Ramki Gummadi

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I am currently a senior researcher at Vicarious, an AI company in the SF Bay Area. Prior to this, I worked as a data scientist (and briefly, as software engineer) for two years at Facebook in the ads delivery product group in Menlo Park. I received my Ph.D. from the department of ECE at the University of Illinois in Urbana-Champaign in December 2011 with a dissertation on rateless erasure codes for communication networks. I was then a postdoc at Stanford until spring 2014, working on multiarmed bandits and mechanism design in Ramesh Johari's group. From Spring to Fall of 2014, I was a postdoc at the University of Alberta in the RLAI Lab, hosted by Dale Schuurmans.

Program Committee Service: AAAI (2018, 2017), NIPS workshop on Advances in Approximate Bayesian Inference (2015, 2016).
Journal Review Service: IEEE Transactions on Information Theory, IEEE Transactions on Automatic Control, IEEE Trans on Communications, IEEE/ACM Transactions on Networking, IEEE Journal on Selected Areas in Communications, Operations Research.

Papers

A. Grover*, R. Gummadi*, M. Lazaro-Gredilla, D. Schuurmans, S. Ermon, ‘‘ Resampled Proposal Distributions for Stochastic Variational Inference and Learning’’. Appeared at the ICML 2017 workshop on Principled Approaches to Deep Learning, and the ICML 2017 workshop on Implicit Models.
* indicates joint primary authorship.

R. Gummadi, ‘‘ Resampled Belief Networks for Variational Inference ’’. Extended abstract appeared at the NIPS 2014 workshop on Advances in Variational Inference.
Presentation slides google doc.

H. Bastani, M. Bayati, M. Braverman, R. Gummadi, R. Johari, ‘‘ Analysis of Pay for Performance Medicare Contracts ’’, SSRN working paper, 2016.

R. Gummadi, R. Johari, S. Schmit, J. Yu, ‘‘ Mean Field Analysis of Multi Armed Bandit Games’’, under review with Mathematics of Operations Research, Oct 2016.
Presentation Slides in pptx.
Preliminary versions appeared in ACM Conference on Electronic Commerce (EC), June, 2012, Valencia, Spain and Allerton Annual Conference on Communications, Control and Computing, Monticello, IL, October 2012.

R. Gummadi, P. Key, A. Proutiere, ‘‘Optimal Bidding Strategies and Equilibria in Repeated Auctions with budget constraints’’, SSRN Working Paper, October 2013.
Presentation Slides in pptx.
Preliminary versions appeared in Allerton Annual Conference on Communications, Control and Computing, September 2011 and in Ad Auctions Workshop 2012, Valencia, Spain.

R. Gummadi, L. Massoulie, R. Sreenivas, ‘‘ The Role of Feedback in the choice between routing and coding for wireless unicast ’’, Physical Communication, Special Issue on Wireless Network Coding (Elsevier), Vol 6, pp. 88-99, 2013.
Presentation Slides in pdf.
A preliminary version appeared in Proceedings of IEEE International Symposium on Network Coding, June 2010.

R. Gummadi, R. Sreenivas, ‘‘ Erasure Codes with Efficient Repair’’, accepted to the IEEE Information theory workshop, 2011.
Presentation Slides in pptx.
Note: Paper was not actually presented at the conference due to visa issues.

R. Gummadi, R. Sreenivas, N. Singh, ‘‘ On Tractable Instances of Modular Supervisory Control’’, IEEE Transactions on Automatic Control, Vol 56(7), pp. 1621-1635, August 2011.

R. Gummadi, A. Shokrollahi, R. Sreenivas, ‘‘Broadcasting with Side Information Using Fountain Codes’’, Proceedings of IEEE Information Theory Workshop, pp. 1-5, January 2010.
Presentation Slides in pdf.

R. Gummadi, ‘‘Optimal Control of a Broadcasting Server’’, Proceedings of IEEE Conference on Decision and Control (CDC), pp. 2634-2639, December, 2009.
Presentation Slides in pdf.

R. Gummadi, K. Jung, D. Shah, R. Sreenivas, ‘‘Computing the Capacity Region of a Wireless Network ’’, Proceedings of the IEEE International Conference on Computer Communications (INFOCOM), pp. 1341-1349, April 2009.
Presentation Slides in pdf.

R. Gummadi, R. Sreenivas, ‘‘Relaying a Fountain Code across multiple Nodes’’, Proceedings of IEEE Information Theory Workshop, pp. 149-153, May, 2008.
Presentation Slides in pdf.
Also appeared as a poster at SIGCOMM, May 2008.

R. Gummadi, K. Jung, D. Shah, R. Sreenivas, ‘‘Feasible Rate Allocation in Wireless Networks’’, Proceedings of IEEE International Conference on Computer Communications (INFOCOM), pp. 13-18, April 2008.
Presentation Slides in pdf.

Link to Google scholar profile.