404 search results - page 17 / 81 » Querying Data under Access Limitations |
SIGMOD
2000
ACM
14 years 5 hour ago
2000
ACM
Commercial relational database systems today provide only limited temporal support. To address the needs of applications requiring rich temporal data and queries, we have built TI...
ICDT
1999
ACM
13 years 12 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
DAWAK
2001
Springer
14 years 4 days ago
2001
Springer
Tree based indexing structures like -trees, ·-trees, Bitmap indexes and Ê-trees have become essential for getting good performance when accessing vast datasets. However, most dat...
ISMB
1998
13 years 9 months ago
1998
Existing query interfaces for biological databases are either based on fixed forms or textual query languages. Users of a fixed form-based query interface are limited to performin...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Aggregate monitoring over data streams is attracting more and more attention in research community due to its broad potential applications. Existing methods suffer two problems, 1...