Table 3 Probability distributions for PPF estimation

Isoprobabilistic transformation

Standard normal

Step 1: Convert PV and HVAC data into standard normal data

MLE

Intrinsic dimensionality

Step 2: Calculate intrinsic dimensionality of normal data

SVD && PCA

Dimensionality reduction

Step 3: Reduce dimension of normal data to intrinsic dimensionality

SRSM

PPF estimation

Step 4: Estimate PPF using low dimensional data