Possible mistake in Table metric direction: R-order should be ↓ instead of ↑

[CarlinJunHuang]

Hi authors, thanks for the great work!

I noticed a potential issue in the paper.

The column header at page 9 table 1 shows:

R-order ↑

However, based on the definition of R-order (as an error / ordering metric), it seems that lower values indicate better performance.

Could you please confirm whether this is a typo or if I misunderstood the metric definition?

Thanks!