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Note: Links lead to the DBLP on the Web. Stephen E. Robertson Stephen E. Robertson, Hugo Zaragoza , Michael Taylor : Simple BM25 extension to multiple weighted fields. CIKM 2004 : 42-49 Djoerd Hiemstra , Stephen E. Robertson, Hugo Zaragoza : Parsimonious language models for information retrieval. SIGIR 2004 : 178-185 Trystan Upstill , Stephen E. Robertson: Exploiting hyperlink recommendation evidence in navigational web search. SIGIR 2004 : 576-577 David Bodoff , Stephen E. Robertson: A new unified probabilistic model. JASIST 55 (6): 471-487 (2004) Andy MacFarlane , Stephen E. Robertson, Julie A. McCann : Parallel Computing for Term Selection in Routing/Filtering. ECIR 2003 : 537-545 Ian Soboroff , Stephen E. Robertson: Building a filtering test collection for TREC 2002. SIGIR 2003 : 243-250 Stephen E. Robertson, Hugo Zaragoza , Michael Taylor : Microsoft Cambridge at TREC-12: HARD track. TREC 2003 : 418-425 David Hawking , Stephen E. Robertson: On Collection Size and Retrieval Effectiveness. Inf. Retr. 6 (1): 99-105 (2003) Olga Vechtomova , Stephen E. Robertson, Susan Jones : Query Expansion with Long-Span Collocates. Inf. Retr. 6 (2): 251-273 (2003) Xiangji Huang , Fuchun Peng , Dale Schuurmans , Nick Cercone , Stephen E. Robertson: Applying Machine Learning to Text Segmentation for Information Retrieval. Inf. Retr. 6 (3-4): 333-362 (2003) James Allan , Jay Aslam , Nicholas J. Belkin , Chris Buckley , James P. Callan , W. Bruce Croft , Susan T. Dumais , Norbert Fuhr , Donna Harman , David J. Harper , Djoerd Hiemstra , Thomas Hofmann , Eduard H. Hovy , Wessel Kraaij , John D. Lafferty , Victor Lavrenko , David Lewis , Liz Liddy , R. Manmatha , Andrew McCallum , Jay M. Ponte , John M. Prager , Dragomir R. Radev , Philip Resnik , Stephen E. Robertson, Ronald Rosenfeld , Salim Roukos , Mark Sanderson , Rich Schwartz , Amit Singhal , Alan F. Smeaton , Howard R. Turtle , Ellen M. Voorhees , Ralph M. Weischedel , Jinxi Xu , ChengXiang Zhai : Challenges in information retrieval and language modeling: report of a workshop held at the center for intelligent information retrieval, University of Massachusetts Amherst, September 2002. SIGIR Forum 37 (1): 31-47 (2003) Fuchun Peng , Xiangji Huang , Dale Schuurmans , Nick Cercone , Stephen E. Robertson: Using self-supervised word segmentation in Chinese information retrieval. SIGIR 2002 : 349-350 Tetsuya Sakai , Stephen E. Robertson: Relative and absolute term selection criteria: a comparative study for English and Japanese IR. SIGIR 2002 : 411-412 Stephen E. Robertson, Steve Walker , Hugo Zaragoza , Ralf Herbrich : Microsoft Cambridge at TREC 2002: Filtering Track. TREC 2002 Stephen E. Robertson, Ian Soboroff : The TREC 2002 Filtering Track Report. TREC 2002 Stephen E. Robertson: Introduction to the Special Issue: Overview of the TREC Routing and Filtering Tasks. Inf. Retr. 5 (2-3): 127-137 (2002) Stephen E. Robertson: Threshold Setting and Performance Optimization in Adaptive Filtering. Inf. Retr. 5 (2-3): 239-256 (2002) Stephen E. Robertson: Comparing the Performance of Adaptive Filtering and Ranked Output Systems. Inf. Retr. 5 (2-3): 257-268 (2002) Djoerd Hiemstra , Stephen E. Robertson: Relevance Feedback for Best Match Term Weighting Algorithms in Information Retrieval. DELOS Workshop: Personalisation and Recommender Systems in Digital Libraries 2001 Nick Craswell , David Hawking , Stephen E. Robertson: Effective Site Finding Using Link Anchor Information. SIGIR 2001 : 250-257 Tetsuya Sakai , Stephen E. Robertson: Flexible Pseudo-Relevance Feedback Using Optimization Tables. SIGIR 2001 : 396-397 Stephen E. Robertson, Steve Walker , Hugo Zaragoza : Microsoft Cambridge at TREC-10: Filtering and Web Tracks. TREC 2001 Jianfeng Gao , Guihong Cao , Hongzhao He , Min Zhang , Jian-Yun Nie , Steve Walker , Stephen E. Robertson: TREC-10 Web Track Experiments at MSRA. TREC 2001 Stephen E. Robertson, Ian Soboroff : The TREC 2001 Filtering Track Report. TREC 2001 Yasemin Kural , Stephen E. Robertson, Susan Jones : Deciphering cluster representations. Inf. Process. Manage. 37 (4): 593-601 (2001) Stephen E. Robertson: Evaluation in Information Retrieval. ESSIR 2000 : 81-92 Stephen E. Robertson: Salton Award Lecture: On theoretical argument in information retrieval. SIGIR 2000 : 1 Andy MacFarlane , Julie A. McCann , Stephen E. Robertson: Parallel Search Using Partitioned Inverted Files. SPIRE 2000 : 209-220 Stephen E. Robertson, Steve Walker : Microsoft Cambridge at TREC-9: Filtering Track. TREC 2000 Stephen E. Robertson, David A. Hull : The TREC-9 Filtering Track Final Report. TREC 2000 Xiangji Huang , Stephen E. Robertson, Nick Cercone , Aijun An : Probability-Based Chinese Text Processing and Retrieval. Computational Intelligence 16 (4): 552-569 (2000) Stephen E. Robertson, Steve Walker , Micheline Hancock-Beaulieu : Experimentation as a way of life: Okapi at TREC. Inf. Process. Manage. 36 (1): 95-108 (2000) Karen Sparck Jones , Steve Walker , Stephen E. Robertson: A probabilistic model of information retrieval: development and comparative experiments - Part 1. Inf. Process. Manage. 36 (6): 779-808 (2000) Karen Sparck Jones , Steve Walker , Stephen E. Robertson: A probabilistic model of information retrieval: development and comparative experiments - Part 2. Inf. Process. Manage. 36 (6): 809-840 (2000) Stephen E. Robertson: Salton Award Lecture: On theoretical argument in information retrieval. SIGIR Forum 34 (1): 1-10 (2000) Yasemin Kural , Stephen E. Robertson, Susan Jones : Clustering Information Retrieval Search Outputs. BCS-IRSG Annual Colloquium on IR Research 1999 Andy MacFarlane , Julie A. McCann , Stephen E. Robertson: PLIERS: A Parallel Information Retrieval System Using MPI. PVM/MPI 1999 : 317-324 Stephen E. Robertson, Steve Walker : Okapi/Keenbow at TREC-8. TREC 1999 Andy MacFarlane , Stephen E. Robertson, Julie A. McCann : PLIERS at TREC8 - Appendix. TREC 1999 Andy MacFarlane , Stephen E. Robertson, Julie A. McCann : PLIERS at TREC8. TREC 1999 David A. Hull , Stephen E. Robertson: The TREC-8 Filtering Track Final Report - Figures. TREC 1999 David A. Hull , Stephen E. Robertson: The TREC-8 Filtering Track Final Report. TREC 1999 Paul B. Kantor , Stephen E. Robertson: Editorial. Inf. Retr. 1 (1-2): 5 (1999) David A. Hull , Stephen E. Robertson: The TREC-9 Filtering Track. SIGIR Forum 33 (2): 16 (1999) Victoria Manglano , Micheline Beaulieu , Stephen E. Robertson: Evaluation of Interfaces for IRS: Modelling End-User Searching Behaviour. BCS-IRSG Annual Colloquium on IR Research 1998 Stephen E. Robertson, Steve Walker , Micheline Hancock-Beaulieu : Okapi