Sciweavers

4 search results - page 1 / 1
» sigir 1994
Sort
View
SIGIR
2009
ACM
13 years 11 months ago
Has adhoc retrieval improved since 1994?
Evaluation forums such as TREC allow systematic measurement and comparison of information retrieval techniques. The goal is consistent improvement, based on reliable comparison of...
Timothy G. Armstrong, Alistair Moffat, William Web...
SIGIR
2011
ACM
12 years 7 months ago
Ad hoc IR: not much room for improvement
Ranking function performance reached a plateau in 1994. The reason for this is investigated. First the performance of BM25 is measured as the proportion of queries satisfied on th...
Andrew Trotman, David Keeler