Selection Algorithm
No synthetic	86.83 ± 2.44
Center matching	88.17 ± 2.35
Random	87.33 ± 2.03
K-means	89.00 ± 1.70
DS3	89.67 ± 1.45
Center sampling	88.75 ± 2.27
Covariance matching Ours	90.00 ± 1.86