320 search results - page 12 / 64 » A Theory of Spatio-Temporal Database Queries |
DEXA
2000
Springer
13 years 11 months ago
2000
Springer
This paper is mainly concerned with the extension of database management systems querying capabilities, so that users may address queries involving preferences and get discriminate...
DBPL
2007
Springer
14 years 1 months ago
2007
Springer
Data streams are modeled as infinite or finite sequences of data elements coming from an arbitrary but fixed universe. The universe can have various built-in functions and predi...
EDBT
1990
ACM
13 years 11 months ago
1990
ACM
Deductive Databases are coming of age with the emergence of efficient and easy to use systems that support queries, reasoning, and application development on databases through dec...
ICDT
1990
ACM
13 years 11 months ago
1990
ACM
Ordinary logical implication is not enough for answering queries in a logic database, since especially negative information is only implicitly represented in the database state. M...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
We review the notion of hypertree width, a measure of the degree of cyclicity of hypergraphs that is useful for identifying and solving efficiently easy instances of hard problems...