Jacobus Verhoeff

Jacobus 'Koos' Verhoeff
Born	20 February 1927 The Hague [1]
Nationality	Dutch
Fields	Mathematics, Computer science
Institutions	Delft University of Technology, Philips, Erasmus University Rotterdam
Alma mater	University of Amsterdam
Thesis	Error Detecting Decimal Codes[2] (1969)
Doctoral advisor	Adriaan van Wijngaarden, Wouter Peremans
Known for	Error detecting codes

Jacobus "Koos" Verhoeff (born 1927) is a Dutch mathematician, computer scientist, and artist. He is known for his work on error detection and correction, and worked on information retrieval.^[3] He has also held exhibitions of his mathematically inspired sculptures. He is now retired.

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

He is 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).

References

1. J. Verhoeff at the UvA Album Academicum website.
2. http://www.genealogy.ams.org/id.php?id=91952
3. http://www.ams.org/samplings/feature-column/fcarc-verhoeff