Sciweavers

7607 search results - page 1476 / 1522
» Querying data provenance
Sort
View
BTW
2009
Springer
132views Database» more  BTW 2009»
15 years 2 months ago
A Bayesian Approach to Estimating the Selectivity of Conjunctive Predicates
: 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...
M. Heimel, Volker Markl, Keshava Murthy
EDBT
2009
ACM
133views Database» more  EDBT 2009»
15 years 2 months ago
Schema-conscious filtering of XML documents
In a publish-subscribe system based on filtering of XML documents, subscribers specify their interests with profiles expressed in the XPath language. The system processes a stre...
Panu Silvasti, Seppo Sippu, Eljas Soisalon-Soinine...
SSD
2001
Springer
128views Database» more  SSD 2001»
15 years 2 months ago
Creating Representations for Continuously Moving Regions from Observations
Recently there is much interest in moving objects databases, and data models and query languages have been proposed offering data types such as moving point and moving region toge...
Erlend Tøssebro, Ralf Hartmut Güting
PODS
1999
ACM
121views Database» more  PODS 1999»
15 years 2 months ago
Tracking Join and Self-Join Sizes in Limited Storage
Query optimizers rely on fast, high-quality estimates of result sizes in order to select between various join plans. Selfjoin sizes of relations provide bounds on the join size of...
Noga Alon, Phillip B. Gibbons, Yossi Matias, Mario...
WCRE
1999
IEEE
15 years 2 months ago
Chava: Reverse Engineering and Tracking of Java Applets
Java applets have been used increasingly on web sites to perform client-side processing and provide dynamic content. While many web site analysis tools are available, their focus ...
Jeffrey L. Korn, Yih-Farn Chen, Eleftherios Koutso...
« Prev « First page 1476 / 1522 Last » Next »