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Jason K. Johnson

Research Interests
      Inference and learning in probabilistic graphical models, statistical signal and image pro-
      cessing, statistical physics, multiscale methods, information theory, convex optimization
      and analysis.

Education
     Massachusetts Institute of Technology, Cambridge MA.
     Ph.D. Electrical Engineering and Computer Science, 2008.
     S.M. Electrical Engineering and Computer Science, 2003.
     Graduate Research Advisor: Prof. Alan Willsky
     S.B. Physics, 1995.
     Undergraduate Thesis Advisor: Prof. Edward Farhi

Professional Experience
      Postdoctoral Associate/Director’s Fellow                                      2008-2011
      Dr. Michael Chertkov                                                   Los Alamos, NM
      Center for Nonlinear Studies & Theoretical Division T-4, Los Alamos National Laboratory

       Research Assistant                                                            2000-2008
       Prof. Alan Willsky                                                        Cambridge, MA
       Laboratory for Information and Decision Systems, MIT

       Member of Technical Staff                                                        1995-2000
       Dr. Robert Washburn                                                       Burlington, MA
       Alphatech, Inc.

Selected Publications
Journal Articles
       JKJ, A. Willsky. A recursive model-reduction method for estimation in Gaussian Markov
       random fields. IEEE Transactions on Image Processing, v.17, no.1, pp.70–83, January 2008.
       http://ieeexplore.ieee.org

       D. Malioutov, JKJ, A. Willsky. Walk-sums and belief propagation in Gaussian graph-
       ical models. Journal of Machine Learning Research, v.7, pp.2031–2064, October 2006.
       http://jmlr.csail.mit.edu

       D. Malioutov, JKJ, M. Choi, A. Willsky. Low-rank variance approximation in GMRF
       Models: single and multiscale approaches. IEEE Transactions on Signal Processing, v.56,
       no.10, pp.4621–4634, October 2008. http://ieeexplore.ieee.org

       V. Chandrasekaran, JKJ, A. Willsky. Estimation in Gaussian graphical models using
       tractable sub-graphs: a walk-sum analysis. IEEE Transactions on Signal Processing, v.56,
       no.5, pp.1916-1930, May 2008.
       http://ieeexplore.ieee.org
M. Choi, V. Chandrasekaran, D. Malioutov, JKJ, A. Willsky. Multiscale stochastic model-
       ing for tractable inference and data assimilation. Computer Methods in Applied Mechanics
       and Engineering, v.197, pp.3492–3515, August 2008.
       http://sciencedirect.com

Conference Papers
       S. Kudekar, JKJ, M. Chertkov. Linear programming based detectors for two-dimensional
       intersymbol interference channels. Submitted to International Symposium on Information
       Theory. (in review)

       JKJ, P. Netrapalli, M. Chertkov. Learning planar Ising models. Submitted to 14th Inter-
       national Conference on Artificial Intelligence and Statistics. (in review)
       http://arxiv.org/abs/1011.3494

       JKJ, M. Chertkov. A Majorization-Minimization Approach to Design of Power Transmis-
       sion Networks. 49th IEEE Conference on Decision and Control, December 2010.
       http://arxiv.org/abs/1004.2285

       JKJ, V. Chernyak, M. Chertkov. Orbit-Product Representation and Correction of Gaussian
       Belief Propagation. International Conference on Machine Learning, June 2009.
       http://arxiv.org/abs/090.3769
       http://videolectures.net/jason k johnson

       JKJ, D. Bickson, D. Dolev. Fixing convergence of Gaussian belief propagation. Interna-
       tional Symposium of Information Theory, July 2009.
       http://arxiv.org/abs/0901.4192

       JKJ, V. Chandrasekaran, A. Willsky. Learning Markov structure by maximum entropy
       relaxation. 11th Inter. Conf. on Artificial Intelligence and Statistics (AISTATS), March
       2007. http://www.stat.umn.edu/∼aistat/proceedings/start.htm

       JKJ, D. Malioutov, A. Willsky. Lagrangian relaxation for MAP estimation in graphical
       models. 45th Allerton Conf. on Communication, Control and Computing, September 2007.
       http://www.csl.uiuc.edu/allerton/archives/allerton07/papers/0250.pdf

       JKJ, D. Malioutov, A. Willsky. Walk-sum interpretation and analysis of Gaussian belief
       propagation. Advances in Neural Information Processing Systems (NIPS), v.18, pp.579–
       586, December 2005.
       Selected for ”spot-light” at the conference.
       http://books.nips.cc/nips18.html

