6905 search results - page 894 / 1381 » Querying Multidimensional Databases |
192
click to vote
SIGIR
2009
ACM
16 years 25 days ago
2009
ACM
When search is against structured documents, it is beneficial to extract information from user queries in a format that is consistent with the backend data structure. As one step...
174
click to vote
KDD
2004
ACM
16 years 6 months ago
2004
ACM
To enable information integration, schema matching is a critical step for discovering semantic correspondences of attributes across heterogeneous sources. While complex matchings ...
191
click to vote
CIKM
2009
Springer
16 years 28 days ago
2009
Springer
We study the problem of continuous monitoring of top-k queries over multiple non-synchronized streams. Assuming a sliding window model, this general problem has been a well addres...
199
click to vote
DMKD
2004
ACM
15 years 11 months ago
2004
ACM
To enable information integration, schema matching is a critical step for discovering semantic correspondences of attributes across heterogeneous sources. As a new attempt, this p...
167
click to vote
VLDB
2001
ACM
15 years 10 months ago
2001
ACM
Estimating the number of distinct values is a wellstudied problem, due to its frequent occurrence in queries and its importance in selecting good query plans. Previous work has sh...