What is the purpose of zero-padding in a CNN?Question 11Answera.To prevent the reduction of spatial dimensionsb. To regularize the network and prevent overfittingc. To adjust the learning rate during trainingd.None
Question
What is the purpose of zero-padding in a CNN?Question 11Answera.To prevent the reduction of spatial dimensionsb. To regularize the network and prevent overfittingc. To adjust the learning rate during trainingd.None
Solution
The purpose of zero-padding in a Convolutional Neural Network (CNN) is to prevent the reduction of spatial dimensions when convolutions are applied.
In a CNN, each layer applies a filter or kernel to the input data, which can reduce the spatial dimensions (height and width) of the input. This can lead to loss of information, especially at the edges of the input where the filter may not fully overlap.
Zero-padding is a technique where we add zeros around the edge of the input, effectively increasing its size. This allows the filter to overlap fully with the edges of the input, preserving the spatial dimensions and preventing loss of information.
So, the correct answer is a. To prevent the reduction of spatial dimensions.
Please note that zero-padding does not regularize the network to prevent overfitting (option b), nor does it adjust the learning rate during training (option c).
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