36 search results - page 3 / 8 » Exact and Approximate Aggregation in Constraint Query |
SIGMOD
1999
ACM
13 years 9 months ago
1999
ACM
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
IS
2008
13 years 5 months ago
2008
Consistent query answering is the problem of characterizing and computing the semantically correct answers to queries from a database that may not satisfy certain integrity constr...
WAIM
2009
Springer
13 years 12 months ago
2009
Springer
Large amount of uncertain data is inherent in many novel and important applications such as sensor data analysis and mobile data management. A probabilistic threshold range aggrega...
VLDB
2000
ACM
13 years 8 months ago
2000
ACM
Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of ...
EDBT
2012
ACM
11 years 7 months ago
2012
ACM
Record linkage analysis, which matches records referring to the same real world entities from different data sets, is an important task in data integration. Uncertainty often exi...