You can read the comments (and the linked papers) first. This is an advanced algorithm that could take days (or weeks) to fully internalize the details. One can

You can read the comments (and the linked papers) first. This is an advanced algorithm that could take days (or weeks) to fully internalize the details. One can't expect to just read the code and build a mental model of the program in one parse, no matter how expressive the variable names are.