Raghu Raj Bahadur Explained

Raghu Raj Bahadur
Birth Date:30 April 1924
Birth Place:New Delhi, India
Field:Mathematical statistics
Work Institution:University of Chicago
Alma Mater:St. Stephen’s College, Delhi
Delhi University
University of North Carolina, Chapel Hill
Known For:Bahadur efficiency
Anderson–Bahadur algorithm
Bahadur–Ghosh–Kiefer representation

Raghu Raj Bahadur (30 April 1924  - 7 June 1997) was an Indian statistician considered by peers to be "one of the architects of the modern theory of mathematical statistics".[1] [2]

Biography

Bahadur was born in Delhi, India, and received his BA (1943) and MA (1945) in mathematics from St. Stephen’s College, University of Delhi .[3] [4] He received his doctorate from the University of North Carolina under Herbert Robbins in 1950 after which he joined University of Chicago. He worked as a research statistician at the Indian Statistical Institute in Calcutta from 1956 to 1961. He spent the remainder of his academic career in the University of Chicago. He was a cousin to Madhur Jaffrey.[5]

Contributions

He published numerous papers[6] and is best known for the concepts of "Bahadur efficiency"[7] and the Bahadur–Ghosh–Kiefer representation (with J. K. Ghosh and Jack Kiefer).[8]

He also framed the Anderson–Bahadur algorithm[9] along with Theodore Wilbur Anderson which is used in statistics and engineering for solving binary classification problems when the underlying data have multivariate normal distributions with different covariance matrices.

Legacy

He held the John Simon Guggenheim Fellowship (1968–69)[10] and was the 1974 Wald Lecturer of the IMS. He was the President of the Institute of Mathematical Statistics during 1974–75 and was elected a Fellow of the American Academy of Arts and Sciences in 1986.[11]

Notes and References

  1. Web site: Obituary: Raghu Raj Bahadur, Statistics . The University of Chicago Chronicle . 12 June 1997 . 8 October 2018 .
  2. News: Tony Marcano . R. R. Bahadur, 73; Created Statistical Concept . subscription . 3 August 2020 . . 13 June 1997 . D 21.
  3. Book: "RR Bahadur's Lectures on the Theory of Estimation". 9780940600539. Bahadur. Raghu Raj. Stigler. Stephen M.. 2002.
  4. Raghu Raj Bahadur. Oxford Reference. 17 June 2013.
  5. News: Marcano. Tony. R. R. Bahadur, 73; Created Statistical Concept. The New York Times. 17 July 2013. 1997-06-13.
  6. https://stat.uchicago.edu/people/in-memoriam/
  7. http://www.math.binghamton.edu/arcones/prep/pv.pdf
  8. Lahiri. S. N. On the Bahadur—Ghosh—Kiefer representation of sample quantiles. Statistics & Probability Letters. 1992. 15. 2. 163–168. 10.1016/0167-7152(92)90130-w.
  9. Classification into two multivariate normal distributions with different covariance matrices (1962), T W Anderson, R R Bahadur, Annals of Mathematical Statistics
  10. Web site: Raghu Raj Bahadur. Indian National Science Academy. 17 July 2013.
  11. Web site: Book of Members, 1780–2010: Chapter B. American Academy of Arts and Sciences. 5 May 2011.