Interactúa con el entorno Frozen Lake

Ahora vas a navegar por el entorno Frozen Lake, un mundo en cuadrícula donde las acciones mueven a un agente en direcciones específicas. Tu tarea es observar con atención el entorno y definir manualmente una lista de actions que lleve al agente desde el inicio (arriba a la izquierda) hasta el objetivo (abajo a la derecha) sin caer en ningún agujero. En el entorno Frozen Lake, las acciones suelen representarse así:

0: izquierda
1: abajo
2: derecha
3: arriba

Después de ejecutar tu código, asegúrate de navegar por tus gráficas usando los botones "Previous Plot" y "Next Plot". Esto te ayudará a entender la secuencia de acciones y sus resultados.

gym y plt se han importado junto con la función render() y la variable env.

Este ejercicio forma parte del curso

Reinforcement Learning con Gymnasium en Python

Instrucciones del ejercicio

Observa la posición del agente a la derecha y define una lista de actions para guiar al agente por el lago hasta el objetivo.
Ejecuta cada acción de la lista a través del bucle for.
Representa el entorno después de cada acción para observar la trayectoria del agente.

Ejercicio interactivo práctico

Prueba este ejercicio y completa el código de muestra.

# Define the sequence of actions
actions = [____]

for action in actions:
  # Execute each action
  state, reward, terminated, _, _ = ____
  # Render the environment
  ____
  if terminated:
  	print("You reached the goal!")

Editar y ejecutar código

Este ejercicio forma parte del curso

Reinforcement Learning con Gymnasium en Python

AvanzadoNivel de habilidad

4.8+

Comienza el curso gratis

Dive into the exciting world of Reinforcement Learning (RL) by exploring its foundational concepts, roles, and applications. Navigate through the RL framework, uncovering the agent-environment interaction. You'll also learn how to use the Gymnasium library to create environments, visualize states, and perform actions, thus gaining a practical foundation in RL concepts and applications.

Exercise 1: Fundamentos del aprendizaje por refuerzo Exercise 2: ¿Qué es Reinforcement Learning?Exercise 3: RL vs. otros subdominios de ML Exercise 4: Escenarios para aplicar RL Exercise 5: Navegando por el marco de RL Exercise 6: Bucle de interacción de RL Exercise 7: Tareas de RL episódicas y continuas Exercise 8: Calcular retornos descontados para estrategias del agente Exercise 9: Interactuar con entornos de Gymnasium Exercise 10: Configurar un entorno de Mountain Car Exercise 11: Visualización del entorno Mountain Car Exercise 12: Interactúa con el entorno Frozen Lake

Ejercicio actual

Delve deeper into the world of RL focusing on model-based learning. Unravel the complexities of Markov Decision Processes (MDPs), understanding their essential components. Enhance your skill set by learning about policies and value functions. Gain expertise in policy optimization with policy iteration and value Iteration techniques.

Exercise 1: Markov Decision Processes Exercise 2: Custom Frozen Lake MDP components Exercise 3: Exploring state and action spaces Exercise 4: Transition probabilities and rewards Exercise 5: Policies and state-value functions Exercise 6: Defining a deterministic policy Exercise 7: Computing state-values for a policy Exercise 8: Comparing policies Exercise 9: Action-value functions Exercise 10: Computing Q-values Exercise 11: Improving a policy Exercise 12: Policy iteration and value iteration Exercise 13: Applying policy iteration for optimal policy Exercise 14: Implementing value iteration

Embark on a journey through the dynamic realm of Model-Free Learning in RL. Get introduced to to the foundational Monte Carlo methods, and apply first-visit and every-visit Monte Carlo prediction algorithms. Transition into the world of Temporal Difference Learning, exploring the SARSA algorithm. Finally, dive into the depths of Q-Learning, and analyze its convergence in challenging environments.

Exercise 1: Monte Carlo methods Exercise 2: Episode generation for Monte Carlo methods Exercise 3: Implementing first-visit Monte Carlo Exercise 4: Implementing every-visit Monte Carlo Exercise 5: Temporal difference learning Exercise 6: Implementing the SARSA update rule Exercise 7: Solving 8x8 Frozen Lake with SARSA Exercise 8: Q-learning Exercise 9: Implementing Q-learning update rule Exercise 10: Solving 8x8 Frozen Lake with Q-learning Exercise 11: Evaluating policy on a slippery Frozen Lake

Dive into advanced strategies in Model-Free RL, focusing on enhancing decision-making algorithms. Learn about Expected SARSA for more accurate policy updates and Double Q-learning to mitigate overestimation bias. Explore the Exploration-Exploitation Tradeoff, mastering epsilon-greedy and epsilon-decay strategies for optimal action selection. Tackle the Multi-Armed Bandit Problem, applying strategies to solve decision-making challenges under uncertainty.

Exercise 1: Expected SARSA Exercise 2: Expected SARSA update rule Exercise 3: Applying Expected SARSA Exercise 4: Double Q-learning Exercise 5: Implementing double Q-learning update rule Exercise 6: Applying double Q-learning Exercise 7: Balancing exploration and exploitation Exercise 8: Defining epsilon-greedy function Exercise 9: Solving CliffWalking with epsilon greedy strategy Exercise 10: Solving CliffWalking with decayed epsilon-greedy strategy Exercise 11: Multi-armed bandits Exercise 12: Creating a multi-armed bandit Exercise 13: Solving a multi-armed bandit Exercise 14: Assessing convergence in a multi-armed bandit Exercise 15: Congratulations!