1168 search results - page 1 / 234 » Optimization strategies for complex queries |
SIGIR
2005
ACM
13 years 10 months ago
2005
ACM
Previous research into the efficiency of text retrieval systems has dealt primarily with methods that consider inverted lists in sequence; these methods are known as term-at-a-tim...
SSDBM
2009
IEEE
13 years 11 months ago
2009
IEEE
Scientific experiments produce large volumes of data represented as complex objects that describe independent events such as particle collisions. Scientific analyses can be express...
VLDB
1991
ACM
13 years 8 months ago
1991
ACM
In order to cope efficiently with simple or complex queries as well as different application requirements (e.g., ad-hoc versus repetitive queries), a query optimizer ought to supp...
SEBD
1996
13 years 6 months ago
1996
Abstract. To select an optimal query evaluation strategy for a path query in an object-oriented database system one has to exploit the available index structures on the path. In a ...
DEBU
2008
13 years 5 months ago
2008
Query optimization is an inherently complex problem, and validating the correctness and effectiveness of a query optimizer can be a task of comparable complexity. The overall proc...