Authors and Affiliations

1. Dept of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA

   William Freeman

2. Dept of Electrical Engineering and Computation and Neural Systems, California Institute of Technology, Pasadena, CA, 91125, USA

   Pietro Perona

3. Dept of Empirical Inference, Max Planck Institute for Biological Cybernetics, 72076, Tübingen, Germany

   Bernhard Schölkopf

Corresponding author

Correspondence toWilliam Freeman.

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