6740 search results - page 122 / 1348 » Querying Databases with Taxonomies |
179
click to vote
DEXA
2003
Springer
15 years 11 months ago
2003
Springer
Query optimizers in current database management systems (DBMS) often face problems such as intolerably long optimization time and/or poor optimization results when optimizing compl...
176
click to vote
SIGMOD
1999
ACM
15 years 10 months ago
1999
ACM
We address the problem of query rewriting for TSL, a language for querying semistructured data. We develop and present an algorithm that, given a semistructured query q and a set ...
179
click to vote
VLDB
2002
ACM
15 years 6 months ago
2002
ACM
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize...
152
click to vote
VLDB
1991
ACM
15 years 10 months ago
1991
ACM
The development of a distributed database systemrequires effective solutions to many complex and interrelated design problems. The cost dependenciesbetween query optimization and ...
209
click to vote
ICDE
2010
IEEE
16 years 1 months ago
2010
IEEE
— Finding the k nearest neighbors (kNN) of a query point, or a set of query points (kNN-Join) are fundamental problems in many application domains. Many previous efforts to solve...