01_taxi/notebooks/04_homework.ipynb

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   "source": [
    "# 04 Homework 🏋️🏋️🏋️"
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    "#### 👉A course without homework is not a course!\n",
    "\n",
    "#### 👉Spend some time thinking and trying to implement the challenges I propose here.\n",
    "\n",
    "#### 👉They are not so easy, so if you get stuck drop me an email at `plabartabajo@gmail.com`"
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    "-----"
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    "## 1. Can you update the function `train` in a way that the input `epsilon` can also be a callable function?\n",
    "\n",
    "An `epsilon` value that decays after each episode works better than a fixed `epsilon` for most RL problems.\n",
    "\n",
    "This is hard exercise, but I want you to give it a try.\n",
    "\n",
    "If you do not manage it, do not worry. We are going to implement this in an upcoming lesson."
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    "-----"
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    "## 2. Can you parallelize the function `train_many_runs` using Python's `multiprocessing` module?\n",
    "\n",
    "I do not like to wait and stare at each progress bar, while I think that each run in `train_many_runs` could execute\n",
    "in parallel.\n",
    "\n",
    "Create a new function called `train_many_runs_in_parallel` that outputs the same results as `train_many_runs` but that executes in a fraction of time."
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