What is wrong with back-propagation
{"Image DocumentName": "What is wrong with back-propagation?", "Image ImageDescription": "It requires labeled training data. Almost all data is unlabeled. The learning time does not scale well. It is very slow in networks with multiple hidden layers. It can get stuck in poor local optima. These are often quite good, but for deep nets they are far from optimal.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}