366 search results - page 27 / 74 » Efficient Query Reformulation in Peer-Data Management System... |
IJOCI
2010
13 years 4 months ago
2010
We present a time-efficient approach to index objects moving on the plane to efficiently answer range queries about their future positions. Each object is moving with non small ve...
CORR
2006
Springer
13 years 7 months ago
2006
Springer
We present a decomposition-based approach to managing probabilistic information. We introduce world-set decompositions (WSDs), a space-efficient and complete representation system ...
SIGMOD
2010
ACM
14 years 11 days ago
2010
ACM
Parameterized queries are commonly used in database applications. In a parameterized query, the same SQL statement is potentially executed multiple times with different parameter ...
ICEIS
2009
IEEE
14 years 2 months ago
2009
IEEE
Today XML is an essential technology for knowledge management within enterprises and dissemination of data over the Web. Therefore the efficient evaluation of XML queries has been ...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
Reverse skyline queries over uncertain databases have many important applications such as sensor data monitoring and business planning. Due to the existence of uncertainty in many...