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Q-Learning

  • Successfully implemented Q-Learning for a simple robot navigation problem of a robot moving on a 5 x 5 grid with one arbitrary goal (reward of +10) and three arbitrary obstacles (reward of -10)
  • Algorithm used is:
    1. Initialize q-table with all zeroes
    2. Loop
    • Pick a random start state, action(s,a) transition
    • make transistion from(s,a) -> sโ€™
    • receive reward
    • Update Q(s,a) <- R(s,a) + gamma*(max(Q(sโ€™,for all actions possible from next state)))
  • Run from main.m

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