Contact Info

Primary Title: 
Assistant Professor
Email Contact: 
Voice Contact: 
(541) 737-1670
Office: 
Weniger Hall, Room 271

Introduction

I am an Assistant Professor in Department of StatisticsOregon State University

My research interests lie in several fields of statistics including statistical inference of networks, high-dimensional statistical inference, clustering, semiparametric inference and hypothesis testing. I am also interested in the application of statistical methods in astronomy, genomics and neuroscience.

Before joining Oregon State University in Spring 2015, I was a post-doctoral research scholar in Department of StatisticsUniversity of California, Berkeley. I am also involved in projects with Life Sciences Division, Lawrence Berkeley National Laboratory. I completed my PhD in Statistics from University of California, Berkeley in 2013 under supervision of Prof. Peter J. Bickel. Before that, I completed B.Stat and M.Stat from Indian Statistical Institute, Kolkata.

 

Here is a link to my academic webpage.

 

Research Interests

  • Statistics on graphs and networks.
  • Statistical application in Neuroscience.
  • Statistical Genetics: Formation and analysis of biological networks.
  • High-dimensional structured density estimation and Anomaly detection.
  • Unsupervised learning especially clustering and manifold learning.
  • Application of Statistics in Astronomy and Astrophysics.
  • Multiple hypothesis testing.
  • Semiparametric and nonparametric statistical techniques and Time-series analysis.

 

Papers

Methodological

1. Bhattacharyya, Sharmodeep; Bickel, Peter J. Subsampling bootstrap of count features of networks. Ann. Statist. 43 (2015), no. 6, 2384–2411.

2. Bhattacharyya, Sharmodeep, and Peter J. Bickel. "Spectral Clustering and Block Models: A Review And A New Algorithm." arXiv preprint arXiv:1508.01819 (2015).

3. Bhattacharyya, Sharmodeep, and Peter J. Bickel. "Community detection in networks using graph distance." arXiv preprint arXiv:1401.3915 (2014).

4. Bhattacharyya, Sharmodeep, and Peter J. Bickel. "Adaptive Estimation in Elliptical Distributions with Extensions to High Dimensions." (2013)

5. Bhattacharyya, Sharmodeep, and Peter J. Bickel. "Detecting Number of Clusters by Testing Block Diagonal Behavior of Similarity Matrix." (2011)

Applied

1. Bhattacharyya, Sharmodeep, et al. "Identification of Outliers Through Clustering and Semi-supervised Learning for All Sky Surveys." Statistical Challenges in Modern Astronomy V. Springer New York, 2012. 483-485.

 

Teaching

  • Theory of Statistics II (ST 562)
  • Modern Statistical Methods for Large and Complex Data (ST 599)

 

Professional Societies

  • American Statistical Association

Education

PhD in Statistics, University of California at Berkeley, 2013.
M.Stat, Indian Statistical Institute, Kolkata, 2008.
B.Stat, Indian Statistical Institute, Kolkata, 2006.