Donald B. Johnson

Donald B. Johnson
Born
Donald Bruce Johnson

(1933-12-16)December 16, 1933
DiedSeptember 10, 1994(1994-09-10) (aged 60)
NationalityAmerican
EducationCornell University
Occupationcomputer scientist
Employer(s)Dartmouth College
Pennsylvania State University
Known forfounding chair, Dartmouth College computer science department
Notable workd-ary heap data structure
Johnson's algorithm

Donald Bruce Johnson (December 16, 1933 – September 10, 1994)[1][2][3] was an American computer scientist, a researcher in the design and analysis of algorithms, and the founding chair of the computer science department at Dartmouth College.[4]

Johnson received his Ph.D. from Cornell University in 1973 under the supervision of David Gries.[5] He took a faculty position in the computer science department at Pennsylvania State University, and later moved to the department of mathematics at Dartmouth.[5] When the Dartmouth computer science department was founded in 1994,[6] he became its first chair.[4]

Johnson invented the d-ary heap data structure,[7][8] and is also known for Johnson's algorithm for the all-pairs shortest path problem.[9][10]

References

  1. ^ date from Author's thesis biographyJohnson, Donald B., Algorithms for shortest paths
  2. ^ Death date from author listing of Armen, Chris; Johnson, Donald B. (1996), "Deterministic leader election on the asynchronous QRQW PRAM", Parallel Processing Letters, 6 (2): 247–250, doi:10.1142/S0129626496000248.
  3. ^ "Johnson's home page at Dartmouth as of 1997". Archived from the original on June 5, 1997. Retrieved April 23, 2017.{{cite web}}: CS1 maint: bot: original URL status unknown (link), retrieved 2011-01-04.
  4. ^ a b Gloor, P. A. (1997), "Acknowledgements", Elements of hypermedia design: techniques for navigation & visualization in cyberspace, Birkhäuser, p. xvii.
  5. ^ a b Donald Bruce Johnson at the Mathematics Genealogy Project.
  6. ^ History of Computer Science at Dartmouth College Archived October 31, 2010, at the Wayback Machine, retrieved 2011-01-04.
  7. ^ Johnson, D. B. (1975), "Priority queues with update and finding minimum spanning trees", Information Processing Letters, 4 (3): 53–57, doi:10.1016/0020-0190(75)90001-0.
  8. ^ Tarjan, R. E. (1983), "3.2. d-heaps", Data Structures and Network Algorithms, CBMS-NSF Regional Conference Series in Applied Mathematics, vol. 44, Society for Industrial and Applied Mathematics, pp. 34–38.
  9. ^ Johnson, Donald B. (1977), "Efficient algorithms for shortest paths in sparse networks", Journal of the ACM, 24 (1): 1–13, doi:10.1145/321992.321993, S2CID 207678246.
  10. ^ Cormen, Thomas H.; Leiserson, Charles E.; Rivest, Ronald L.; Stein, Clifford (2001), Introduction to Algorithms, MIT Press and McGraw-Hill, ISBN 978-0-262-03293-3. Section 25.3, "Johnson's algorithm for sparse graphs", pp. 636–640.