QUANT-PHAIMay 7, 2025

Quantum-Inspired Optimization Process for Data Imputation

arXiv:2505.04841v2h-index: 5
Originality Incremental advance
AI Analysis

It addresses data quality issues in domains like healthcare and AI pipelines, but is incremental as it builds on existing quantum-inspired and classical optimization techniques.

This study tackled the problem of data imputation for datasets with missing values by introducing a quantum-inspired framework, achieving an average reduction of over 85% in Wasserstein distance and improved statistical fidelity compared to classical methods.

Data imputation is a critical step in data pre-processing, particularly for datasets with missing or unreliable values. This study introduces a novel quantum-inspired imputation framework evaluated on the UCI Diabetes dataset, which contains biologically implausible missing values across several clinical features. The method integrates Principal Component Analysis (PCA) with quantum-assisted rotations, optimized through gradient-free classical optimizers -COBYLA, Simulated Annealing, and Differential Evolution to reconstruct missing values while preserving statistical fidelity. Reconstructed values are constrained within +/-2 standard deviations of original feature distributions, avoiding unrealistic clustering around central tendencies. This approach achieves a substantial and statistically significant improvement, including an average reduction of over 85% in Wasserstein distance and Kolmogorov-Smirnov test p-values between 0.18 and 0.22, compared to p-values > 0.99 in classical methods such as Mean, KNN, and MICE. The method also eliminates zero-value artifacts and enhances the realism and variability of imputed data. By combining quantum-inspired transformations with a scalable classical framework, this methodology provides a robust solution for imputation tasks in domains such as healthcare and AI pipelines, where data quality and integrity are crucial.

Foundations

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