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Okapi/Keenbow at TREC-8

Stephen E. Robertson, Steve Walker
1999 Text Retrieval Conference  
Okapi at TRECs 1 7 The Okapi search systems used for TREC are descendants of the Okapi systems developed at the Polytechnic of Central London 1 between 1982 and 1988 under a number of grants from the British  ...  Adaptive ltering Methods were similar to those we used in TREC 7. Six runs were submitted. VLC track Two unexpanded ad hoc runs were submitted.  ...  There have been no major changes to the BSS during TREC 8. Weighting functions All TREC 8 searches used varieties of the Okapi BM25 function rst used in TREC 3 equation 1.  ... 
dblp:conf/trec/RobertsonW99 fatcat:f4yntd65tvadzolnz56zjs5ni4

Microsoft Cambridge at TREC 2002: Filtering Track

Stephen E. Robertson, Steve Walker, Hugo Zaragoza, Ralf Herbrich
2002 Text Retrieval Conference  
Okapi at TRECs 1-10 A summary of the contributions to TRECs 1-7 by the Okapi team, first at City University London and then at Microsoft, is presented in [6] .  ...  performed poorly on the Reuters topics at TREC-10.  ...  For TREC 2002, we developed a new Okapi/Keenbow component called the Basic Filtering Dogsbody (BFD).  ... 
dblp:conf/trec/RobertsonWZH02 fatcat:ygznvl3q3rbhxe4w5rlyf6egxy

The TREC 2002 Filtering Track Report

Stephen E. Robertson, Ian Soboroff
2002 Text Retrieval Conference  
The TREC-11 filtering track measures the ability of systems to build persistent user profiles which successfully separate relevant and non-relevant documents in an incoming stream.  ...  Buckley, Paul Kantor, Ellen Voorhees, the TREC program committee, and the team at NIST.  ...  Acknowledgements We give our thanks to all the people who have contributed to the development of the TREC filtering track over the years, in particular David Lewis, David Hull, Karen Sparck Jones, Chris  ... 
dblp:conf/trec/RobertsonS02 fatcat:fwhyepunqfgndikadr55ztwbwu

Evaluation of Web Retrieval Methods Using Anchor Text

Kenji Tateishi, Hideki Kawai, Susumu Akamine, Katsushi Matsuda, Toshikazu Fukushima
2002 NTCIR Conference on Evaluation of Information Access Technologies  
Okapi/Keenbow at TREC-8, The Eighth Text Retrieval Conference, 1999. The Third NTCIR Workshop, Sep.2001 -Oct. 2002 Figure 1 . 1 Figure 1.  ...  The comparison of Page Anchor and Baseline at Prec@10 by each query 2 Query ID Anchor Hit Keyword  ... 
dblp:conf/ntcir/TateishiKAMF02 fatcat:ovskhwuplffzbnk3agsm2nxkmm