Deep Q-network for mountain car problem in OpenAI gym

We have already discussed the environment while implementing Q-learning for the mountain car problem. Let's dive directly into implementing a deep Q-network to solve the mountain car problem. First, we will import the required libraries, using the following code:

#importing the dependenciesimport numpy as npimport tensorflow as tfimport gym

Let's discuss our class DQN, which holds the architecture of the deep Q-network:

  •  __init__(selflearning_rategamman_featuresn_actionsepsilonparameter_changing_pointermemory_size): Default constructor to assign the hyperparameters such as:
    • learning_rate
    • gamma, that is, the discount factor
    • n_feature: Number of features in state, that is, ...

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