how to generate a neural net weight-matrix?
as I am currently trying to get more insight into what neural nets are doing, I wanted to know, whether there is a way of exporting the weight-matrices of a neural net so that you can visualize it (e.g. heat map). By then changing the training set a couple of times, you may see differences in the "heat-map-weight-matrix" and can conclude which attributes are the ones that matter.
I know that there are real scientists out there, searching for answers to the black-box-problem of neural nets. But my curiosity just drives me towards this way and I would be glad to try this out :-).
Thank you for your answers