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Constantin A. Rothkopf |
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I'm currently a 4th year graduate student at the Center for Visual Science in the Brain and Cognitive Science Department at the University of Rochester working towards a joint PhD in Brain and Cognitive Science and Computer Science. My advisors are Dana Ballard and Mary Hayhoe. My research interests revolve around the distinction between 'looking' and 'seeing'. I am currently studying human eye movements in extended behavior and how they depend on the ongoing task. This requires to work with behavioral, theoretical, and computational methods. We observe how humans use their visual system, build models of the tasks they execute, and implement algorithms that learn how to solve these tasks in virtual agents. If you are looking for some of my other activities, please follow this link. |
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| Publications: | ||
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C. A. Rothkopf, D. H. Ballard: ’A credit assignment algorithm for modular reinforcement learning’, (submitted) | |
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C. A. Rothkopf, D. H. Ballard, M.M. Hayhoe: 'Task and context determine where you look'. Journal of Vision, 7(14):16, 1-20, 2007. [pdf], [html] |
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J.
B. Pelz, C. Rothkopf: ‘Oculomotor behavior while navigating
natural and
man-made environments’ in ‘Eye movements: A window
on mind and
brain’, Editors: Roger van Gompel, Martin
Fischer, Wayne Murray,
Robin Hill. Elsevier Press, 2007 |
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J.
F. M. Jehee, C. A.
Rothkopf, J.
M. Beck, D. H. Ballard: 'Learning receptive fields using predictive
feedback', Journal of Physiology Paris, 100, 125-132, 2006 [pdf] |
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R.
D. Meyer, E. P. Horch, Z. Ninkov, W.F. van Altena, C.A. Rothkopf:
‘RYTSI: the
Rit-Yale-Tip-Tilt-Speckle-Imager’, Publications of the
Astronomical Society of
the Pacific, 118 , 162-171, 2006 [pdf] |
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C.
A. Rothkopf, J. B. Pelz: ‘Head movement estimation for
wearable eye tracker’,
Proceedings of the Eye Tracking Research & Application
Symposium, ETRA
2004, San Antonio, Texas, USA, 2004 [pdf] |
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Conference Talks: M. Burigo, C. A. Rothkopf: 'Are you expecting a change? Advantages in focusing on the details', ESCOP - European Society for Cognitive Psychology, August 29-September 1, 2007, Marseille, France C. A. Rothkopf, D. H. Ballard: 'Credit assignment with Bayesian reward estimation', COSYNE - Computational and Systems Neuroscience, March 22-25, 2007, Salt Lake City, Utah, USA J. Fiser, R. N. Aslin, A. Lathrop, C. Rothkopf, J. Markant: ‘An infants' eye view of the world: Implications for learning in natural contexts’, International Conference on Infant Studies, June 19-23, 2006, Kyoto, Japan C. A. Rothkopf, D. H. Ballard, B. T. Sullivan, K. de Barbaro : ‘Bayesian modeling of task dependent visual attention strategy in a virtual reality environment’, 5th annual meeting of the Vision Science Society, May 6-11, 2005, Sarasota, Florida, USA D. H. Ballard, C. Rothkopf: ‘Learning visual representations with projection pursuit’, 5th annual meeting of the Vision Science Society, May 6-11, 2005, Sarasota, Florida, USA Conference Posters: C. A. Rothkopf, D. H. Ballard: 'Relating contrast statistics at fixation location to navigational control law', 7th annual meeting of the Vision Science Society, May 11-16, 2007, Sarasota, Florida, USA J. B. Pelz, C. A. Rothkopf: 'Task dependence of space-time statistics at point of gaze revealed by eye tracking in natural wooded environment', 7th annual meeting of the Vision Science Society, May 11–16, 2007, Sarasota, Florida, USA J. B. Pelz, C. A. Rothkopf: ' Task dependence of image statistics at the point of gaze in a natural wooded environment', COSYNE - Computational and Systems Neuroscience, March 22-25, 2007, Salt Lake City, Utah, USA C.
Rothkopf, D.
Ballard, M. Hayhoe: 'Credit assignment in visuo-motor behaviors using a
consumable global reward signal', Society for Neuroscience Annual
Meeting, October 14 - October 18, 2006, Atlanta, Georgia, USA
D.
H Ballard, C. Rothkopf: ‘Getting Credit Assignment Right in
Visuo-Motor Behaviors’, 6th annual meeting of the Vision Science Society, May 5 – May
10, 2006, Sarasota, Florida, USA
C. Rothkopf, M. M. Hayhoe, K. Parkins: ‘Predictive eye movements in physically possible and impossible worlds: evidence for internal models’, 6th annual meeting of the Vision Science Society, May 5 – May 10, 2006, Sarasota, Florida, USA C. Rothkopf, D. H Ballard: ‘A credit assignment algorithm for composite visuo-motor behaviors’, COSYNE - Computational and Systems Neuroscience, March 5-8, 2006, Salt Lake City, Utah, USA J. B. Pelz, C. A. Rothkopf, S. R. Broskey: ‘Version and vergence eye movements in mobile observers’, 5th annual meeting of the Vision Science Society, May 6 – May 11, 2005, Sarasota, Florida, USA C. Rothkopf, D. H. Ballard, J. Shaw, M. Ambastha: ‘Coding Cortical Hierarchies Using Projection Pursuit’, COSYNE - Computational and Systems Neuroscience, 2005, Salt Lake City, Utah, USA C. Rothkopf, W.J. Ma, P.E. Latham, D. Bavelier, A. Pouget: ‘Learning rules for unsupervised perceptual learning, COSYNE - Computational and Systems Neuroscience, 2005, Salt Lake City, Utah, USA |
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| Collaborators
past & present: Jeff Beck Michele Burigo Jozsef Fiser Janneke F.M. Jehee Wei Ji Ma Jeff Pelz Alexandre Pouget |
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Education: PhD student, Brain and Cognitive Sciences Department, University of Rochester, 2003-2007(expected) BS in Imaging Science with minors in Mathematics and Psychology (highest honor), Rochester Institute of Technology, 1999-2003 |
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| Code:
coming soon... |
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