508 search results - page 25 / 102 » Bringing Order to Query Optimization |
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
The skyline of a set of d-dimensional points contains the points that are not dominated by any other point on all dimensions. Skyline computation has recently received considerabl...
ICDM
2007
IEEE
14 years 2 months ago
2007
IEEE
Data mining algorithms use various Trie and bitmap-based representations to optimize the support (i.e., frequency) counting performance. In this paper, we compare the memory requi...
DEXA
1995
Springer
13 years 11 months ago
1995
Springer
Abstract. The object-oriented database management systems store references to objects (implicit joins, precomputed joins), and use path expressions in query languages. One way of e...
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
There has been interest recently in skyline queries, also called Pareto queries, on relational databases. Relational query languages do not support search for "best" tupl...
PODS
2003
ACM
14 years 7 months ago
2003
ACM
In this paper we consider general path constraints for semistructured databases. Our general constraints do not suffer from the limitations of the path constraints previously stud...