Hi justin,
Just for information, I also developped a plug-in related to yours:
https://github.com/wslihgt/IMMF0salienceIt only does the representation part, but does it with another algorithm (Source/Filter NMF, as you may know). Any comment welcome!
Best regards,
Jean-Louis
P.S.: since the new version of SV for macosx, in native 64bits, I m not quite sure the compiled version works anymore. yet another TODO...