950 search results - page 44 / 190 » Evaluation over thousands of queries |
SEMWEB
2009
Springer
14 years 3 months ago
2009
Springer
Spreadsheet tools are often used in business and private scenarios in order to collect and store data, and to explore and analyze these data by executing functions and aggregation...
SIGMOD
1999
ACM
14 years 1 months ago
1999
ACM
A major bottleneck in implementing sampling as a primitive relational operation is the ine ciency ofsampling the output of a query. It is not even known whether it is possible to ...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
Webcams, microphones, pressure gauges and other sensors provide exciting new opportunities for querying and monitoring the physical world. In this paper we focus on querying wide ...
IPM
2008
13 years 9 months ago
2008
We demonstrate effective new methods of document ranking based on lexical cohesive relationships between query terms. The proposed methods rely solely on the lexical relationships...
EUC
2007
Springer
14 years 3 months ago
2007
Springer
Cooperative caching is an important technique to support efficient data dissemination and sharing in Mobile Ad hoc Networks (MANETs). In order to ensure valid data access, the cach...