Research Interests

• Nonparametric inference (especially with shape restrictions)
• Resampling techniques
• Statistics in Astronomy and High Enerygy Physics
• Non-standard problems arising in Epidemiology and Econometrics

Research Statement

Core Statistical Publications

• Sen, B., Walker, M., Woodroofe, M. (2007). On the Unified Method with Nuisance Parameters. To appear in Statistica Sinica.
• Woodroofe, M. Sen, B. (2007). Discussion of 'The small-n problem in High Energy Physics' by Glen Cowan and 'Bayesian Methods in Particle Physics From Small- N to Large' by Harrison Prosper. Statistical Challenges in Modern Astronomy (SCMA) IV, (Eds. G.J.Babu and E.D.Feigelson), ASP Conference Series, 371, 98-100.
• Sen, B. Banerjee, M. (2006). A Pseudo-likelihood Method for Analyzing Interval Censored Data. Biometrika, 94, 71-86.
• Sen, B. (2005). Estimation and Comparison of Fractile Graphs using Kernel Smoothing Techniques. Sankhya, 67, 305-334. (Special issue on Quantile Regression and Related Methods)
• Sen, B., Banerjee, M., Woodroofe, M. (2007). Inconsistency of Bootstrap: the Grenander Estimator. (Submitted)
• Sen, B., Chaudhuri, P. (2007). On Fractile Regression. (To be submitted).
• Nag, A.K., Sen, B., Bhaumik, D. (2006). Interest Rate and Size of Credit - A Nonparametric Exploratory Analysis. (Submitted)

Interdisciplinary Publications

• Walker, M.G., Mateo, M., Olszewski, E.W., Bernstein, R., Sen, B., Woodroofe, M. (2007). The Michigan/MIKE Fiber System Survey of Stellar Radial Velocities in Dwarf Spheroidal Galaxies: Acquisition and Reduction of Data. Astrophysical Journal Supplement Series, 171, 389-418.
• Walker, M.G., Mateo, M., Olszewski, E.W., Gnedin, O.Y., Wang, X., Sen, B., Woodroofe, M. (2007). Velocity Dispersion Profiles of Seven Dwarf Spheroidal Galaxies, Astrophysical Journal, 667, L53-L56.
• Alonso, J., Mateo, M., Sen, B. (2007). Uncloaking globular clusters of the inner Galaxy. (To appear in IAU Symposium 245: Formation and Evolution of Galaxy Bulges)
• Walker, M.G., Mateo, M., Olszewski, E.W., Pal, J.K., Sen, B., Woodroofe, M. (2006). On Kinematic Substructure in the Sextans Dwarf Spheroidal Galaxy. Astrophysical Journal, 642, L41-L44.

Working papers

• Sen, B., Woodroofe, M. (2007). Bootstrap in Stereological Problems.
• Sen, B., Banerjee, M., Michailidis, G.(2007). Estimation of 'dose' thresholds using pvalues from independent experiments.
• Sen, B., Banerjee, M., Woodroofe, M., Walker, M.G. Mateo, M. (2007). Detecting structural change: Applications in Astronomy.
• Walker, M.G., Mateo, M., Sen, B., Banerjee, M., Woodroofe, M. (2007). Streaming Motion in the Dwarf Spheroidals.
• Woodroofe, M., Sen, B. (2007). Have we Seen a Signal Yet? A Necessary Condition for Claiming Discovery.

Conferences attended

• Joint Statistical Meetings (JSM) July, 2007.
• Joint Statistical Meetings (JSM) August, 2006. (Invited)
• Statistical inference Problems in High Energy Physics and Astronomy, July 2006. (Invited)
• Statistical Challenges in Modern Astronomy, June 2006.
• SAMSI High Energy Physics working group, March 2006. (Invited)
• SAMSI Astro-statistics Workshop, January 2006.