Willem Jan Heiser (born 19 January 1949) is a Dutch social scientist who was Professor of Psychology, Statistical Methods and Data Theory at the Leiden University between 1989 and 2014.[1]

Biography

Heiser was born on 19 January 1949 in Rotterdam.[2] He received his PhD in 1981 from the Leiden University with a thesis entitled "Unfolding analysis of proximity data" advised by John van de Geer and Jan de Leeuw.[2][3] 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 was appointed Professor of Psychology & Statistics.[2] Since 2007 he has been 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. From 2002 to 2015 he served as Editor-in-Chief 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."[1]

At his farewell speech on 31 January 2014, Heiser was knighted in the Order of the Dutch Lion by the mayor of Leiden, Henri Lenferink.[2][4]

Publications

Heiser has authored and co-authored numerous publications[5][6]

  • 1981. Unfolding analysis of proximity data. Doctorate thesis Rijksuniversiteit Leiden.
  • 1994. Models for Asymmetric Proximities. With Berrie Zielman.
  • 2001. SPSS Categories 11.0. With Jacqueline Meulman. Chicago: SPSS, 2001.

Articles, a selection:

References

  1. 1 2 Prof. dr. Willem Heiser at lumc.nl, 2005. Accessed September 30, 2013
  2. 1 2 3 4 "Willem Jan Heiser (Willem)" (in Dutch). Leiden University. Archived from the original on 11 October 2020.
  3. ↑ Willem Heiser in Mathematics Genealogy Project
  4. ↑ Prof.dr. Willem Heiser koninklijk onderscheiden at nieuws.leidenuniv.nl, 31-01-2014. Accessed January 31, 2014.
  5. ↑ List of Publications at National Library of the Netherlands
  6. ↑ Willem J. Heiser List of publications from the DBLP Bibliography Server.
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