Table 3 Quantization errors from applying the three SOM algorithms, each with a 5 × 5 output space (25 neurons), separately to each of the four residential sensor readings.
Outdoor temperature | Indoor temperature | Outdoor PM | Indoor PM | |
|---|---|---|---|---|
Standard SOM with Euclidean distance measurement | 1.675 | 2.476 | 0.924 | 0.676 |
SOM with DTW distance measurement | 1.706 | 2.404 | 0.909 | 0.717 |
DTW-SOM | 1.189 | 1.800 | 0.907 | 0.538 |