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1. Introduction and Overview   163




                     But the purpose of this paper is not to relitigate the past. Section 2 will explain a
                  few of the key concepts of deep learning, starting from the recent industry interest
                  and working back to what underlies it. The methods which have become widely used
                  in the computer industry since 2011 validate the idea of trying to learn fundamental
                  principles from the brain, but they still fall far short of fully exploiting the funda-
                  mental design capabilities which can be found even in the brain of the mouse. We
                  now have a solid mathematical path for how to build such a high level of intelligence
                  [5], including many powerful methods which have been applied in engineering but
                  not yet widely disseminated in computer science; Section 3 will discuss a few
                  examples, with pointers to where you can learn the all-important technical details.


                  1.3 NEED AND OPPORTUNITY FOR A DEEP LEARNING REVOLUTION
                      IN NEUROSCIENCE

                  The deep learning cultural revolution in computer science was a great advance, but
                  in my view, we still need another cultural revolution in the field of computational
                  neuroscience, which has yet to assimilate new findings about how intelligence works
                  at a systems level in the brain, despite a series of NSF efforts to build bridges be-
                  tween the relevant disciplines [1,2,6], and great efforts by systems neuroscientists
                  like Karl Pribram and Walter Freeman [7] to broaden the paradigm. Section 4
                  will review recent research opening the door to a whole new paradigm here [8,9],
                  and some of the important previous work leading up to it.
                     Fig. 8.1 illustrates the research goals and strategy of the cross-cutting NSF initia-
                  tive in cognitive optimization and prediction which I proposed and led in 2008, and
                  did my best to continue funding as part of my core program in the Engineering
























                  FIGURE 8.1
                  Vision of the NSF COPN research initiative of 2008 [6].
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