Getting negative archetypal coordinates

Question

Getting negative archetypal coordinates

schc54 opened this issue 3 years ago · 4 comments

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

Answer 1 · 2021-12-10T09:20:15.000Z

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

Answer 2 · 2021-12-10T11:52:47.000Z

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?

Answer 3 · 2021-12-10T12:02:13.000Z

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?

Answer 4 · 2021-12-10T12:05:17.000Z

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.