neural nework validation accuracy calculation
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I am currently training a CNN to do modulation classification using NN toolbox. The validation accuracy reported by matlab through the training progress window is approximated 50% at the end of training. But when I tested the accuracy myself using the trained network with the validation data set, it's only about 20% to 25%. This is calculated as (num of correct classification / overall number of tests).
How does matlab calculate the validation accuracy? Where can I find more information? Thanks.
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