294 search results - page 30 / 59 » Approximate query processing using wavelets |
VLDB
2011
ACM
13 years 2 months ago
2011
ACM
Uncertain data is inherent in a few important applications such as environmental surveillance and mobile object tracking. Top-k queries (also known as ranking queries) are often n...
SDM
2012
SIAM
11 years 10 months ago
2012
SIAM
Many high-profile applications pose high-dimensional nearest-neighbor search problems. Yet, it still remains difficult to achieve fast query times for state-of-the-art approache...
CGF
2002
13 years 7 months ago
2002
We have shown how to construct multiresolution structures for reversing subdivision rules using global least squares models 16. As a result, semiorthogonal wavelet systems have al...
WWW
2010
ACM
14 years 2 months ago
2010
ACM
In this paper, we address the problem of database selection for XML document collections, that is, given a set of collections and a user query, how to rank the collections based o...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Database selection is an important step when searching over large numbers of distributed text databases. The database selection task relies on statistical summaries of the databas...