347 search results - page 43 / 70 » Foundations of Preferences in Database Systems |
WWW
2008
ACM
14 years 11 months ago
2008
ACM
This paper presents PrivacyGrid - a framework for supporting anonymous location-based queries in mobile information delivery systems. The PrivacyGrid framework offers three unique...
SIGMOD
1998
ACM
14 years 2 months ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
PODS
2008
ACM
14 years 10 months ago
2008
ACM
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
CIDR
2007
13 years 11 months ago
2007
Information ubiquity has created a large crowd of users (most notably scientists), who could employ DBMS technology to process and share their data more effectively. Still, this ...
PODS
2002
ACM
14 years 10 months ago
2002
ACM
Research on information extraction from Web pages (wrapping) has seen much activity in recent times (particularly systems implementations), but little work has been done on formal...