950 search results - page 91 / 190 » Evaluation over thousands of queries |
ICDE
2008
IEEE
14 years 11 months ago
2008
IEEE
This work introduces novel polynomial algorithms for processing top-k queries in uncertain databases under the generally adopted model of x-relations. An x-relation consists of a n...
SSDBM
2007
IEEE
14 years 4 months ago
2007
IEEE
Applications that query data streams in order to identify trends, patterns, or anomalies can often benefit from comparing the live stream data with archived historical stream dat...
SIGIR
2000
ACM
14 years 2 months ago
2000
ACM
This article compares search effectiveness when using query-based Internet search (via the Google search engine), directory-based search (via Yahoo) and phrasebased query reformul...
PVLDB
2008
13 years 9 months ago
2008
The backend database system is often the performance bottleneck when running web applications. A common approach to scale the database component is query result caching, but it fa...
ICDE
2011
IEEE
13 years 2 months ago
2011
IEEE
—In this paper, we address the problem of answering continuous route planning queries over a road network, in the presence of updates to the delay (cost) estimates of links. A si...