add env_info
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codes/README.md
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## 写在前面
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本项目用于学习RL基础算法,尽量做到:
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* 注释详细
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* 结构清晰
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代码结构清晰,主要分为以下几个脚本:
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* ```env.py``` 用于构建强化学习环境,也可以重新normalize环境,比如给action加noise
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* ```model.py``` 强化学习算法的基本模型,比如神经网络,actor,critic等
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* ```memory.py``` 保存Replay Buffer,用于off-policy
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* ```agent.py``` RL核心算法,比如dqn等,主要包含update和select_action两个方法,
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* ```main.py``` 运行主函数
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* ```params.py``` 保存各种参数
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* ```plot.py``` 利用matplotlib或seaborn绘制rewards图,包括滑动平均的reward,结果保存在result文件夹中
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## 运行环境
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python 3.7.9
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pytorch 1.6.0
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tensorboard 2.3.0
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torchvision 0.7.0
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gym 0.17.3
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## 使用说明
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本仓库使用到的环境信息请跳转[环境说明](https://github.com/JohnJim0816/reinforcement-learning-tutorials/blob/master/env_info.md), 在各算法目录下也有相应说明(比如如何运行程序等)
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## 算法进度
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| 算法名称 | 相关论文材料 | 备注 | 进度 |
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| :----------------------: | :---------------------------------------------------------: | :--------------------------------: | :--: |
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| On-Policy First-Visit MC | | | OK |
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| Q-Learning | | | OK |
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| SARSA | | | OK |
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| DQN | [DQN-paper](https://www.cs.toronto.edu/~vmnih/docs/dqn.pdf) | | OK |
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| DQN-cnn | [DQN-paper](https://www.cs.toronto.edu/~vmnih/docs/dqn.pdf) | 与DQN相比使用了CNN而不是全链接网络 | OK |
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| DoubleDQN | | | OK |
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| Hierarchical DQN | [Hierarchical DQN](https://arxiv.org/abs/1604.06057) | | |
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| PolicyGradient | | | OK |
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| A2C | | | OK |
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| DDPG | [DDPG Paper](https://arxiv.org/abs/1509.02971) | | OK |
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| TD3 | [Twin Dueling DDPG Paper](https://arxiv.org/abs/1802.09477) | | |
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## Refs
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[RL-Adventure-2](https://github.com/higgsfield/RL-Adventure-2)
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[RL-Adventure](https://github.com/higgsfield/RL-Adventure)
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codes/env_info.md
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## 环境说明
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### [CartPole v0](https://github.com/openai/gym/wiki/CartPole-v0)
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<img src="assets/image-20200820174307301.png" alt="image-20200820174307301" style="zoom:50%;" />
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通过向左或向右推车能够实现平衡,所以动作空间由两个动作组成。每进行一个step就会给一个reward,如果无法保持平衡那么done等于true,本次episode失败。理想状态下,每个episode至少能进行200个step,也就是说每个episode的reward总和至少为200,step数目至少为200
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### [Pendulum-v0](https://github.com/openai/gym/wiki/Pendulum-v0)
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<img src="assets/image-20200820174814084.png" alt="image-20200820174814084" style="zoom:50%;" />
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钟摆以随机位置开始,目标是将其摆动,使其保持向上直立。动作空间是连续的,值的区间为[-2,2]。每个step给的reward最低为-16.27,最高为0。目前最好的成绩是100个episode的reward之和为-123.11 ± 6.86。
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