817 search results - page 53 / 164 » Generating Efficient Plans for Queries Using Views |
AAAI
2007
13 years 10 months ago
2007
In this paper, we propose to mine query hierarchies from clickthrough data, which is within the larger area of automatic acquisition of knowledge from the Web. When a user submits...
ICDE
2002
IEEE
14 years 9 months ago
2002
IEEE
Web-based information systems provide to their users the ability to interleave querying and browsing during their information discovery efforts. The MIX system provides an API cal...
WWW
2001
ACM
14 years 8 months ago
2001
ACM
A wealth of information is available on the Web. But often, such data are hidden behind form interfaces which allow only a restrictive set of queries over the underlying databases...
VLDB
1997
ACM
13 years 12 months ago
1997
ACM
A data warehouse materializes views derived from data that may not reside at the warehouse. Maintaining these views e ciently in response to base updates is di cult, since it may ...
CP
2010
Springer
13 years 5 months ago
2010
Springer
We present two heuristics based on constraint technology that solve the problem of generating air traffic management contingency plans, which are used in the case of a catastrophic...