Research Publications of Debasis Sengupta

Work on Survival Analysis:

• Estimation of competeing risks with general missing pattern in failure type (A. Dewanji and D. Sengupta), Biometrics, 59(4), 1063-1070, 2003.
• Testing for the proportionality of hazards in two samples against the increasing cumulative hazard ratio alternative (D. Sengupta, A. Bhattacharjee and B. Rajeev), Scandinavian Journal of Statistics, 25, 637-647, 1998.
• Graphical tools for survival data (D. Sengupta), in Proceedings of the International Workshop on the Analysis of Censored Data, IMS Lecture Notes Vol. 27, 1996.
• Testing the hypothesis of proportional hazards in two populations (J.V. Deshpande and D. Sengupta), Biometrika, 82(2), 251-61, 1995.
• Inference from discrete life history data: a counting process approach (D. Sengupta and S.R. Jammalamadaka), Scandinavian Journal of Statistics, 20(1), 51-61, 1993.

Work on Reliability:

• Reliability bounds and other inequalities for discrete life distributions (D. Sengupta, A. Chatterjee and B. Chakraborty), Microelectronics and Reliability, 35(12), 1473-1478, 1995.
• Some results on the relative aging of two life distributions (D. Sengupta and J.V. Deshpande), Journal of Applied Probability, 31(4), 991-1003, 1994.
• Another look at the moment bounds on reliability (D. Sengupta), Journal of Applied Probability, 31(3), 777-787, 1994.
• Reliability bounds for the L-class and Laplace order (D. Sengupta), Journal of Applied Probability, 32(3), 832-835, 1995.
• On the coefficient of variation for the L-class of life distributions (A. Bhattacharjee and D. Sengupta), Statistics and Probability Letters, 27, 177-180, 1996.
• Log-concave and concave distributions in reliability (D. Sengupta and A. Nanda), Naval Research Logistics, 46(4), 419-433, 1999.

Work on Linear Models and Regression:

• Linear Models: An Integrated Approach, (D. Sengupta and S.R. Jammalamadaka), World Scientific Publishing Company, River Edge, NJ, 2003.
• On the Kalman filter with possibly degenerate and correlated errors (D. Sengupta), Linear Algebra and its Applications, 388, 327-340, 2004.
• The National Center for Health Statistics reference and the growth of Indian adolescent boys (M. de Onis, P. Dasgupta, S. Saha, D. Sengupta and M. Blossner), American Journal of Clinical Nutrition, 74(2), 248-253, 2001.
• Changes in the general linear model: a unified approach (S.R. Jammalamadaka and D. Sengupta), Linear Algebra and its Applications, 289, 225-242, 1999.
• On the roles of observations in collinearity in the linear model (D. Sengupta and P. Bhimasankaram), Journal of the American Statistical Association (Theory and Methods), 92(439), 1024-1032, 1997.
• The linear zero functions approach to linear models (P. Bhimasankaram and D. Sengupta),  Sankhya Series B, 58(3), 338-351, 1996.
• Optimal choice of a new observation in a linear model (D. Sengupta), Sankhya Series A, 57(1), 137-153, 1995.
• Recursive inference in the general linear model (P. Bhimasankaram, D. Sengupta and S. Ramanathan), Sankhya Series A, 57(2), 227-255, 1995.
• A post-script to ``Regression post-mortem'' (P. Bhimasankaram, D. Sengupta, A. Bhattacharjee and A. Roy), Journal of the Indian Society for Agricultural Statistics, 44(3), 286-291, 1992.

Work on Non-Gaussian Signal Processing:

• Detection in incompletely characterized colored non-Gaussian noise via parametric modeling (with S. Kay), IEEE Transactions on Signal Processing, 41(10), 3066-3070, 1993.
• Parameter estimation and GLRT detection in colored non-Gaussian autoregressive processes (with S. Kay), IEEE Transactions on Acoustics, Speech and Signal Processing, 38(10), 1661-1676, 1990.
• Efficient estimation of parameters for non-Gaussian autoregressive processes (with S. Kay), IEEE Transactions on Acoustics, Speech and Signal Processing, 37(6), 785-794, 1989.
• Arrival angle estimation in non-Gaussian noise (with S. Palit), Proceedings of the International Conference on Acoustics, Speech and Signal Processing, Adelaide, Australia, April 19-22, 1994, Vol. 4, pp. IV/221-224.
• Recent advances in the theory and application of non-Gaussian autoregressive processes (with S. Kay), in Advances in spectrum estimation and array processing, edited by Simon Haykin, Prentice-Hall: Englewood Cliffs, NJ, USA, 1991.

Work on Multiple Target Tracking:

• Neural network solution to the multitarget tracking data association problem (with R.A. Iltis), IEEE Transactions on Aerospace and Electronic Systems, 25(1), 96-108, 1989.
• Tracking of multiple maneuvering targets by probabilistic data and maneuver association (with R.A. Iltis), Proceedings of the American Controls Conference, Pittsburgh, USA, June 21-23, 1989, pp. 2696-2701.
• Distributed sensor tracking of multiple targets using joint probabilistic data association with infrequent communication between sensors (with R.A. Iltis), Technical Report #87-07, Department of Electrical and Computer Engineering, University of California, Santa Barbara, July 1987.

Miscellaneous work:

• A post-mortem analysis of opinion and exit polls in West Bengal in May 2001 (D. Sengupta, P. Chaudhuri, A. Dewanji and B.K. Roy), Calcutta Statistical Association Bulletin, 51(203-204), 277-288, 2001.
• Analysis of fatal accidents in Indian coal mines (A. Manlal and D. Sengupta), Calcutta Statistical Association Bulletin, 50(197-198), 95-120, 2000.
• Least favorable configuration and asymptotic efficiency in multinomial selection procedures (with S.K. Bhandari), Journal of Statistical Planning and Inference, 31(1), 71-83, 1994.
• Testing for the mean vector of a multivariate normal distribution with a possibly singular dispersion matrix and related results (with P. Bhimasankaram), Statistics and Probability Letters, 11, 473-478, 1991.