DTU DeepLearning: exercise 6

Posted 2020-11-16 dulun

Wenjing Dai 3:41 PM

Hi everyone, I‘m a little confused about 6.1_exercise_4, the relationship between network selection (FFNN, CNN, RNN) and input types (image, margin, shape, texture). As my understanding, CNN is a type of FFNN, and image classification can be conducted by CNN. What about the other three features?  Does each feature has a special relation with a network structure? I just don‘t get the point. Thanks in advance for your help.

 

Today

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Christian Kolding 8:19 AM

The way I see it is that you use the CNN to preprocess the image and save the output from that as features. Same for the RNN but with other features. Finally, you collect all the features and feed them through one or more linear layers.

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Does batch_size have any affects in results quality? how to set the optimal batch size and number of iterations?

1. the batch size a : the number of training data feed into neural network once.

2. the iterations b : how many time we should feed into NN. 

a*b = the amount of training examples.