9683 search results - page 10 / 1937 » Query performance prediction |
JSS
2008
13 years 7 months ago
2008
Many state-of-the-art selectivity estimation methods use query feedback to maintain histogram buckets, thereby using the limited memory efficiently. However, they are "reacti...
RTSS
2006
IEEE
14 years 1 months ago
2006
IEEE
With the emergence of large wired and wireless sensor networks, many real-time applications need to operate on continuous unbounded data streams. At the same time, many of these s...
SIGIR
2009
ACM
14 years 2 months ago
2009
ACM
Long queries frequently contain many extraneous terms that hinder retrieval of relevant documents. We present techniques to reduce long queries to more effective shorter ones tha...
ECIR
2007
Springer
13 years 9 months ago
2007
Springer
We consider the issue of query performance, and we propose a novel method for automatically predicting the difficulty of a query. Unlike a number of existing techniques which are b...
ICASSP
2008
IEEE
14 years 2 months ago
2008
IEEE
This paper considers the problem of predictive fusion coding for storage of multiple spatio-temporally correlated sources so as to enable efficient selective retrieval of data fr...