The main aim of neural networks
People are much better than computers at recognizing
patterns. How do they do it?
Neurons in the perceptual system represent features
of the sensory input.
The brain learns to extract many layers of features.
Features in one layer represent combinations of
simpler features in the layer below.
Can we train computers to extract many layers of
features by mimicking the way the brain does it?
Nobody knows how the brain does it, so this requires
both engineering insights and scientific discoveries.