777 search results - page 90 / 156 » Optimization of Relational Preference Queries |
STOC
2009
ACM
14 years 10 months ago
2009
ACM
A mechanism for releasing information about a statistical database with sensitive data must resolve a trade-off between utility and privacy. Publishing fully accurate information ...
WWW
2006
ACM
14 years 10 months ago
2006
ACM
We present an empirical evaluation and comparison of two content extraction methods in HTML: absolute XPath expressions and relative XPath expressions. We argue that the relative ...
JACM
2008
13 years 10 months ago
2008
XML queries are usually expressed by means of XPath expressions identifying portions of the selected documents. An XPath expression defines a way of navigating an XML tree and ret...
DEXAW
1999
IEEE
14 years 2 months ago
1999
IEEE
This paper describes an algebra for use with parallel object databases, and in particular ODMG compliant databases with OQL. Although there have been many proposals for parallel r...
SEDE
2010
13 years 8 months ago
2010
Enterprise-level applications are becoming complex with the need for event and stream processing, multiple query processing and data analysis over heterogeneous data sources such ...