As far as I know, one of the interesting resource to learn the basic concept of the decomposition methods is column generation book (GERAD 25th Anniversary Series), which has been mentioned in some useful community Q&A like this but unlikely, there are no more materials/sample codes to reproduce whose examples (maybe, I cannot find that).
I would like to know, are there any sample codes, specifically based on the Java or Python API of CPLEX/Gurobi/SCIP, to benchmark them?
