adding reflow to example

[genji970]

This algorithm comes from "Improving the Training of Rectified Flows"

[amorehead]

Maybe #82 would be relevant?

[genji970]

Maybe #82 would be relevant?

hello.
As far as I know, meanflow uses average velocity and modified target from flow matching. But, rectified flow paper develop model by using previous samples( (1-t)x + t z -> (1-t)x + tz' ). But it looks relevant that both uses straight trajectory. please tell me if i'm wrong or there's additional contents.

[genji970]

Maybe #82 would be relevant?

if meanflow do smoothing for curved trajectory to be straight, and reflow uses previous samples to make curved trajectory to be straight, in this sense, it looks relevant.