664 search results - page 32 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
COCOON
2005
Springer
14 years 2 months ago
2005
Springer
Rocchio’s similarity-based relevance feedback algorithm, one of the most important query reformation methods in information retrieval, is essentially an adaptive supervised lear...
TSP
2008
13 years 8 months ago
2008
Abstract--This paper offers a new technique for spatially adaptive estimation. The local likelihood is exploited for nonparametric modeling of observations and estimated signals. T...
EDBT
2010
ACM
13 years 12 months ago
2010
ACM
The specification of schema mappings has proved to be time and resource consuming, and has been recognized as a critical bottleneck to the large scale deployment of data integrati...
EDBT
2002
ACM
14 years 8 months ago
2002
ACM
Abstract. Estimating the sizes of query results, and intermediate results, is crucial to many aspects of query processing. In particular, it is necessary for effective query optimi...
SIGIR
2008
ACM
13 years 8 months ago
2008
ACM
Relevance feedback, which traditionally uses the terms in the relevant documents to enrich the user's initial query, is an effective method for improving retrieval performanc...