AutoQML: Automatic Generation and Training of Robust Quantum-Inspired Classifiers by Using Genetic Algorithms on Grayscale Images
This work addresses the challenge of creating robust and generalizable quantum-inspired classifiers for image classification, though it appears incremental as it builds on existing genetic algorithm and quantum-inspired techniques.
The authors tackled the problem of automatically generating and training quantum-inspired classifiers for grayscale images by using multiobjective genetic algorithms, resulting in a system that optimizes for small circuit size and high accuracy on unseen data, with comparisons to classical methods to isolate the quantum circuit's contribution.
We propose a new hybrid system for automatically generating and training quantum-inspired classifiers on grayscale images by using multiobjective genetic algorithms. We define a dynamic fitness function to obtain the smallest possible circuit and highest accuracy on unseen data, ensuring that the proposed technique is generalizable and robust. We minimize the complexity of the generated circuits in terms of the number of entanglement gates by penalizing their appearance. We reduce the size of the images with two dimensionality reduction approaches: principal component analysis (PCA), which is encoded in the individual for optimization purpose, and a small convolutional autoencoder (CAE). These two methods are compared with one another and with a classical nonlinear approach to understand their behaviors and to ensure that the classification ability is due to the quantum circuit and not the preprocessing technique used for dimensionality reduction.