How many features i need select from a set ranked image feature space?

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THUNAKALA BALA KRISHNA
回答： yanqi liu 2021-12-2
I was trained a pretrained DCNN on my image dataset, extracted the features form the last fully coneected layer and I applied filter type feature slection method. Which produces the ranks and scores for the feature space.How many features i need to select to improve the performance of the model.

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yanqi liu
yanqi liu 2021-12-2
yes，sir，may be use activations to get the vector，such as
activations(net,data,layer,'OutputAs','rows');

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