mi project progress 01 12-2014
TRANSCRIPT
PCA for all 3600 microstructures
• Dimensionality for each microstructure reduced from 231525 (21x21x21x25) to 25
• First 25 principal components (significant) chosen for linkages
Property –
• Calculated in sample frame by solving equation
Regression to get structure-property linkages• Polynomial regression with LOOCV
• Number of PC and power of polynomial (n) can be varied to arrive at best linkage without overfit
All microstructures (R2 = 0.71) ….Number of PC =
25 , Power of polynomial (n) = 2 (for first 5 PC’s)