8 search results - page 1 / 2 » Standard Deviation as a Query Hardness Estimator |
SPIRE
2010
Springer
13 years 9 months ago
2010
Springer
In this paper a new Query Performance Prediction method is introduced. This method is based on the hypothesis that different score distributions appear for ‘hard’ and ‘easyâ...
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
With the amount of data in current data warehouse databases growing steadily, random sampling is continuously gaining in importance. In particular, interactive analyses of large d...
PODS
2005
ACM
14 years 11 months ago
2005
ACM
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
GECCO
2007
Springer
14 years 5 months ago
2007
Springer
Recent research into single–objective continuous Estimation– of–Distribution Algorithms (EDAs) has shown that when maximum–likelihood estimations are used for parametric d...
CIKM
2008
Springer
14 years 27 days ago
2008
Springer
Although Locality-Sensitive Hashing (LSH) is a promising approach to similarity search in high-dimensional spaces, it has not been considered practical partly because its search q...