205 search results - page 10 / 41 » Optimizing Multiple Top-K Queries over Joins |
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Many web databases can be seen as providing partial and overlapping information about entities in the world. To answer queries effectively, we need to integrate the information abo...
TKDE
2010
13 years 2 months ago
2010
Adaptive join algorithms have recently attracted a lot of attention in emerging applications where data is provided by autonomous data sources through heterogeneous network environ...
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Recent years witnessed an increasing interest in researches in XML, partly due to the fact that XML has now become the de facto standard for data interchange over the internet. A ...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
We consider the problem of approximating sliding window joins over data streams in a data stream processing system with limited resources. In our model, we deal with resource cons...