220 search results - page 12 / 44 » Supporting Queries with Imprecise Constraints |
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Many location-based services require rich and expressive query language support for filtering large amounts of information. In prominent location-based services thousands of conti...
VLDB
2001
ACM
14 years 7 months ago
2001
ACM
Abstract In this paper we present a mechanism for approximately translating Boolean query constraints across heterogeneous information sources. Achieving the best translation is ch...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Efficient indexing techniques have been developed for the exact and approximate substructure search in large scale graph databases. Unfortunately, the retrieval problem of structu...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
As XML-based messages have become common in many client-server protocols, there is a need to protect application servers from invalid or dangerous messages. This leads to the XML ...
VLDB
1998
ACM
13 years 11 months ago
1998
ACM
: Structural queries constitute a special form of content-basedretrieval where the user specifiesa set of spatial constraints among query variables and asks for all configurations ...