What are the advantages of using DDPG over A* in indoor robot navigation

I am new to path planning field . I am trying to use PRM + DDPG for indoor navigation . Could some one tell me the advantage of using PRM + DDPG than PRM + A* for it.

Edit : Am I wrong in my thinking like the option will be PRM + DDPG or A* + DDPG .

submitted by /u/ajithvallabai
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