Jayanta Kumar Ghosh Explained

Jayanta Kumar Ghosh (Bengali: জয়ন্ত কুমার ঘোষ, 23 May 1937 – 30 September 2017) was an Indian statistician, an emeritus professor at Indian Statistical Institute and a professor of statistics at Purdue University.^[1]

Education

He obtained a B.S. from Presidency College, then affiliated with the University of Calcutta, and subsequently a M.A. and a Ph.D. from the University of Calcutta under the supervision of H. K. Nandi. He started his research career in the early 1960s, studying sequential analysis as a graduate student in the department of statistics at the University of Calcutta.^[2]

Research

Among his best-known discoveries are the Bahadur–Ghosh–Kiefer representation (with R. R. Bahadur and Jack Kiefer)^[3] and the Ghosh–Pratt identity along with John W. Pratt.^[4]

His research contributions fall within the fields of:

• Bayesian inference
• Asymptotics
• Modeling and model selection
• High dimensional data analysis
• Nonparametric regression and density estimation
• Survival analysis
• Statistical genetics

Awards and honors

• Elected member of the International Statistical Institute
• Advisory editor, Journal of Statistical Planning and Inference
• Fellow of the Institute of Mathematical Statistics
• Fellow of the Indian National Science Academy
• Life member and director of the Calcutta Statistical Association
• Fellow of the Indian Academy of Sciences
• Japanese Society for Promotion of Sciences Fellowship, 1978
• Shanti Swarup Bhatnagar Prize for Science and Technology, 1981
• President, Statistics Section of the Indian Science Congress Association, 1991
• President, International Statistical Institute, 1993
• Mahalanobis Gold Medal of Indian Science Congress Association, 1998
• Invited speaker of the International Congress of Mathematicians, 1998^[5]
• P. V. Sukhatme Prize for Statistics, 2000
• Mahalanobis Memorial Lecture, State Science and Technology Congress, W. Bengal, 2003
• D.Sc. (h.c.), B.C. Roy Agricultural University, W. Bengal, India, 2006
• International Indian Statistical Association (IISA) Lifetime Achievement Award, 2010 ^[6]
• Padma Shree (2014) by the Government of India

Bibliography

He has published over 50 research papers. He has also published four books, which are:

• Invariance in Testing and Estimation (Lecture Notes), 1967, published by Indian Statistical Institute, Calcutta.
• Higher Order Asymptotics (based on CBMS-NSF lecture), published jointly by Institute of Mathematical Statistics and American Statistical Association, 1994.
• (with R.V. Ramamoorthi) Bayesian Nonparametrics (Springer 2003).
• (with Mohan Delampady and Tapas Samanta) An Introduction to Bayesian Analysis - Theory and Methods, Springer 2006.

External links

• Indian Statistical Institute Statistics Department homepage
• Dr. Ghosh's profile at Purdue University
• Dr. Ghosh's webpage at the Statistics Department of Purdue University
• A biography of Dr. Ghosh written by Professor Anirban Dasgupta

Notes and References

1. Web site: Obituary: Jayanta Kumar Ghosh, 1937–2017 . Dasgupta . Anirban . 16 November 2017 . IMS Bulletin . en-US . 2018-02-21 . 4 December 2017 . https://web.archive.org/web/20171204222933/http://bulletin.imstat.org/2017/11/obituary-jayanta-kumar-ghosh-1937-2017/ . dead .
2. Book: Bertrand . Clarke. Subhashis . Ghosal. J. K. Ghosh's contribution to statistics. projecteuclid.org. 18 August 2018. 9780940600751. 2008.
3. 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.
4. Casella . George . George Casella . The Ghosh–Pratt Identity . Wiley StatsRef: Statistics Reference Online . 1996 . 10.1002/9781118445112.stat01501 . 9781118445112 .
5. Book: Ghosh, Jayanta K.. Bayesian density estimation. Doc. Math. (Bielefeld) Extra Vol. ICM Berlin, 1998, vol. III. 1998. 237–243. https://www.elibm.org/ft/10011581000.
6. Web site: International Indian Statistical Association.