at TREC-7: Automatic Ad Hoc, Filtering, VLC and Interactive. TREC 1998 : 199-210 Andy MacFarlane , Stephen E. Robertson, Julie A. McCann : PLIERS AT VLC2. TREC 1998 : 271-280 Stephen E. Robertson: Cyril W. Cleverdon (In Memoriam). JASIS 49 (10): 866 (1998) Stephen E. Robertson, Steve Walker : On Relevance Weights with Little Relevance Information. SIGIR 1997 : 16-24 Steve Walker , Stephen E. Robertson, Mohand Boughanem , Gareth J. F. Jones , Karen Sparck Jones : Okapi at TREC-6 Automatic ad hoc, VLC, routing, filtering and QSDR. TREC 1997 : 125-136 Xiangji Huang , Stephen E. Robertson: Okapi Chinese Text Retrieval Experiments at TREC-6. TREC 1997 : 137-142 Micheline Hancock-Beaulieu , Mike Gatford , Xiangji Huang , Stephen E. Robertson, Steve Walker , P. W. Williams : Okapi at TREC-5. TREC 1996 Micheline Hancock-Beaulieu , Stephen E. Robertson, Edie M. Rasmussen : Evaluating Interactive Systems in TREC. JASIS 47 (1): 85-94 (1996) Stephen E. Robertson, Steve Walker , Micheline Hancock-Beaulieu , Mike Gatford , A. Payne : Okapi at TREC-4. TREC 1995 Stephen E. Robertson, Steve Walker , Micheline Hancock-Beaulieu : Large Test Collection Experiments on an Operational, Interactive System: Okapi at TREC. Inf. Process. Manage. 31 (3): 345-360 (1995) Susan Jones , Mike Gatford , Stephen E. Robertson, Micheline Hancock-Beaulieu , Judith Secker , Steve Walker : Interactive Thesaurus Navigation: Intelligence Rules OK? JASIS 46 (1): 52-59 (1995) Stephen E. Robertson, Steve Walker : Some Simple Effective Approximations to the 2-Poisson Model for Probabilistic Weighted Retrieval. SIGIR 1994 : 232-241 Stephen E. Robertson, Steve Walker , Susan Jones , Micheline Hancock-Beaulieu , Mike Gatford : Okapi at TREC-3. TREC 1994 : 0- Stephen E. Robertson, Steve Walker , Susan Jones , Micheline Hancock-Beaulieu , Mike Gatford : Okapi at TREC-2. TREC 1993 : 21-34 William S. Cooper , Stephen E. Robertson: Workshop Report - Use of Training Materials in Constructing Routing Queries. TREC 1993 : 305 Stephen E. Robertson, Steve Walker , Micheline Hancock-Beaulieu , Aarron Gull , Marianna Lau : Okapi at TREC. TREC 1992 : 21-30 Norbert Fuhr , Stephen E. Robertson: Machine Learning and Relevance Feedback. TREC 1992 : 369-370 Stephen E. Robertson, Micheline Hancock-Beaulieu : On the Evaluation of IR Systems. Inf. Process. Manage. 28 (4): 457-466 (1992) Micheline Hancock-Beaulieu , Stephen E. Robertson, Colin Neilson : Evaluation of online catalogues: Eliciting information from the user. Inf. Process. Manage. 27 (5): 523-532 (1991) Stephen E. Robertson: On sample sizes for non-matched-pair IR experiments. Inf. Process. Manage. 26 (6): 739-753 (1990) Stephen E. Robertson, M. E. Maron , William S. Cooper : The Unified Probabilistic Model for IR. SIGIR 1982 : 108-117 Robert N. Oddy , Stephen E. Robertson, C. J. van Rijsbergen , P. W. Williams : Information Retrieval Research, Proc. Joint ACM/BCS Symposium in Information Storage and Retrieval, Cambridge, June 1980 Butterworths 1981 Stephen E. Robertson: Term Frequency and Term Value. SIGIR 1981 : 22-29 Stephen E. Robertson, C. J. van Rijsbergen , Martin F. Porter : Probabilistic Models of Indexing and Searching. SIGIR 1980 : 35-56 Stephen E. Robertson: The probabilistic character of relevance. Inf. Process. 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