Subsequent to {TAIL ~ the weight propagation}, {HEAD ~ the weights} can be normalized, thereby preventing entrapment in a local optimum 
Subsequent to
Subsequent to { TAIL ~ the weight propagation } , { HEAD ~ the weights } can be normalized , thereby preventing entrapment in a local optimum
REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH