CNN training accuracy drop suddenly from 94% into 48%












0















I am working in audio classification using CNN. The raining accuracy goes normally in an increasing manner till it reaches (94.9%) in epoch (61), then all the sudden in epoch (62) the training accuracy dropped to (48.37%). I don't know what is the problem that causes this.



37792/37792 [===========] - 1056s 28ms/step - loss: 0.1544 - acc: 0.9490
Epoch 61/100
37792/37792 [==========] - 1056s 28ms/step - loss: 8.3078 - acc: 0.4837
Epoch 62/100
.......................................................









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  • 2





    This could be a data related issue, check if the training dataset has proper labels, besides how does it behave after 62nd epoch?

    – Oswald
    Jan 2 at 3:14











  • It behaves bad after 62 epoch.

    – m.aldarwbi
    Jan 5 at 2:33
















0















I am working in audio classification using CNN. The raining accuracy goes normally in an increasing manner till it reaches (94.9%) in epoch (61), then all the sudden in epoch (62) the training accuracy dropped to (48.37%). I don't know what is the problem that causes this.



37792/37792 [===========] - 1056s 28ms/step - loss: 0.1544 - acc: 0.9490
Epoch 61/100
37792/37792 [==========] - 1056s 28ms/step - loss: 8.3078 - acc: 0.4837
Epoch 62/100
.......................................................









share|improve this question




















  • 2





    This could be a data related issue, check if the training dataset has proper labels, besides how does it behave after 62nd epoch?

    – Oswald
    Jan 2 at 3:14











  • It behaves bad after 62 epoch.

    – m.aldarwbi
    Jan 5 at 2:33














0












0








0








I am working in audio classification using CNN. The raining accuracy goes normally in an increasing manner till it reaches (94.9%) in epoch (61), then all the sudden in epoch (62) the training accuracy dropped to (48.37%). I don't know what is the problem that causes this.



37792/37792 [===========] - 1056s 28ms/step - loss: 0.1544 - acc: 0.9490
Epoch 61/100
37792/37792 [==========] - 1056s 28ms/step - loss: 8.3078 - acc: 0.4837
Epoch 62/100
.......................................................









share|improve this question
















I am working in audio classification using CNN. The raining accuracy goes normally in an increasing manner till it reaches (94.9%) in epoch (61), then all the sudden in epoch (62) the training accuracy dropped to (48.37%). I don't know what is the problem that causes this.



37792/37792 [===========] - 1056s 28ms/step - loss: 0.1544 - acc: 0.9490
Epoch 61/100
37792/37792 [==========] - 1056s 28ms/step - loss: 8.3078 - acc: 0.4837
Epoch 62/100
.......................................................






tensorflow keras deep-learning conv-neural-network






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edited Jan 2 at 6:27









NIMISHAN

95011223




95011223










asked Jan 2 at 2:50









m.aldarwbim.aldarwbi

162




162








  • 2





    This could be a data related issue, check if the training dataset has proper labels, besides how does it behave after 62nd epoch?

    – Oswald
    Jan 2 at 3:14











  • It behaves bad after 62 epoch.

    – m.aldarwbi
    Jan 5 at 2:33














  • 2





    This could be a data related issue, check if the training dataset has proper labels, besides how does it behave after 62nd epoch?

    – Oswald
    Jan 2 at 3:14











  • It behaves bad after 62 epoch.

    – m.aldarwbi
    Jan 5 at 2:33








2




2





This could be a data related issue, check if the training dataset has proper labels, besides how does it behave after 62nd epoch?

– Oswald
Jan 2 at 3:14





This could be a data related issue, check if the training dataset has proper labels, besides how does it behave after 62nd epoch?

– Oswald
Jan 2 at 3:14













It behaves bad after 62 epoch.

– m.aldarwbi
Jan 5 at 2:33





It behaves bad after 62 epoch.

– m.aldarwbi
Jan 5 at 2:33












1 Answer
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I think that I've just solved the problem by customising the default optimiser.lr = 0.0001

beta_1 = 0.9
beta_2 = 0.999
opti = keras.optimizers.adam(lr=lr, beta_1=beta_1, beta_2=beta_2, epsilon=None, clipnorm=1.)






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    1 Answer
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    active

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    1














    I think that I've just solved the problem by customising the default optimiser.lr = 0.0001

    beta_1 = 0.9
    beta_2 = 0.999
    opti = keras.optimizers.adam(lr=lr, beta_1=beta_1, beta_2=beta_2, epsilon=None, clipnorm=1.)






    share|improve this answer




























      1














      I think that I've just solved the problem by customising the default optimiser.lr = 0.0001

      beta_1 = 0.9
      beta_2 = 0.999
      opti = keras.optimizers.adam(lr=lr, beta_1=beta_1, beta_2=beta_2, epsilon=None, clipnorm=1.)






      share|improve this answer


























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        1








        1







        I think that I've just solved the problem by customising the default optimiser.lr = 0.0001

        beta_1 = 0.9
        beta_2 = 0.999
        opti = keras.optimizers.adam(lr=lr, beta_1=beta_1, beta_2=beta_2, epsilon=None, clipnorm=1.)






        share|improve this answer













        I think that I've just solved the problem by customising the default optimiser.lr = 0.0001

        beta_1 = 0.9
        beta_2 = 0.999
        opti = keras.optimizers.adam(lr=lr, beta_1=beta_1, beta_2=beta_2, epsilon=None, clipnorm=1.)







        share|improve this answer












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        share|improve this answer










        answered Jan 10 at 1:27









        m.aldarwbim.aldarwbi

        162




        162
































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