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Overfitting is when a model is too closely fit to the training data. This means that the model performs well on the training data, but does not generalize well to new data. This is often caused by the model being too complex, such as having too many parameters.

How does dropout prevent overfitting?

One way to prevent overfitting is to use dropout, which is a technique for randomly dropping out (setting to zero) a number of parameters in the model. This forces the model to learn with different parameters on each training instance, which prevents it from overfitting.  It is a technique for randomly dropping out (setting to zero) a number of parameters in the model. This forces the model to learn with different parameters on each training instance, which prevents it from overfitting.

Dropout can be used in a number of ways, such as on the input layer (to prevent overfitting to the training data) or on hidden layers (to prevent overfitting to the training data and to improve generalization).

What are some other ways to prevent overfitting?

Other ways to prevent overfitting include using less complex models, such as decision trees, and using regularization techniques, such as L1 or L2 regularization.

What are the disadvantages of the dropout?

The main disadvantage of dropout is that it can be computationally expensive, as the model has to be re-trained on each training instance.

How do I use dropout in my model?

There are a number of ways to use dropout in your model. The most common is to use it on the input layer, to prevent overfitting of the training data. You can also use dropout on hidden layers, to prevent overfitting of the training data and to improve generalization.

Resource:

Dropout: A Simple Way to Prevent Neural Networks from Overfitting


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