Difference between Raney decomposition and compact decomposition

I am Dasari Kiran, Research Scholar, INDIA. I using POLSARpro for SAR processing.
I have few quires exclusively on the polsarpro tool.

Q1. Information regarding Raney decomposition. What is Raney decomposition and how it is performed and its difference with m delta nad m-chi decomposition?

Q2. Documentation related to SVM classifer and its kernel used.
Q3. Documentation/Information regarding Compact decomposition.Does the compact decomposition was based on cloude method…?.
I am unable to find the documentation neither in the website nor in the lecture notes.