Sciweavers

9683 search results - page 30 / 1937
» Query performance prediction
Sort
View
ICDE
2002
IEEE
112views Database» more  ICDE 2002»
14 years 10 months ago
Design and Evaluation of Alternative Selection Placement Strategies in Optimizing Continuous Queries
In this paper, we design and evaluate alternative selection placement strategies for optimizing a very large number of continuous queries in an Internet environment. Two grouping ...
Jianjun Chen, David J. DeWitt, Jeffrey F. Naughton
ICWN
2003
13 years 10 months ago
A Framework for Evaluating Effects of Channel Prediction Inaccuracy on the Performance of Channel Adaptive Techniques
—Adapting transmission parameters to the future channel state is an appealing approach to improve efficiency in wireless communication. Adaptation requires predicting the chann...
Ana Aguiar, Holger Karl, Adam Wolisz, Horst Miesme...
DEBU
2000
147views more  DEBU 2000»
13 years 9 months ago
XJoin: A Reactively-Scheduled Pipelined Join Operator
Wide-area distribution raises significant performance problems for traditional query processing techniques as data access becomes less predictable due to link congestion, load imb...
Tolga Urhan, Michael J. Franklin
SIGIR
2010
ACM
14 years 26 days ago
Context aware query classification using dynamic query window and relationship net
The context of the user queries, preceding a given query, is utilized to improve the effectiveness of query classification. Earlier efforts utilize fixed number of preceding queri...
Nazli Goharian, Saket S. R. Mengle
SIGIR
2009
ACM
14 years 3 months ago
What queries are likely to recur in web search?
We study the recurrence dynamics of queries in Web search by analysing a large real-world query log dataset. We find that query frequency is more useful in predicting collective ...
Dell Zhang, Jinsong Lu