When David Marr at MIT moved into computer vision, he generated a lot of excitement, but he hit up against the problem of knowledge representation; he had no good representations for knowledge in his vision systems.
More Quotes from Marvin Minsky:Around 1967 Dan Bobrow wrote a program to do algebra problems based on symbols rather than numbers.
There are three basic approaches to AI: Case-based, rule-based, and connectionist reasoning.
By the way, it was his simulations that helped out in Jurassic Park - without them, there would have been only a few dinosaurs. Based on his techniques, Industrial Light and Magic could make whole herds of dinosaurs race across the screen.
Once when I was standing at the base, they started rotating the set and a big, heavy wrench fell down from the 12 o'clock position of the set, and got buried in the ground a few feet from me. I could have been killed!
There was a failure to recognize the deep problems in AI; for instance, those captured in Blocks World. The people building physical robots learned nothing.
A major problem with AI research then was that Ph.D. dissertations were huge programs, and only the writer knew how they worked.
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