What is wd in camvid lesson 3?


learn = unet_learner(data, models.resnet34, metrics=metrics, wd=wd)

What is wd doing here ?

Weight decay. I remember it suggested that the explanation of it is in the following videos.
Or maybe it is pointless that I explain it here because you may know what it is.
It is just two lines of code, but it is very useful for training small data or to avoid overfitting.

Thankyou so much