From: Is bigger always better? A controversial journey to the center of machine learning design, with uses and misuses of big data for predicting water meter failures
Id
Dataset
# of readings
µ
\(\sigma\)
1
Total with 1-2-2 Factor
11,856,582
5307
86,450
2
Total with X-Factor
1,973,493
3674
17,796
3
Sampled for training
135,018
3647
11,852