19.7 Weighing Evidence


Minsky provides an account of weighing evidence that is similar in spirit to feature weight summation. What kind of machine could do this? A perceptron! Minsky backpeddles a bit, then ... "All feature-weighing machines have serious limitations because, although they can measure the presence or absence of various features, they cannot take into account enough of the relations among those features." (NB: I don't think this claim is right, because finding such relations are exactly the purpose of hidden units. At any rate, though, Minsky's sympathy with connectionism is coming through.)


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