A major figure of the InformationRetrieval community. He is the leader of the GlasgowInformationRetrievalGroup based at GlasgowUniversity. Wrote the seminal book Information Retrieval that is now available online from this web site: http://www.dcs.gla.ac.uk/Keith/Preface.html. Recently wrote the classic The Geometery of Information Retrieval textbook http://ir.dcs.gla.ac.uk/GeometryOfIR/.
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