1168 search results - page 139 / 234 » Optimization strategies for complex queries |
DMIN
2008
14 years 11 months ago
2008
The knowledge discovery process encounters the difficulties to analyze large amount of data. Indeed, some theoretical problems related to high dimensional spaces then appear and de...
157
click to vote
PODS
2009
ACM
15 years 10 months ago
2009
ACM
The B-tree is a fundamental external index structure that is widely used for answering one-dimensional range reporting queries. Given a set of N keys, a range query can be answere...
CGO
2005
IEEE
15 years 3 months ago
2005
IEEE
The growing complexity of modern processors has made the generation of highly efficient code increasingly difficult. Manual code generation is very time consuming, but it is oft...
155
click to vote
ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Traditional approaches to rule-based information extraction (IE) have primarily been based on regular expression grammars. However, these grammar-based systems have difficulty scal...
171
click to vote
ICDE
2005
IEEE
15 years 11 months ago
2005
IEEE
Maintaining materialized views that have join conditions between arbitrary pairs of data sources possibly with cycles is critical for many applications. In this work, we model vie...