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Transfer learning consists of taking features learned on one problem, and leveraging them on a new, similar problem. For instance, features from a model that has learned to identify racoons may be useful to kick-start a model meant to identify tanukis.
Layers & models have three weight attributes:
weightsis the list of all weights variables of the layer.
trainable_weightsis the list of those that are meant to be updated (via gradient descent) to minimize the loss during training.
non_trainable_weightsis the list of those that aren't meant to be trained. Typically they are updated by the model during the forward pass.
Transfer learning is how humans use knowledge of one thing to help understand something else, for example to humans a umbrella can be used to stop rain hitting you, but it also can be used to keep the sun of you. Getting a AI to put these connections together is one of the steps towards general Intelligence, and that's where transfer learning comes in.
Transfer learning looks at the weights, biases or artitecture of the deep learning model and saves them to them transfer to another model,
The biggest problem, thoug h, is that models like this one are performed only on a single task. Future tasks require a new set of data points as well as equal or more amount of resources.
Transfer learning is an approach in deep learning (and machine learning) where knowledge is transferred from one model to another.
Deep learning models require a LOT of data for solving a task effectively. However, it is not often the case that so much data is available. For example, a company may wish to build a very specific spam filter to its internal communication system but does not possess lots of labelled data.
What you can do is using a pre-trained image classifier on dog photos to predict cat photos.
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