I read in this question that the initial parameters are chosen randomly, however this can lead to choosing a set of parameters that lead us to be stuck in a local minima.
In this pennylane tutorial they state while solving the Minimum Vertex Cover problem:
"Notice that we set each of the initial parameters to 0.5. For demonstration purposes, we chose initial parameters that we know work fairly well, and don’t get stuck in any local minima."
Are there any ways to know which initial parameters work fairly well or is it a trial and error sort of thing? Especially since in more complex problem there may be many local minima.
