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sparse categorical crossentropy

Real Raccoon answered on December 20, 2020 Popularity 10/10 Helpfulness 5/10

answer sparse categorical crossentropy

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sparse categorical crossentropy

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If your Yi's are one-hot encoded, use categorical_crossentropy. Examples (for a 3-class classification): [1,0,0] , [0,1,0], [0,0,1]

But if your Yi's are integers, use sparse_categorical_crossentropy. Examples for above 3-class classification problem: [1] , [2], [3]

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Contributed on Nov 15 2021

Real Raccoon

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sparse categorical cross entropy python

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# example
model = Sequential([
    Dense(16, input_shape=(1,), activation='relu'), # the relu activation takes the max between 0 and x
    Dense(32, activation='relu'),
    Dense(2, activation='sigmoid'), # the sigmoid activation convert the number into number between 0 to 1
])

# the loss function is the sparse categorical crossentropy
model.compile(Adam(lr=0.001), loss='sparse_categorical_crossentropy', metrics=['accuracyt'])

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Tags: categorical cate

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Contributed on Dec 20 2020

Lazy Loris

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sparse categorical crossentropy

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