320 search results - page 22 / 64 » A Theory of Spatio-Temporal Database Queries |
PODS
2004
ACM
14 years 7 months ago
2004
ACM
We present the Lixto project, which is both a research project in database theory and a commercial enterprise that develops Web data extraction (wrapping) and Web service definiti...
INFORMATICALT
2008
13 years 7 months ago
2008
Abstract. The study of databases began with the design of efficient storage and data sharing techniques for large amount of data. This paper concerns the processing of imprecision ...
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
Empowering users to access databases using simple keywords can relieve the users from the steep learning curve of mastering a structured query language and understanding complex a...
PODS
1995
ACM
13 years 11 months ago
1995
ACM
Databases are often incomplete because of the presence of disjunctive information, due to con icts, partial knowledge and other reasons. Queries against such databases often ask q...
LPNMR
2005
Springer
14 years 1 months ago
2005
Springer
We introduce a declarative approach for a coherent composition of autonomous databases. For this we use ID-logic, a formalism that extends classical logic with inductive definitio...