121 search results - page 7 / 25 » Random Sampling from Database Files: A Survey |
SIGMOD
2000
ACM
13 years 11 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...
PVLDB
2008
13 years 6 months ago
2008
Many search engines and other web applications suggest auto-completions as the user types in a query. The suggestions are generated from hidden underlying databases, such as query...
CIKM
2010
Springer
13 years 5 months ago
2010
Springer
In image retrieval, most existing approaches that incorporate local features produce high dimensional vectors, which lead to a high computational and data storage cost. Moreover, ...
PSD
2010
Springer
13 years 5 months ago
2010
Springer
In survey statistics, simulation studies are usually performed by repeatedly drawing samples from population data. Furthermore, population data may be used in courses on survey sta...
SIGMOD
2010
ACM
13 years 12 months ago
2010
ACM
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...