486 search results - page 93 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
123
click to vote
BTW
2009
Springer
15 years 6 months ago
2009
Springer
: Cost-based optimizers in relational databases make use of data statistics to estimate intermediate result cardinalities. Those cardinalities are needed to estimate access plan co...
108
click to vote
ICDE
2009
IEEE
15 years 8 months ago
2009
IEEE
— We present SMART, a self-tuning, bandwidth-aware monitoring system that maximizes result precision of continuous aggregate queries over dynamic data streams. While prior approa...
147
click to vote
SIGMOD
2012
ACM
13 years 3 months ago
2012
ACM
It is often highly valuable for organizations to have their data analyzed by external agents. However, any program that computes on potentially sensitive data risks leaking inform...
101
click to vote
WWW
2008
ACM
16 years 2 months ago
2008
ACM
In this poster, we present the P2P XML data localization layer of XLive, an XQuery mediation system developed at University of Versailles [2]. A major challenge in the evaluation ...
129
click to vote
EDBT
2009
ACM
15 years 6 months ago
2009
ACM
Text corpora are often enhanced by additional metadata which relate real-world entities, with each document in which such entities are discussed. Such relationships are typically ...