AttributeError: 'ProgbarLogger' object has no attribute 'log_values'

最新推荐文章于 2022-03-26 14:55:58 发布

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本文详细解析了在使用Keras进行模型训练时遇到的AttributeError异常：'ProgbarLogger'对象没有属性'log_values'。当使用validation_split参数且训练集最终变为0时，这一错误尤为常见。文章深入探讨了这一问题的原因，并提供了可能的解决方案。

异常:

AttributeError: 'ProgbarLogger' object has no attribute 'log_values'

原因:

For method fit() Keras should throw an exception when using validation_split and training set is ended up to be 0... Example: your last batch in epoch contains 1 sample and validation_split = 0.3 => training size = 0...
When training set size is 0 you will see this exception...
If you look at callbacks.py in keras, class ProgbarLogger, log_values member is created ONLY when batch starts... So if you don't have data in the batch it gets to on_epoch_end with log_values undefined...