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votes
3
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Application of the chain rule to $3$-layers neural network
Consider the differentiable functions $L^1(x,\theta^1),L^2(x^2,\theta^2),L^3(x^3,\theta^3)$, where every $x_k,\theta^k$ are real vectors, for $k=1,2,3$. Also define $\theta=(\theta^1,\theta^2,\theta^3)...
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3
votes
1
answer
197
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Implementing binary logistic regression from scratch
Background knowledge:
To train a logistic regression model for a classification problem with two classes (called class $0$ and class $1$), we are given a training dataset consisting of feature vectors ...
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