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Table 5 Standard deviations of the predictions measured for K-means and DENCAST and the result of the Wilcoxon signed-rank tests

From: DENCAST: distributed density-based clustering for multi-target regression

  30 days 60 days 90 days
DENCAST K-means DENCAST K-means DENCAST K-means
Single-target (ST)
 PVItaly 0.0419 0.0497 0.0388 0.0510 0.0389 0.0520
 PVNREL 0.0217 0.0379 0.0196 0.0385 0.0213 0.0386
 LightSource 0.0079 0.0055 0.0061 0.0068 0.0082 0.0090
 WindNREL 0.1063 0.1948 0.1086 0.2113 0.1081 0.2188
 Bike sharing 0.0399 0.0417 0.0398 0.0422 0.0391 0.0425
 Burlington 0.0655 0.0820 0.0636 0.0867 0.0665 0.0862
Average 0.0472 0.0686 0.0461 0.0727 0.0470 0.0745
Winner DENCAST DENCAST DENCAST
p-value 0.0374 0.0139 0.0139
Multi-target (MT)
 PVItaly 0.0360 0.0743 0.0363 0.0740 0.0335 0.0753
 PVNREL 0.0184 0.0416 0.0185 0.0380 0.0197 0.0353
 LightSource 0.0082 0.0080 0.0064 0.0070 0.0041 0.0025
 WindNREL 0.1139 0.1247 0.1137 0.0926 0.1119 0.0794
 Bike sharing 0.0402 0.0918 0.0433 0.0895 0.0459 0.0885
 Burlington 0.0678 0.1427 0.0726 0.1339 0.0673 0.1404
Average 0.0474 0.0805 0.0485 0.0725 0.0470 0.0702
Winner DENCAST DENCAST DENCAST
p-value 0.0232 0.0579 0.0865
  1. Statistically significant results are marked in italics