439 search results - page 41 / 88 » Unnesting Arbitrary Queries |
DASFAA
2005
IEEE
14 years 3 months ago
2005
IEEE
Peer-to-peer (P2P) computing is gaining more and more significance due to its widespread use currently and potential deployments in future applications. In this paper, we propose ...
ICDE
2007
IEEE
14 years 11 months ago
2007
IEEE
Linear optimization queries retrieve the top-K tuples in a sliding window of a data stream that maximize/minimize the linearly weighted sums of certain attribute values. To effici...
IEICET
2008
13 years 10 months ago
2008
We consider the polynomial time learnability of finite unions of ordered tree patterns with internal structured variables, in the query learning model of Angluin (1988). An ordered...
WWW
2010
ACM
14 years 4 months ago
2010
ACM
Web crawlers are increasingly used for focused tasks such as the extraction of data from Wikipedia or the analysis of social networks like last.fm. In these cases, pages are far m...
MIS
2004
Springer
14 years 3 months ago
2004
Springer
When similarity queries over multimedia databases are processed by splitting the overall query condition into a set of sub-queries, the problem of how to efficiently and effectiv...