176 search results - page 31 / 36 » Supporting ranking queries on uncertain and incomplete data |
EDBT
2009
ACM
14 years 3 days ago
2009
ACM
Traditional bitmap indexes are utilized as a special type of primary or clustered indexes where the queries are answered by performing fast logical operations supported by hardwar...
DOLAP
2007
ACM
13 years 11 months ago
2007
ACM
Expressing preferences when querying databases is a natural way to avoid empty results and information flooding, and in general to rank results so that the user may first see the ...
PVLDB
2010
13 years 2 months ago
2010
Rule-based information extraction from text is increasingly being used to populate databases and to support structured queries on unstructured text. Specification of suitable info...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
With the amount of available text data in relational databases growing rapidly, the need for ordinary users to search such information is dramatically increasing. Even though the ...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Database queries are often exploratory and users often find their queries return too many answers, many of them irrelevant. Existing work either categorizes or ranks the results t...