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.

From: Using dynamic time warping self-organizing maps to characterize diurnal patterns in environmental exposures

 

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