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Safe and Robust Reinforcement-Learning: Principles and Practice


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Safe and robust reinforcement learning involves addressing challenges related to safety, robustness, and ethical considerations in RL applications.
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  • The paper explores the dimensions of safe and robust RL, covering algorithmic approaches, environmental factors, and human involvement.
  • It categorizes research works into different algorithmic approaches enhancing safety and robustness.
  • Techniques like uncertainty estimation, optimization methodologies, exploration-exploitation trade-offs, and adversarial training are discussed.
  • The paper introduces a practical checklist for designing safe and robust RL systems, covering aspects of algorithm design, training environment considerations, and ethical guidelines.
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"Robust RL aims to learn a robust optimal policy that accounts for model uncertainty of the transition probability to systematically mitigate the sensitivity of the optimal policy in perturbed environments" - [4] "Safe RL is the process of learning policies that maximize the expectation of the return in problems in which it is important to ensure reasonable system performance and/or respect safety constraints during the learning and/or deployment processes. Also, the system must have the right objectives (the reward function aligned with the objective of the task) and a mechanism for humans to intervene." - [11]
Citaten
"Safe RL has a mechanism for a human to interfere the agent effectively." - Dylan Hadfield-Menell et al. "Robust RL aims to learn a robust optimal policy that accounts for model uncertainty of the transition probability to systematically mitigate the sensitivity of the optimal policy in perturbed environments." - Survey Paper

Belangrijkste Inzichten Gedestilleerd Uit

by Taku Yamagat... om arxiv.org 03-28-2024

https://arxiv.org/pdf/2403.18539.pdf
Safe and Robust Reinforcement-Learning

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How can the incorporation of human knowledge enhance the safety and robustness of RL systems?

Incorporating human knowledge into reinforcement learning (RL) systems can significantly enhance their safety and robustness. Human knowledge can provide valuable insights, guidance, and corrections that the RL agent may not be able to acquire on its own. Here are some ways in which human knowledge can contribute to the safety and robustness of RL systems: Reward Function Alignment: Humans can help in aligning the reward function with the true objectives of the task, reducing the risk of reward misspecification. By providing feedback on the reward function, humans can ensure that the agent's learning process is directed towards the desired outcomes. Ethical Considerations: Humans can contribute to identifying and addressing ethical considerations in RL systems. They can provide insights into fairness, transparency, and privacy concerns, ensuring that the RL system operates ethically and responsibly. Constraint Specification: Humans can help in specifying constraints that the RL agent needs to adhere to. By providing clear guidelines on safety constraints, humans can guide the learning process and prevent the agent from taking risky or harmful actions. Data Annotation and Demonstration: Human demonstrations and annotations on data can provide valuable training examples for the RL agent. Expert demonstrations can help the agent learn optimal behavior, while annotations from non-experts can offer diverse perspectives and insights. Human-in-the-Loop Approaches: By incorporating human feedback mechanisms, RL systems can benefit from real-time corrections and interventions. Humans can intervene when the agent's actions pose risks or violate constraints, ensuring safe and responsible behavior. Overall, human knowledge adds a layer of oversight, guidance, and expertise that can enhance the safety and robustness of RL systems, especially in complex and uncertain environments.

How can the incorporation of human knowledge enhance the safety and robustness of RL systems?

Incorporating human knowledge into reinforcement learning (RL) systems can significantly enhance their safety and robustness. Human knowledge can provide valuable insights, guidance, and corrections that the RL agent may not be able to acquire on its own. Here are some ways in which human knowledge can contribute to the safety and robustness of RL systems: Reward Function Alignment: Humans can help in aligning the reward function with the true objectives of the task, reducing the risk of reward misspecification. By providing feedback on the reward function, humans can ensure that the agent's learning process is directed towards the desired outcomes. Ethical Considerations: Humans can contribute to identifying and addressing ethical considerations in RL systems. They can provide insights into fairness, transparency, and privacy concerns, ensuring that the RL system operates ethically and responsibly. Constraint Specification: Humans can help in specifying constraints that the RL agent needs to adhere to. By providing clear guidelines on safety constraints, humans can guide the learning process and prevent the agent from taking risky or harmful actions. Data Annotation and Demonstration: Human demonstrations and annotations on data can provide valuable training examples for the RL agent. Expert demonstrations can help the agent learn optimal behavior, while annotations from non-experts can offer diverse perspectives and insights. Human-in-the-Loop Approaches: By incorporating human feedback mechanisms, RL systems can benefit from real-time corrections and interventions. Humans can intervene when the agent's actions pose risks or violate constraints, ensuring safe and responsible behavior. Overall, human knowledge adds a layer of oversight, guidance, and expertise that can enhance the safety and robustness of RL systems, especially in complex and uncertain environments.

How can the incorporation of human knowledge enhance the safety and robustness of RL systems?

Incorporating human knowledge into reinforcement learning (RL) systems can significantly enhance their safety and robustness. Human knowledge can provide valuable insights, guidance, and corrections that the RL agent may not be able to acquire on its own. Here are some ways in which human knowledge can contribute to the safety and robustness of RL systems: Reward Function Alignment: Humans can help in aligning the reward function with the true objectives of the task, reducing the risk of reward misspecification. By providing feedback on the reward function, humans can ensure that the agent's learning process is directed towards the desired outcomes. Ethical Considerations: Humans can contribute to identifying and addressing ethical considerations in RL systems. They can provide insights into fairness, transparency, and privacy concerns, ensuring that the RL system operates ethically and responsibly. Constraint Specification: Humans can help in specifying constraints that the RL agent needs to adhere to. By providing clear guidelines on safety constraints, humans can guide the learning process and prevent the agent from taking risky or harmful actions. Data Annotation and Demonstration: Human demonstrations and annotations on data can provide valuable training examples for the RL agent. Expert demonstrations can help the agent learn optimal behavior, while annotations from non-experts can offer diverse perspectives and insights. Human-in-the-Loop Approaches: By incorporating human feedback mechanisms, RL systems can benefit from real-time corrections and interventions. Humans can intervene when the agent's actions pose risks or violate constraints, ensuring safe and responsible behavior. Overall, human knowledge adds a layer of oversight, guidance, and expertise that can enhance the safety and robustness of RL systems, especially in complex and uncertain environments.
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