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Artificial Intelligence & Machine Learning
Q37 / 100
What is an activation function?
Correct! Well done.
Incorrect.
The correct answer is B) A non-linear function applied to each neuron's output, enabling neural networks to learn complex non-linear mappings
B
Correct Answer
A non-linear function applied to each neuron's output, enabling neural networks to learn complex non-linear mappings
Explanation
Without activation functions, neural networks are just linear transformations. ReLU (max(0,x)) is most common. Sigmoid (output 0-1) for binary output. Softmax for multi-class output. GELU, Swish used in Transformers.
Progress
37/100