       V. Chandrasekaran, JKJ, A. Willsky, Adaptive embedded subgraph algorithms using walk-
       sum analysis. Advances in Neural Information Processing Systems (NIPS), v.20, December
       2007. http://books.nips.cc/nips20.html

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CV

  • 1. Jason K. Johnson Research Interests Inference and learning in probabilistic graphical models, statistical signal and image pro- cessing, statistical physics, multiscale methods, information theory, convex optimization and analysis. Education Massachusetts Institute of Technology, Cambridge MA. Ph.D. Electrical Engineering and Computer Science, 2008. S.M. Electrical Engineering and Computer Science, 2003. Graduate Research Advisor: Prof. Alan Willsky S.B. Physics, 1995. Undergraduate Thesis Advisor: Prof. Edward Farhi Professional Experience Postdoctoral Associate/Director’s Fellow 2008-2011 Dr. Michael Chertkov Los Alamos, NM Center for Nonlinear Studies & Theoretical Division T-4, Los Alamos National Laboratory Research Assistant 2000-2008 Prof. Alan Willsky Cambridge, MA Laboratory for Information and Decision Systems, MIT Member of Technical Staff 1995-2000 Dr. Robert Washburn Burlington, MA Alphatech, Inc. Selected Publications Journal Articles JKJ, A. Willsky. A recursive model-reduction method for estimation in Gaussian Markov random fields. IEEE Transactions on Image Processing, v.17, no.1, pp.70–83, January 2008. http://ieeexplore.ieee.org D. Malioutov, JKJ, A. Willsky. Walk-sums and belief propagation in Gaussian graph- ical models. Journal of Machine Learning Research, v.7, pp.2031–2064, October 2006. http://jmlr.csail.mit.edu D. Malioutov, JKJ, M. Choi, A. Willsky. Low-rank variance approximation in GMRF Models: single and multiscale approaches. IEEE Transactions on Signal Processing, v.56, no.10, pp.4621–4634, October 2008. http://ieeexplore.ieee.org V. Chandrasekaran, JKJ, A. Willsky. Estimation in Gaussian graphical models using tractable sub-graphs: a walk-sum analysis. IEEE Transactions on Signal Processing, v.56, no.5, pp.1916-1930, May 2008. http://ieeexplore.ieee.org
  • 2. M. Choi, V. Chandrasekaran, D. Malioutov, JKJ, A. Willsky. Multiscale stochastic model- ing for tractable inference and data assimilation. Computer Methods in Applied Mechanics and Engineering, v.197, pp.3492–3515, August 2008. http://sciencedirect.com Conference Papers S. Kudekar, JKJ, M. Chertkov. Linear programming based detectors for two-dimensional intersymbol interference channels. Submitted to International Symposium on Information Theory. (in review) JKJ, P. Netrapalli, M. Chertkov. Learning planar Ising models. Submitted to 14th Inter- national Conference on Artificial Intelligence and Statistics. (in review) http://arxiv.org/abs/1011.3494 JKJ, M. Chertkov. A Majorization-Minimization Approach to Design of Power Transmis- sion Networks. 49th IEEE Conference on Decision and Control, December 2010. http://arxiv.org/abs/1004.2285 JKJ, V. Chernyak, M. Chertkov. Orbit-Product Representation and Correction of Gaussian Belief Propagation. International Conference on Machine Learning, June 2009. http://arxiv.org/abs/090.3769 http://videolectures.net/jason k johnson JKJ, D. Bickson, D. Dolev. Fixing convergence of Gaussian belief propagation. Interna- tional Symposium of Information Theory, July 2009. http://arxiv.org/abs/0901.4192 JKJ, V. Chandrasekaran, A. Willsky. Learning Markov structure by maximum entropy relaxation. 11th Inter. Conf. on Artificial Intelligence and Statistics (AISTATS), March 2007. http://www.stat.umn.edu/∼aistat/proceedings/start.htm JKJ, D. Malioutov, A. Willsky. Lagrangian relaxation for MAP estimation in graphical models. 45th Allerton Conf. on Communication, Control and Computing, September 2007. http://www.csl.uiuc.edu/allerton/archives/allerton07/papers/0250.pdf JKJ, D. Malioutov, A. Willsky. Walk-sum interpretation and analysis of Gaussian belief propagation. Advances in Neural Information Processing Systems (NIPS), v.18, pp.579– 586, December 2005. Selected for ”spot-light” at the conference. http://books.nips.cc/nips18.html V. Chandrasekaran, JKJ, A. Willsky, Adaptive embedded subgraph algorithms using walk- sum analysis. Advances in Neural Information Processing Systems (NIPS), v.20, December 2007. http://books.nips.cc/nips20.html