Greg Shakhnarovich

Assistant Professor Toyota Technological Institute at Chicago 6045 S. Kenwood Ave. Chicago, IL 60637 e-mail gregory at tti-c dot org tel +1 (773) 834-2572 fax +1 (773) 834-9881

Research	Papers	Personal	Code, data etc.	Vision reading group
Mirrors:	http://ttic.uchicago.edu/~gregory	http://cs.brown.edu/~gregory

Brief bio:

Since February 2008, I am an Assistant Professor at TTI-Chicago, a philanthropically endowed academic computer science institute located on the University of Chicago campus.
We at TTI-Chicago continue to admit students to our PhD program. Please contact me for details.

Prior to coming to TTI-Chicago, I was a post-doctoral researcher at the Department of Computer Science of Brown University where I worked with Michael Black. I received my PhD degree at MIT where I worked at CSAIL with Trevor Darrell on computer vision and machine learning. My thesis topic was Learning Task-Specific Similarity.

Before coming to MIT, I was a graduate student in the Computer Science Department of the Technion, Israel Institute of Technology in Haifa, Israel, where I got my MSc thesis under the advisement of Ran El-Yaniv and Yoram Baram. I got my undergraduate degree in Math and CS from Hebrew University in Jerusalem, Israel.

My CV: PDF

Research interests:

• Computational vision
• Machine learning
• Brain-machine interfaces

MsC thesis, Technion, 2001: Statistical Data Cloning for Machine Learning. Advisors: Ran El-Yaniv and Yoram Baram.

PhD thesis, MIT, 2006: Learning Task-Specific Similarity. Advisor: Trevor Darrell.

Publications by area:

• Neural decoding and prostheses

P. Yadollahpour, G. Shakhnarovich, C. Vargas-Irwin, J.P. Donoghue, M.J. Black, "Decoding of Reach and Grasp from MI Population Spiking Activity Usinga Low-Dimensional Model of Handand Arm Posture", SfN (poster), 2008.

C. Vargas-Irwin, P. Yadollahpour, G. Shakhnarovich, M. J. Black, J. P. Donoghue, "Reconstructing Reach and Grasp Actions Using Neural Population Activity from Primary Motor Cortex", SfN (poster), 2008.

P. K. Artemiadis, G. Shakhnarovich, C. Vargas-Irwin, J. P. Donoghue, M. J. Black, "Decoding grasp aperture from motor-cortical population activity", accepted to IEEE Conf. on Neural Engineering, 2007. [pdf]

G. Shakhnarovich, S.-P. Kim, M. J. Black, "Nonlinear physically-based models for decoding motor-cortical population activity", NIPS 2006. [pdf]
The SfN 2006 poster [pdf] describes the same work.

• Machine learning (non-vision)

A. Ritz, G. Shakhnarovich, A. R. Salomon, B. J. Raphael, "Discovery of Phosphorylation Motif Mixtures in Phosphoproteomics Data". Bioinformatics, (to appear) 2008. abstract

C. Demiralp, G. Shakhnarovich, S. Zhang, D. H. Laidlaw, "Slicing-based coherence measure for refining clusters of 3D curves." Proceedings of MICCAI Conference, 2008. [pdf]

N. Srebro, G. Shakhnarovich, S. Roweis, "An Investigation of Computational and Informational Limits in Gaussian Mixture Clustering". Proccedings of International Conference on Machine Learning, 2006. [pdf] [UoT technical report]

G. Shakhnarovich, J. Fisher, "Performance of Approximate Nearest Neighbor Classification". Poster presented at Machine Learning Workshop at Snowbird, 2006, with preliminary results (work in progress).

G. Shakhnarovich, T. Darrell, P. Indyk, editors, "Nearest-Neighbors methods in Learning and Vision: Theory and Practice". MIT Press, 2006.

B. Moghaddam, G. Shakhnarovich, "Boosted Dyadic Kernel Discriminants", Neural Information Processing Systems, 2002. [ps]

G. Shakhnarovich, R. El-Yaniv, Y. Baram, "Smoothed Bootstrap and Statistical Data Cloning for Classifier Evaluation", Proccedings of International Conference on Machine Learning, 2001. [pdf]

• Machine learning and computer vision

L. Taycher, G. Shakhnarovich, D. Demirdjian, and T. Darrell, "Conditional Random People: Tracking Humans with CRFs and Grid Filters". Proceedings IEEE Conf. on Computer Vision and Pattern Recognition, 2006. [pdf]
Also in MIT CSAIL Technical Report MIT-CSAIL-2005-079, 2006 [pdf]

D. Demirdjian, L. Taycher, G. Shakhnarovich, K. Grauman, T. Darrell, "Avoiding the Streetlight Effect: Tracking by Exploring Likelihood Modes", Proceedings of the International Conference on Computer Vision,2005. [pdf]

L. Ren, G. Shakhnarovich, J. Hodgins, H. Pfister, P. Viola, "Learning Silhouette Features for Control of Human Motion", ACM Transactions on Graphics,2005. [pdf]

O. Aranjelovic, G. Shakhnarovich, J. Fisher, R. Cippola, T. Darrell, "Face Recognition with Image Sets Using Manifold Density Divergence", Proceedings IEEE Conf. on Computer Vision and Pattern Recognition, pp. 581--588, 2005. [pdf]

G. Shakhnarovich, B. Moghaddam, "Face Recognition in Subspaces", In Handbook of Face Recognition, S. Z. Li and A. K. Jain, Ed. Springer-Verlag,2004. [pdf]

K. Grauman, G. Shakhnarovich, T. Darrell, "Virtual Visual Hulls: Example-Based 3D Shape Inference from a Single Silhouette", Proceedings of the 2nd Workshop on Statistical Methods in Video Processing,2004. [pdf]

G. Shakhnarovich, P. Viola, T. Darrell, "Fast Pose Estimation with Parameter Sensitive Hashing", Proceedings of the International Conference on Computer Vision,2003.[pdf]

K. Grauman, G. Shakhnarovich, T. Darrell, "Inferring 3D Structure with a Statistical Image-Based Shape Model", Proceedings of the International Conference on Computer Vision,2003. [pdf]

K. Grauman, G. Shakhnarovich, T. Darrell, "A Bayesian Approach to Image-Based Visuall Hull Reconstruction", Proceedings IEEE Conf. on Computer Vision and Pattern Recognition,2003.[pdf]

G. Shakhnarovich, J. W. Fisher, T. Darrell, "Face recognition from long-term observations", Proceedings of European Conference on Computer Vision,2002. [pdf]

G. Shakhnarovich, T. Darrell, "On Probabilistic Combination of Face and Gait Cues for Identification", Proceedings of the Int. Conf. on Automatic Face and Gesture Recognition,2002. [pdf]

G. Shakhnarovich, P. Viola, B. Moghaddam, "A Unified Learning Framework for Real Time Face Detection and Classification", Proceedings of the Int. Conf. on Automatic Face and Gesture Recognition,2002. [pdf]

G. Shakhnarovich, L. Lee, T. Darrell, "Integrated Face and Gait Recognition From Multiple Views", Proceedings IEEE Conf. on Computer Vision and Pattern Recognition,2001. [pdf]