664 search results - page 11 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
CIKM
2010
Springer
13 years 6 months ago
2010
Springer
Traditional interactive information retrieval systems function by creating inverted lists, or term indexes. For every term in the vocabulary, a list is created that contains the d...
BTW
2005
Springer
14 years 27 days ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
ECIR
2006
Springer
13 years 8 months ago
2006
Springer
Abstract. The following paper proposes a new kind of relevance feedback. It shows how so called query profiles can be employed for disambiguation and clarification. Query profiles ...
SSD
2001
Springer
13 years 11 months ago
2001
Springer
Several studies have focused on the efficient processing of simple spatial query types such as selections and spatial joins. Little work, however, has been done towards the optimiz...
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
Composite (or Complex) event processing (CEP) systems search sequences of incoming events for occurrences of userspecified event patterns. Recently, they have gained more attentio...