I had to write a neural network, which could classify hand-written numbers from the MNIST data set. It seems to always predict the same class, however. I found this question, which describes a very similar case. However, the debugging methods, described in...

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我有一个玩具时间序列数据框，格式如下： >>> df dtime dev sw1 sw2 0 2020-01-01 00:00:00 A1 5.496714 5.593792 1 2020-01-01 00:15:00 A1 5.417291 6.385936 2 2020-01-01 00:30:00 A1 6.758800 6.056747 3 2020-01-01 00:45:00 A1 8.18...

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