Question about changing dataset and some error

[raygoah]

Hi, I try to change dataset to cifar-100.
But I always encounter error message about :
Cholesky decomposition was not successful. The input might not be valid.

And I have tried the method in Question #11 , but it can't work.
I wonder if I need to change the RGB image (3 channel) into Gray image (1 channel) when I load the dataset ?
Or the dataset with 100 classes is not suitable to SpectralNet?
Could you help me figure out what I should tune the parameter , please ?

Thank you very much.

[Paramecium-0]

Hi, I've changed the dataset into a new one which is 5D , I ran the code and got the low spectralnet accuracy=0.209
I want to figure out if there is some way to make it better.
Thank you very much