Academic Background

I obtained my Ph.D in Operations Research from Cornell University under the supervision of Prof. Rick Durrett .

I did my Bachelors (B.Stat.) and Masters (M.Stat.) in Statistics with specialization in Mathematical Statistics and Probability from Indian Statistical Institute, Kolkata. I received M.S. in Operations Research and Information Engineering from the Department of OR & IE of Cornell University. My thesis advisor is Rick Durrett.

Research Interests

Structure and behavior of networks arising in applications to biology, social science, economics, computer science, physics; evolution of and dynamics on such networks; relevant statistical inference, machine learning and game theoretic problems on such networks, stochastic spatial and growth models, disordered systems.

Curriculum Vitae: CV , Resume/Short CV

Publications and Work in Progress (in reverse chronological order)

• On the convergence of 'belief propagation type' algorithms for detecting overlapping communities.
  In Progress.


• Thresholds for detecting trails with unknown initial location in a Gaussian environment.
  Joint work with Ofer Zeitouni.
  In Progress.


• First passage percolation on large finite graphs with heterogeneous edge-weights.
  Joint work with Shankar Bhamidi and Partha Dey.
  In Progress.


• First-passage percolation on the hypercube.
  Joint work with Shankar Bhamidi, Partha Dey and Remco van dr Hofstad.
  In Progress.


• Dynamics of latent voters on locally tree-like random graphs.
  Joint work with Rick Durrett and Junchi Li.
  Near Completion. Preliminary version.


• Multiple phase transitions in long-range first-passage percolation on square lattices.
  Joint work with Partha S. Dey.
  Submitted, 2013. Available at the arXiv


• The order-chaos phase transition for a general class of complex Boolean networks.
  Submitted, 2013. Available at the arXiv.


• Jigsaw percolation: What social networks can collaboratively solve a puzzle?
  Joint work with Charles D. Brummitt, Partha S. Dey and David Sivakoff.
  Submitted, 2012. Available at the arXiv.


• A first order phase transition in the threshold-θ≥ 2 contact process on random r-regular graphs and r-trees.
  Joint work with Rick Durrett.
  Stochastic Processes and Their Applications 123 (2013), no. 2, 561-578.


• Asymptotic Behavior of Aldous' Gossip Process.
  Joint work with Rick Durrett.
  Annals of Applied Probability 21 (2011) , no. 6, 2447-2482.


• Persistence of Activity in Threshold Contact Processes, an "Annealed Approximation" of Random Boolean Networks .
  Joint work with Rick Durrett.
  Random Structures & Algorithms 39 (2011), issue 2, 228 - 246.


• Contact processes on random graphs with power-law degree distributions have critical value 0.
  Joint work with Rick Durrett.
  Annals of Probability 37 (2009), no. 6, 2332-2356.


• Statistical Learning Based on High Dimensional Data: some issues and remedies for high dimensionality in clustering and classification.
  Masters Thesis, supervised by Debasis Sengupta and Probal Chaudhuri, Indian Statistical Institute, 2006.

Talk Slides

• Order-chaos phase transition for complex Boolean networks.


• Long-range first-passage percolation on square lattices.


• Latent Voter model on random regular graph.


• Threshold-two contact process on random regular graphs.


• Aldous' Gossip process.


• Random Boolean Network.


• Contact process on power-law random graphs.

Talks

• Invited talk at the Probability Seminar, Department of Mathematics and Computer Science, Eindhoven University of Technology, The Netherlands, June 2013.


• Invited talk at the Mathematical Physics and Probability Seminar, Department of Mathematics, University of California, Davis, USA, April 2013.


• Invited talk at the conference "Limit Theorems in Probability" at the Indian Institute of Science, India, January 2013.


• Invited talk at the Dynamical Systems Seminar, Courant Institute of Mathematical Sciences, New York University, USA, October 2012.


• Invited talk at the Probability Seminar, Department of Mathematics, Stockholm University, Sweden, August 2012.


• Invited talk at the Probability Seminar, Department of Statistics & Operations Research, University of North Carolina Chapel Hill, USA, March 2012.


• Invited talk at the Probability Seminar, Department of Mathematics, Cornell University, USA, April 2011.


• Invited talk at the Workshop on ``Dynamics on Networks", Statistical and Applied Mathematical Science Institute, USA, March 2011.


• Invited talk at the Probability and Mathematical Physics seminar, The Courant Institute of Mathematical Sciences, USA, December 2010.


• Contributed talk at the Ninth Northeast Probability Seminar, City University of New York, USA, November 2010.


• Invited talk at the Probability Seminar, Department of Mathematics, Duke University, USA, October 2010.


• Contributed poster at the Opening Workshop on Complex Networks, Statistical and Applied Mathematical Science Institute, USA, August 2010.


• Invited talk at the Probability Seminar, Indian Statistical Institute (Kolkata), India, January 2010.


• Contributed talk at the Arizona School of Analysis with Applications, USA, March 2010.


• Invited talk at the Probability Seminar, Department of Mathematics, Cornell University, USA, April 2009.


• Contributed talk at the Summer School in Probability, Pacific Institute of Mathematical Sciences, Canada, July 2009.


• Contributed talk at the Seminar in Stochastic Processes, Stanford University, USA, March 2009.


• Contributed talk at the Second Graduate Student Conference in Probability, University of Wisconsin Madison, USA, May 2008.


• Contributed talk at the Sixth Northeast Probability Seminar, City University of New York, USA, November 2007.


• Invited talk at PCM International Symposium on Statistics, Indian Statistical Institute (Kolkata), India, June 2006.

Awards

• Graduate Fellowship, Cornell University, 2006-07


• SHUM Award, School of Operations Research & Information Engineering, Cornell University, 2006-07, 2007-08.