542 search results - page 63 / 109 » An Effective SPARQL Support over Relational Databases |
ICDE
1993
IEEE
14 years 25 days ago
1993
IEEE
Emerging database application domains demand not only new functionality but also high performance. To satisfy these two requirements, the Volcano project provides efficient, exten...
WWW
2001
ACM
14 years 9 months ago
2001
ACM
A wealth of information is available on the Web. But often, such data are hidden behind form interfaces which allow only a restrictive set of queries over the underlying databases...
SIGMOD
2003
ACM
14 years 8 months ago
2003
ACM
With the growing importance of XML in data exchange, much research has been done in providing flexible query facilities to extract data from structured XML documents. In this pape...
ICDE
2002
IEEE
14 years 10 months ago
2002
IEEE
We propose a novel index structure, termed XTrie, that supports the efficient filtering of XML documents based on XPath expressions. Our XTrie index structure offers several novel...
OSDI
1994
ACM
13 years 10 months ago
1994
ACM
This paper presents lottery scheduling, a novel randomized resource allocation mechanism. Lottery scheduling provides efficient, responsive control over the relative execution rat...