929 search results - page 6 / 186 » Answering imprecise database queries: a novel approach |
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Incompleteness due to missing attribute values (aka "null values") is very common in autonomous web databases, on which user accesses are usually supported through media...
KES
2004
Springer
14 years 27 days ago
2004
Springer
When the available information is imperfect, it is often desirable to represent it in the database, so that it can be used to answer queries of interest as much as possible. The da...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
The rapid adoption of XML as the standard for data representation and exchange foreshadows a massive increase in the amounts of XML data collected, maintained, and queried over th...
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
Existing keyword-search systems in relational databases require users to submit a complete query to compute answers. Often users feel "left in the dark" when they have l...