6974 search results - page 343 / 1395 » Querying Semi-Structured Data |
214
click to vote
DBPL
2001
Springer
15 years 11 months ago
2001
Springer
Abstract. We address a fundamental question concerning spatio-temporal database systems: “What are exactly spatio-temporal queries?” We define spatio-temporal queries to be co...
197
click to vote
SSDBM
1998
IEEE
15 years 11 months ago
1998
IEEE
We address the issue of designing effective query languages for OLAP databases. The basis of our investigation is MD, a new data model for multidimensional databases that, unlike ...
180
click to vote
KDD
1994
ACM
15 years 11 months ago
1994
ACM
Semantic query optimization can dramatically speed up database query answering by knowledge intensive reformulation. But the problem of how to learn required semantic rules has no...
170
click to vote
DASFAA
2004
IEEE
15 years 10 months ago
2004
IEEE
Data and computations of a CAD system have been wrapped by a mediator system using CORBA's IIOP Protocol. This allows ad hoc declarative mediator queries to be translated into...
196
click to vote
VLDB
1995
ACM
15 years 10 months ago
1995
ACM
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering and query rewrite (JOQR) followed by parallelization. We focus on t...