Table 2.
Model size, Training time and Inference speed per ML model family and input set.
| Input features (num. features) | Model size (MB) | Training time (s) | Inference speed (million pred./s) | ||||
|---|---|---|---|---|---|---|---|
| Mean | Max | Mean | Max | Mean | Min | ||
| Linear regression | Input_orig. (4) | 0.000657 | 0.000658 | 0.05 | 0.180189 | 6.64 | 6.227645 |
| Input_hour/day (24) | 0.000810 | 0.000811 | 1.64 | 3.120221 | 5.76 | 5.279960 | |
| Input_mix (44) | 0.000966 | 0.000966 | 3.25 | 5.379071 | 5.12 | 4.735821 | |
| CART | Input_orig. (4) | 17.22 | 18.894751 | 0.53 | 0.549016 | 4.45 | 2.572063 |
| Input_hour/day (24) | 16.63 | 18.920263 | 2.85 | 3.013313 | 4.08 | 2.377553 | |
| Input_mix (44) | 16.34 | 18.866186 | 5.26 | 5.626011 | 3.76 | 2.538655 | |
| Random-Forest | input_orig. (4) | 355.28 | 2047.384612 | 4.39 | 11.311513 | 0.65 | 0.284171 |
| Input_hour/day (24) | 354.10 | 2048.579925 | 24.76 | 61.137886 | 0.68 | 0.245368 | |
| Input_mix (44) | 347.99 | 2043.802215 | 45.83 | 113.191902 | 0.68 | 0.294159 | |