Exclusive Or (Xor)
- Xor is a simple logical function.
- You can have cake or ice cream, but not both. A is
have ice cream, and B is have cake.
-
- Minsky and Papert noted how a perceptron couldn't learn
xor.
- Similarly, it's going to be difficult to learn it from
a Hebbian network with all neurons as inputs and outputs.
- If the inputs are A and B (or A=T, A=F, B=T, B=F) and
the outputs are T and F, then they all co-fire the
same.
- Spontaneous firing supports an internal layer that
can then solve this problem.
