262 search results - page 31 / 53 » Spatio-temporal join selectivity |
VLDB
1992
ACM
13 years 11 months ago
1992
ACM
We propose an extended relational database model which can model both uncertainty and imprecision in data. This model is basedon Dempster-Shafertheory which has become popular in ...
SIGMOD
1989
ACM
13 years 11 months ago
1989
ACM
Machiavelli is a polymorphically typed programming language in the spirit of ML, but supports an extended method of type inferencing that makes its polymorphism more general and a...
VLDB
1990
ACM
13 years 11 months ago
1990
ACM
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
VLDB
1990
ACM
13 years 11 months ago
1990
ACM
Therequirementsfor amain memorydatastoragemodel are both compactnessand efficient processing for all database operations. The DBGraph storage model, proposed in this paper, achiev...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
Parallel database systems have to support the effective parallelization of complex queries in multi-user mode, i.e. in combination with inter-query/inter-transaction parallelism. ...