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```python
import gym
from gym import spaces
import your_language_model # Import your language model implementation
import similarity_metric # Import a similarity metric (e.g., BLEU or ROUGE)
class CustomEnv(gym.Env):
def __init__(self, questions, correct_responses):
super(CustomEnv, self).__init__()
# Store your data
self.questions = questions
self.correct_responses = correct_responses
self.num_questions = len(questions)
# Define your state space (question, current_response)
self.state_space = spaces.Tuple((spaces.Discrete(self.num_questions), spaces.Discrete(1)))
# Define your action space (e.g., generate a new response)
self.action_space = spaces.Discrete(1) # You can customize this based on your actions
def step(self, action):
# Get the current state (question, current_response)
question_idx, current_response_idx = self.state
# Generate a new response using your language model based on the current question
new_response = your_language_model.generate_response(self.questions[question_idx])
# Calculate the reward based on a similarity metric between new_response and correct_response
similarity_score = similarity_metric.calculate_similarity(new_response, self.correct_responses[question_idx])
reward = similarity_score
# Update the state with the new response
self.state = (question_idx, new_response)
# Determine if the episode is done (e.g., after a fixed number of steps)
done = (current_response_idx == max_steps)
return self.state, reward, done, {}
def reset(self):
# Reset the environment to a new episode (e.g., choose a new question)
self.state = (random.randint(0, self.num_questions - 1), 0)
def render(self):
# Optional: Implement a method to visualize the environment
# Initialize the environment with your data
questions = [...] # List of questions
correct_responses = [...] # List of correct responses corresponding to questions
env = CustomEnv(questions, correct_responses)
# Training loop for your RL agent
for episode in range(num_episodes):
state = env.reset()
done = False
total_reward = 0
while not done:
action = agent.select_action(state)
next_state, reward, done, _ = env.step(action)
total_reward += reward
# Agent updates its policy based on the reward (RL algorithm-specific)
# Evaluate the trained agent and your language model
```
Please note that this code is a simplified example and should be adapted to your specific language model, RL algorithm, and reward function. Additionally, you may need to import and implement your language model and similarity metric according to your actual implementation.
This code provides a basic structure for integrating RL with your language model. You will need to choose or implement an RL algorithm and adjust the code accordingly for your use case.
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