Getting negative archetypal coordinates

[schc54]

I thought the archetypal coordinates should be all non-negative and they add up to 1. Any ideas of getting the negative coordinates?

[haofeixu]

Hi @schc54 , can you please give more details? The output ought to be non-negative.

[schc54]

I tried to run the code with a sequence of images but got some negative values in the output after 50000 iterations. Do you think I should try with more iterations?

[haofeixu]

Which dataset are you using? In the datasets we used in our paper, we didn't observe negative output. Could you attach the training log here?

[schc54]

I am actually using a movie dataset consists of black and white images. Let me re-run it again and attach the training log here.