sd-v1-4.ckpt vs sd-v1-4-full-ema.ckpt?

[JPhilipp]

What are the pros and cons of using sd-v1-4.ckpt vs sd-v1-4-full-ema.ckpt in the web UI? I saw some Reddit discussions on it, but would still like to understand better.

Also, what is the default in the web UI if one doesn't pick (I'm asking because I think the dropdown was empty -- i.e. falling back on a default -- before I once set it, and now it stays at the last setting)?

[cmp-nct]

The ema is needed if you want to continue training SD.

[scorbon]

ema moving average values don't do anything for you if you're generating images. They do prevent overfitting or something if you resume training the model. Not sure if they matter for dreambooth style training though.

[JPhilipp]

Thanks to both of you!

[Mapleshade20]

thanks too~ it helps a lot