difference between obj_embedding_head head and intermediate?

[JLC7]

What is the difference for the two options for the swav backbone? What is the use case for choosing obj_embedding_head = "head" or "intermediate"?

[amirbar]

We tried two different settings for using the SwAV embedding. One is the representation after the projection layer (head), and one is an intermediate ResNet block output. We found that the intermediate block worked better (although we did not report this in the paper).