
IEEE
Queries containing outer joins are common in data warehousing applications. Materialized outer-join views could greatly speed up many such queries but most database systems do not...