1088 search results - page 139 / 218 » Probabilistic query expansion using query logs |
CLEF
2007
Springer
14 years 3 months ago
2007
Springer
GeoCLEF ran as a regular track for the second time within the Cross Language Evaluation Forum (CLEF) 2007. The purpose of GeoCLEF is to test and evaluate cross-language geographic ...
EMNLP
2009
13 years 6 months ago
2009
There have been increasing needs for task specific rankings in web search such as rankings for specific query segments like long queries, time-sensitive queries, navigational quer...
IPL
2006
13 years 9 months ago
2006
A precise analysis of the retrieval of signature trees is presented. A signature tree is a data structure constructed over a signature file to speed up searching all those signatu...
WAIM
2009
Springer
14 years 3 months ago
2009
Springer
Search engine advertising has become the main stream of online advertising system. In current search engine advertising systems, all users will get the same advertisement rank if t...
COMPGEOM
2009
ACM
14 years 3 months ago
2009
ACM
We present cache-oblivious solutions to two important variants of range searching: range reporting and approximate range counting. Our main contribution is a general approach for ...