Jacobus Verhoeff

Jacobus "Koos" Verhoeff (20 February 1927 – 19 March 2018)[3] was a Dutch mathematician, computer scientist, and artist. He is known for his work on error detection and correction, and worked on information retrieval.[4] He has also held exhibitions of his mathematically inspired sculptures.

Jacobus 'Koos' Verhoeff
Born(1927-02-20)February 20, 1927
The Hague[1]
DiedMarch 19, 2018(2018-03-19) (aged 91)
Veldhoven, Netherlands
NationalityDutch
Alma materUniversity of Amsterdam
Known forError detecting codes, Mathematical art
Scientific career
FieldsMathematics, Computer science
InstitutionsDelft University of Technology, Philips, Erasmus University Rotterdam
ThesisError Detecting Decimal Codes[2] (1969)
Doctoral advisorAdriaan van Wijngaarden, Wouter Peremans

He was best known for his check-digit Verhoeff algorithm, which is based on the dihedral group of order 10.

He was the father of Tom Verhoeff, also a mathematician and computer scientist.

Selected publications
  • Verhoeff, J. (1977). "A New Data Compression Technique". Annals of Systems Research. Springer US. 6: 139–148. doi:10.1007/978-1-4613-4074-4_8.
  • Verhoeff, Jacobus (1969). Error detecting decimal codes (Ph.D.). Mathematical Centre, Amsterdam.
  • Verhoeff, J. (April 1970). "Wiskundige aspecten van het Nederlandse administratienummer voor personen (Mathematical aspects of the Dutch administration number for persons)". Informatie, maandblad voor informatieverwerking (in Dutch). 12 (4): 162–169.
  • Verhoeff, Jacobus; Goffman, W; Belzer, Jack. "Inefficiency of the use of boolean functions for information retrieval systems". Communications of the ACM. Association for Computing Machinery. 4 (12): 557–558. doi:10.1145/366853.366861.
  • Verhoeff, J. (1953). "Recent investigations about the radical of a ring". Rapport ZW. Math. Centrum Amsterdam. 1953-007.
  • Verhoeff, J. "On pseudo-convergent sequences". Nederl. Akad. Wetensch. Proc. Ser. A., (Indagationes Math.). 15 (401–404).
gollark: Hold on, I should update the blasphemy detection logic.
gollark: Oh yes. That. That's not really an "exploit" as much as "CC feature".
gollark: If you find one, somehow, I *will* patch it.
gollark: You'll be able to directly run signed code from pastebin or something.
gollark: I am in fact planning to drop the first requirement at some point and launch "PotatOS Privileged Execution".

References
  1. J. Verhoeff at the UvA Album Academicum website.
  2. https://genealogy.math.ndsu.nodak.edu/id.php?id=91952
  3. https://www.ed.nl/cultuur/wiskundige-en-wiskunstenaar-koos-verhoeff-overleden-1927-2018~a4b6925a/
  4. http://www.ams.org/samplings/feature-column/fcarc-verhoeff


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