From: Medical image diagnosis based on adaptive Hybrid Quantum CNN
# Pseudo-code for Hyperparameter Optimization using Genetic Algorithm |
# Step 1: Load DICOM medical images and labels |
X, y = load_medical_images_and_labels() |
# Step 2: Split the dataset into training and test sets |
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size = 0.2, random_state = 42) |
# Step 3: Define the evaluation function (fitness function) |
def evaluate_model(individual): |
num_circuits, circuit_depth, learning_rate = individual |
model = create_model_with_hyperparameters(num_circuits, circuit_depth, learning_rate) |
# Train the model on the training set |
model.fit(X_train, y_train, epochs = 5, batch_size = 32, verbose = 0) |
# Evaluate the model on the test set |
y_pred = model.predict_classes(X_test) |
accuracy = accuracy_score(y_test, y_pred) |
# Get the number of parameters in the model |
num_params = model.count_params() |
return accuracy, -num_params # Maximizing accuracy and minimizing number of parameters |
# Step 4: Initialize the Genetic Algorithm |
population = initialize_population() |
# Step 5: Main evolutionary loop |
for gen in range(NUM_GENERATIONS): |
offspring = create_offspring(population) |
fitness_values = evaluate_fitness(offspring) |
assign_fitness_values_to_individuals(offspring, fitness_values) |
population = select_next_generation(offspring) |
# Step 6: Get the best individual from the final population |
best_individual = select_best_individual(population) |
# Step 7: Print the best hyperparameters and the corresponding accuracy |
best_num_circuits, best_circuit_depth, best_learning_rate = best_individual |
best_accuracy, best_num_params = evaluate_model(best_individual) |