6650 search results - page 393 / 1330 » Mutating database queries |
242
click to vote
SIGMOD
2006
ACM
16 years 5 months ago
2006
ACM
Geographic web search engines allow users to constrain and order search results in an intuitive manner by focusing a query on a particular geographic region. Geographic search tec...
174
click to vote
SIGMOD
2004
ACM
16 years 5 months ago
2004
ACM
An effective query optimizer finds a query plan that exploits the characteristics of the source data. In data integration, little is known in advance about sources' propertie...
151
click to vote
EDBT
2002
ACM
16 years 5 months ago
2002
ACM
Managing multiple versions of XML documents represents a critical requirement for many applications. Also, there has been much recent interest in supporting complex queries on XML ...
176
click to vote
EDBT
2006
ACM
16 years 5 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...
156
click to vote
EDBT
2010
ACM
15 years 12 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 ...