Teaching signals for recurrent networks
• We can specify targets in
several ways:
– Specify desired final
activities of all the units
– Specify desired activities
of all units for the last few
steps
• Good for learning attractors
• It is easy to add in extra
error derivatives as we
backpropagate.
– Specify the desired activity
of a subset of the units.
• The other units are “hidden”
w3 w4
w3 w4
w3 w4