443 search results - page 65 / 89 » System P: Completeness-driven Query Answering in Peer Data M... |
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...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
SIGMOD
1998
ACM
13 years 11 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 ...
SAC
2008
ACM
13 years 7 months ago
2008
ACM
In this paper, we focus on an aspect of distributed XQuery processing that involves data exchanges between processor elements. We first address problems of distributed XML query p...
HICSS
1998
IEEE
13 years 11 months ago
1998
IEEE
Typically, users submit very simple search queries to digital document data collections. Often these queries can result in extremely broad answers or answers in which document rel...