Imagine recognizing complicated images without teaching a neural network every visual pattern from scratch. Transfer learning starts with a pretrained network, then uses new data to adjust some parameters, usually the last layer. section 10.5
A practical transfer-learning workflow is:
- Choose a pretrained convolutional neural network such as InceptionV3, ImageNet, ResNet, or VGG. section 10.5
- Provide data for the new image task and tweak selected parameters, commonly those in the final layer. section 10.5
- Prefer the approach when training from scratch would be difficult, since it can work well at low computational cost. section 10.5
A new image classifier
Instead of training a complete neural network from scratch for a complicated image dataset, begin with a pretrained network and adapt its final layer to the new data. section 10.5










