Gradient Based Attribution
Overview
The gradient based attribution is based on the following formula.
{% \Delta f \approx \nabla f \cdot \vec{\Delta x} %}
The change in a function can be approximated by calculating the gradient of the function at that point
and taking the dot product with a vector of the differences of the arguments of f.
The change calculated this way is only approximate, so there will be an error or an unexplained portion.
