467 search results - page 14 / 94 » Processing top k queries from samples |
SIGMOD
2000
ACM
14 years 1 months ago
2000
ACM
Testing an SQL database system by running large sets of deterministic or stochastic SQL statements is common practice in commercial database development. However, code defects oft...
WSDM
2009
ACM
14 years 4 months ago
2009
ACM
There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this...
ICASSP
2011
IEEE
13 years 29 days ago
2011
IEEE
We study the spatiotemporal sampling of a diffusion field generated by K point sources, aiming to fully reconstruct the unknown initial field distribution from the sample measur...
EDBT
2009
ACM
13 years 7 months ago
2009
ACM
Stream applications gained significant popularity over the last years that lead to the development of specialized stream engines. These systems are designed from scratch with a di...
SIGMOD
2007
ACM
14 years 9 months ago
2007
ACM
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...