483 search results - page 87 / 97 » Evaluating Top-k Selection Queries |
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
The area of automatic selection of physical database design to optimize the performance of a relational database system based on a workload of SQL queries and updates has gained p...
SOSP
2009
ACM
14 years 4 months ago
2009
ACM
Data-intensive applications are increasingly designed to execute on large computing clusters. Grouped aggregation is a core primitive of many distributed programming models, and i...
ADBIS
2009
Springer
14 years 2 months ago
2009
Springer
Continuous queries applied over nonterminating data streams usually specify windows in order to obtain an evolving –yet restricted– set of tuples and thus provide timely result...
WEBI
2009
Springer
14 years 2 months ago
2009
Springer
—The key to Deep Web crawling is to submit promising keywords to query form and retrieve Deep Web content efficiently. To select keywords, existing methods make a decision based ...
IWPC
2007
IEEE
14 years 1 months ago
2007
IEEE
The paper addresses the problem of concept location in source code by presenting an approach which combines Formal Concept Analysis (FCA) and Latent Semantic Indexing (LSI). In th...