Why does the probability of the label of the same picture change?

[xiaobanni]

I found that every time I estimate the label probability of the same image, the result is different.

That is, for the same picture (for example, the picture you provided miku.jpg), I ran the program twice and the results were

Is this phenomenon normal? And why this phenomenon occurs? (maybe I was not careful enough and did not find the random function in the program)

Thanks for this project.