3368 search results - page 126 / 674 » The Complexity of Query Reliability |
VLDB
2006
ACM
14 years 10 months ago
2006
ACM
In this paper we study the following problem. Given a database and a set of queries, we want to find a set of views that can compute the answers to the queries, such that the amoun...
EDBT
2006
ACM
14 years 10 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
EDBT
2008
ACM
14 years 10 months ago
2008
ACM
In this paper we study the problem of mining all frequent queries in a given database table, a problem known to be intractable even for conjunctive queries. We restrict our attent...
EDBT
2008
ACM
14 years 10 months ago
2008
ACM
A form-based query interface is usually the preferred means to provide an unsophisticated user access to a database. Not only is such an interface easy to use, requiring no techni...
EDBT
2010
ACM
14 years 4 months ago
2010
ACM
The wide adaptation of GPS and cellular technologies has created many applications that collect and maintain large repositories of data in the form of trajectories. Previous work ...