Reproducible Machine Learning-based Voice Pathology Detection: Introducing the Pitch Difference Feature

• URL: http://arxiv.org/abs/2410.10537v1
• Date: Mon, 14 Oct 2024 14:17:52 GMT
• Title: Reproducible Machine Learning-based Voice Pathology Detection: Introducing the Pitch Difference Feature
• Authors: Jan Vrba, Jakub Steinbach, Tomáš Jirsa, Laura Verde, Roberta De Fazio, Noriyasu Homma, Yuwen Zeng, Key Ichiji, Lukáš Hájek, Zuzana Sedláková, Jan Mareš,
• Abstract summary: We propose a robust set of features derived from a thorough research of contemporary practices in voice pathology detection. We combine this feature set, containing data from the publicly available Saarbr"ucken Voice Database (SVD), with preprocessing using the K-Means Synthetic Minority Over-Sampling Technique algorithm. Our approach has achieved the state-of-the-art performance, measured by unweighted average recall in voice pathology detection.
• Score: 1.1455937444848385
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this study, we propose a robust set of features derived from a thorough research of contemporary practices in voice pathology detection. The feature set is based on the combination of acoustic handcrafted features. Additionally, we introduce pitch difference as a novel feature. We combine this feature set, containing data from the publicly available Saarbr\"ucken Voice Database (SVD), with preprocessing using the K-Means Synthetic Minority Over-Sampling Technique algorithm to address class imbalance. Moreover, we applied multiple ML models as binary classifiers. We utilized support vector machine, k-nearest neighbors, naive Bayes, decision tree, random forest and AdaBoost classifiers. To determine the best classification approach, we performed grid search on feasible hyperparameters of respective classifiers and subsections of features. Our approach has achieved the state-of-the-art performance, measured by unweighted average recall in voice pathology detection on SVD database. We intentionally omit accuracy as it is highly biased metric in case of unbalanced data compared to aforementioned metrics. The results are further enhanced by eliminating the potential overestimation of the results with repeated stratified cross-validation. This advancement demonstrates significant potential for the clinical deployment of ML methods, offering a valuable tool for an objective examination of voice pathologies. To support our claims, we provide a publicly available GitHub repository with DOI 10.5281/zenodo.13771573. Finally, we provide REFORMS checklist.

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