I would like to use an unsupervised learning with technique called 'Diffusion map based manifold learning' in python. The original paper on diffusion map is here.

I have already checkout pydiffmap library, but is super slow with my use case and I am yet to see someone endorse the correctness of the implementation. I am looking for an alternate implementation in Python or R.

PS: It is not available in sklearn also as far as I know. List of other methods in sklearn is here


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