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Willem Jan Heiser (born 19 January 1949, Rotterdam) is a Dutch social scientists and Professor of Psychology, Statistical Methods and Data Theory at the Leiden University.〔(Prof. dr. Willem Heiser ) at lumc.nl, 2005. Accessed September 30, 2013〕 == Biography == Heiser received his PhD in 1981 from the Leiden University with a thesis entitled "Unfolding analysis of proximity data" advised by John P. van de Geer and Jan de Leeuw.〔(Willem Heiser ) in Mathematics Genealogy Project〕 In the year 1981-82 he performed Postdoctoral research at Bell Labs in New Jersey. Back at the University of Leiden in 1982 he joined the Department of Data Theory, were in April 1989 he is appointed Professor of Psychology & Statistics. Since 2007 he is Scientific director of the Interuniversity Graduate School for Psychometrics and Sociometrics and since 2008 also scientific director of the Institute of Psychology at the University of Leiden. Since 2002 he is editor of the ''Journal of Classification''. Heiser's research interests are in the fields of "multivariate categorical data using multidimensional scaling and classification techniques... advanced clustering and classification methodology for FMRI data."〔 At his farewell speech on January 31, 2014, Heiser was knighted in the Order of the Dutch Lion by the mayor of Leiden, Henri Lenferink.〔(Prof.dr. Willem Heiser koninklijk onderscheiden ) at ''nieuws.leidenuniv.nl'', 31-01-2014. Accessed January 31, 2014.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Willem J. Heiser」の詳細全文を読む スポンサード リンク
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