Explaining Machine Learning Models for Clinical Gait Analysis

نویسندگان

چکیده

Machine Learning (ML) is increasingly used to support decision-making in the healthcare sector. While ML approaches provide promising results with regard their classification performance, most share a central limitation, black-box character. This article investigates usefulness of Explainable Artificial Intelligence (XAI) methods increase transparency automated clinical gait based on time series. For this purpose, predictions state-of-the-art are explained XAI method called Layer-wise Relevance Propagation (LRP). Our main contribution an approach that explains class-specific characteristics learned by models trained for classification. We investigate several tasks and employ different methods, i.e., Convolutional Neural Network, Support Vector Machine, Multi-layer Perceptron. propose evaluate obtained explanations two complementary approaches: statistical analysis underlying data using Statistical Parametric Mapping qualitative evaluation experts. A dataset comprising ground reaction force measurements from 132 patients lower-body disorders 62 healthy controls utilized. experiments show LRP exhibit properties concerning inter-class discriminativity also line clinically relevant biomechanical characteristics.

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ژورنال

عنوان ژورنال: ACM transactions on computing for healthcare

سال: 2021

ISSN: ['2637-8051', '2691-1957']

DOI: https://doi.org/10.1145/3474121