116 search results - page 8 / 24 » Database querying under changing preferences |
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...
SDMW
2004
Springer
14 years 25 days ago
2004
Springer
For many data providers, the “crown jewels” of their business are the data that they have organized. If someone could copy their entire database, it would be a competitive cata...
HOTSWUP
2009
ACM
14 years 5 days ago
2009
ACM
The complexity, cost, and down-time currently created by the database schema evolution process is the source of incessant problems in the life of information systems and a major s...
ADBIS
2004
Springer
14 years 27 days ago
2004
Springer
Repairing a database means making the database consistent by applying changes that are as small as possible. Nearly all approaches to repairing have assumed deletions and insertion...
AAAI
2007
13 years 9 months ago
2007
Planning under uncertainty involves two distinct sources of uncertainty: uncertainty about the effects of actions and uncertainty about the current state of the world. The most wi...