Biases
Domain: AI Fundamentals
🎯 Motivation
A bias shifts the neuron output so it can fire even when inputs are zero, giving the model flexibility.
📋 Concrete Example
A neuron with bias = -2 will not fire easily. Changing bias to +3 makes it fire more often for the same inputs.
🔗 Analogy
Like a thermostat offset - even if the room temperature reading is the same, you can nudge the system to heat earlier.