small typo
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@@ -354,7 +354,9 @@ in the data set (see the full example below).
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One simple way to get a discrete output is to have sign
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functions that map the output of a linear regressor to values $\{0,1\}$,
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$f(s_i)=sign(s_i)=1$ if $s_i\ge 0$ and 0 if otherwise.
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We will encounter this model in our first demonstration of neural networks. Historically it is called the ``perceptron" model in the machine learning
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We will encounter this model in our first demonstration of neural networks.
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Historically it is called the _perceptron_ model in the machine learning
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literature. This model is extremely simple. However, in many cases it is more
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favorable to use a ``soft" classifier that outputs
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the probability of a given category. This leads us to the logistic function.
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