Hi all,
Sorry for cross posting!
I was running recurrent neural network. I used scan function. In most
of time it works well. But very occasionally Nan occurs (for example after
50 epochs). *But when I change from mode=FAST_RUN to mode=FAST_COMPILE, the
Nan disappeared!*
The cost function is like H + H^2 + ... + H^n,
If using mode=FAST_COMPILE, there is no error.
If using mode=FAST_RUN, I guess theano uses optimization to speed up
which introduce numerical problem at the same time.
Is there anyone know how to solve it?
Thank you very much!
Best wishes,
Qiuqiang
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