2217 search results - page 77 / 444 » Rank-aware Query Optimization |
120
click to vote
VLDB
2004
ACM
15 years 8 months ago
2004
ACM
This paper presents a novel and complementary technique to optimize an XPath query by minimizing its wildcard steps. Our approach is based on using a general composite axis called...
237
click to vote
ICDE
2001
IEEE
16 years 3 months ago
2001
IEEE
Semi-join reducers were introduced in the late seventies as a means to reduce the communication costs of distributed database systems. Subsequent work in the eighties showed, howe...
128
click to vote
PVLDB
2010
15 years 29 days ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...
223
Voted
ICDE
2009
IEEE
16 years 4 months ago
2009
IEEE
A Business Process (BP) consists of some business activities undertaken by one or more organizations in pursuit of some business goal. Tools for querying and analyzing BP specifica...
215
Voted
VLDB
2001
ACM
16 years 2 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessin...