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21. 資料收集/Programming/Keras/categorical_crossentropy.md Normal file
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- 僅適用於 one-hot 編碼。
- 如果輸出不是 one-hot，而是整數標籤，也就是直接輸出 0、1、2，而不是一個array（`[0, 0, 0, 1, 0]` 之類），那就需要 sparse_categorical_crossentropy。
- 範例：[[An example that use categorical_crossentropy and softmax]]