weighted sum
The sum of all the relevant input values multiplied by their corresponding weights.
Plain English Explanation
The sum of all the relevant input values multiplied by their corresponding weights. For example, suppose the relevant inputs consist of the following:
A weighted sum is the input argument to an activation function.
How is it used?
Practitioners refer to weighted sum when building, training, or evaluating machine learning systems. It appears in research papers, product documentation, and technical discussions about AI capabilities and limitations.