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Stephen E. Robertson
Stephen Robertson is a British computer scientist. He is known for his work on probabilistic information retrieval together with Karen Spärck Jones and the Okapi BM25 weighting model. Okapi BM25 is very successful in experimental search evaluations and found its way in many information retrieval systems and products, including open source search systems like Lucene, Lemur Project, Lemur, Xapian, and Terrier Search Engine, Terrier. BM25 is used as one of the most important signals in large web search engines, certainly in Microsoft Bing, and probably in other web search engines too. BM25 is also used in various other Microsoft products such as Microsoft SharePoint and Microsoft SQL Server, SQL Server. After completing his undergraduate degree in mathematics at Cambridge University, he took an MS at City University, London, City University, and then worked for ASLIB. He earned his PhD at University College London in 1976 under the renowned statistician and scholar B. C. Brookes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerard Salton Award
The Gerard Salton Award is presented by the Association for Computing Machinery (ACM) Special Interest Group on Information Retrieval (SIGIR) every three years to an individual who has made "significant, sustained and continuing contributions to research in information retrieval". SIGIR also co-sponsors (with SIGWEB) the Vannevar Bush Award, for the best paper at the Joint Conference on Digital Libraries. Chronological honorees and lectures SourceSIGIR* 1983 — Gerard Salton, Cornell University : "About the future of automatic information retrieval." * 1988 — Karen Spärck Jones, University of Cambridge : "A look back and a look forward." * 1991 — Cyril Cleverdon, Cranfield Institute of Technology : "The significance of the Cranfield tests on index languages." * 1994 — William S. Cooper, University of California, Berkeley : "The formalism of probability theory in IR: a foundation or an encumbrance?" * 1997 — , Rutgers University : "Users lost (summary): reflectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |