483 search results - page 9 / 97 » Evaluating Top-k Selection Queries |
JIS
2006
13 years 7 months ago
2006
Query expansion terms are often used to enhance original query formulations in document retrieval. Such terms are usually selected from the entire documents or from windows or pas...
SSDBM
2003
IEEE
14 years 26 days ago
2003
IEEE
— Many novel spatio-temporal applications deal with moving objects. In such environments, a database typically maintains the initial position and the moving function for each obj...
CISIS
2009
IEEE
13 years 5 months ago
2009
IEEE
The volume of stream data delivered from different information sources is increasing. There are a variety of demands to utilize such stream data for applications. Stream processin...
ICDE
2004
IEEE
14 years 9 months ago
2004
IEEE
Queries with (equality or LIKE) selection predicates over string attributes are widely used in relational databases. However, state-of-the-art techniques for estimating selectivit...
ECIR
2010
Springer
13 years 9 months ago
2010
Springer
Query performance predictors are commonly evaluated by reporting correlation coefficients to denote how well the methods perform at predicting the retrieval performance of a set of...