664 search results - page 17 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
IDEAS
2005
IEEE
14 years 29 days ago
2005
IEEE
Adaptive operator scheduling algorithms for continuous query processing are usually designed to serve a single performance objective, such as minimizing memory usage or maximizing...
JCO
2010
13 years 5 months ago
2010
Rocchio’s similarity-based relevance feedback algorithm, one of the most important query reformation methods in information retrieval, is essentially an adaptive supervised lear...
RAS
2008
13 years 6 months ago
2008
In this paper, we tackle the problem of unsupervised selection and posterior recognition of visual landmarks in images sequences acquired by an indoor mobile robot. This is a high...
AMKM
2003
Springer
14 years 18 days ago
2003
Springer
This research investigates a unique Indexing Structure and Navigational Interface which integrates (1) ontology-driven knowledge-base (2) statistically derived indexing parameters...
ICDE
2000
IEEE
14 years 8 months ago
2000
IEEE
Optimizing queries that involve operations on spatial data requires estimating the selectivity and cost of these operations. In this paper, we focus on estimating the cost of spat...