9683 search results - page 428 / 1937 » Query performance prediction |
144
click to vote
AICT
2006
IEEE
15 years 8 months ago
2006
IEEE
We present NetTraveler a database middleware system for WANs that is designed to efficiently run queries over sites that are either mobile clients or enterprise servers. NetTravel...
138
click to vote
VLDB
2000
ACM
15 years 8 months ago
2000
ACM
When a data warehouse is loaded at night and queried during the day, there is no requirement for concurrent update and querying. However there are a number of situations where con...
159
Voted
VLDB
1995
ACM
15 years 8 months ago
1995
ACM
Efficient processing of aggregation queries is essential for decision support applications. This paper describes a class of query transformations, called eager aggregation and lat...
133
click to vote
VLDB
2002
ACM
15 years 4 months ago
2002
ACM
Data warehouses offer a compromise between freshness of data and query evaluation times. However, a fixed preference ratio between these two variables is too undifferentiated. Wit...
157
click to vote
SIGIR
2008
ACM
15 years 3 months ago
2008
ACM
Results caching is an efficient technique for reducing the query processing load, hence it is commonly used in real search engines. This technique, however, bounds the maximum hit...