664 search results - page 31 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
ISCI
2007
13 years 8 months ago
2007
Selectivity estimation is an important step of query optimization in a database management system, and multidimensional histogram techniques have proved promising for selectivity ...
VLDB
2007
ACM
14 years 2 months ago
2007
ACM
There are many emerging database applications that require accurate selectivity estimation of approximate string matching queries. Edit distance is one of the most commonly used s...
ICIP
2009
IEEE
13 years 6 months ago
2009
IEEE
In this paper we present an algorithm which uses adaptive selection of low-level features for main subject detection. The algorithm first computes low-level features such as contr...
ML
2002
ACM
13 years 8 months ago
2002
ACM
We present a general approach to model selection and regularization that exploits unlabeled data to adaptively control hypothesis complexity in supervised learning tasks. The idea ...
ECIR
2003
Springer
13 years 10 months ago
2003
Springer
Abstract. Relevance feedback (RF) has been an effective query modification approach to improving the performance of information retrieval (IR) by interactively asking a user whet...