2850 search results - page 27 / 570 » Answering Queries using Humans, Algorithms and Databases |
SIGMOD
1999
ACM
14 years 23 days 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...
VLDB
2007
ACM
14 years 2 months ago
2007
ACM
The general problem of answering top-k queries can be modeled using lists of data items sorted by their local scores. The most efficient algorithm proposed so far for answering to...
VLDB
1987
ACM
13 years 12 months ago
1987
ACM
Severalmethodshavebeenproposedto compile recursive Datalog programs. The most well-known perform a rewriting of rules using MAGIC or PROBLEM predicates in order to push selections...
PODS
1998
ACM
14 years 21 days ago
1998
ACM
We study the complexity of the problem of answering queries using materialized views. This problem has attracted a lot of attention recently because of its relevance in data integ...
ICDT
2003
ACM
14 years 1 months ago
2003
ACM
In an on-line statistical database, the query system should leave unanswered queries asking for sums that could lead to the disclosure of confidential data. To check that, every su...