ResearchBenchmarksFréchet Regression on SPD (Symmetric Positive Definite matrices)Fréchet Regression on SPD (Symmetric Positive Definite matrices)Follow0.0057Mean Prediction ErrorDeSI0.0053160.0079080.01050.013092Jun 5, 2026Evaluation resultsMethodMethodLinksMean Prediction ErrorDeSIn=1000n=10002026.060.0057DeSIn=500n=5002026.060.0067DeSIn=200n=2002026.060.0095IFRn=1000n=10002026.060.0101IFRn=500n=5002026.060.0127IFRn=200n=2002026.060.0128GFRn=200n=2002026.060.0153GFRn=500n=5002026.060.0153GFRn=1000n=10002026.060.0153