A model reads numbers only. The NorthPeak machine type is a word, pump or chiller, and the sensor columns run on very different ranges: temperature around 46.2 with a spread of 14.7, vibration around 4.2 with a spread of 1.3. Both facts must be handled before some models can learn. This lesson covers one-hot encoding for the text category and standardisation for the numbers, with the exact output of both on the NorthPeak data.
Preview — the rest of the lesson is for enrolled readers.
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