Interpretable Machine Learning for Survival Analysis

• URL: http://arxiv.org/abs/2403.10250v1
• Date: Fri, 15 Mar 2024 12:38:00 GMT
• Title: Interpretable Machine Learning for Survival Analysis
• Authors: Sophie Hanna Langbein, Mateusz Krzyziński, Mikołaj Spytek, Hubert Baniecki, Przemysław Biecek, Marvin N. Wright,
• Abstract summary: interpretable machine learning (IML) or explainable artificial intelligence (XAI) has become increasingly important over the last decade. Lack of readily available IML methods may have deterred medical practitioners and policy makers in public health from leveraging the full potential of machine learning. We present a review of the limited existing amount of work on IML methods for survival analysis within the context of the general IML taxonomy.
• Score: 3.618561939712435
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: With the spread and rapid advancement of black box machine learning models, the field of interpretable machine learning (IML) or explainable artificial intelligence (XAI) has become increasingly important over the last decade. This is particularly relevant for survival analysis, where the adoption of IML techniques promotes transparency, accountability and fairness in sensitive areas, such as clinical decision making processes, the development of targeted therapies, interventions or in other medical or healthcare related contexts. More specifically, explainability can uncover a survival model's potential biases and limitations and provide more mathematically sound ways to understand how and which features are influential for prediction or constitute risk factors. However, the lack of readily available IML methods may have deterred medical practitioners and policy makers in public health from leveraging the full potential of machine learning for predicting time-to-event data. We present a comprehensive review of the limited existing amount of work on IML methods for survival analysis within the context of the general IML taxonomy. In addition, we formally detail how commonly used IML methods, such as such as individual conditional expectation (ICE), partial dependence plots (PDP), accumulated local effects (ALE), different feature importance measures or Friedman's H-interaction statistics can be adapted to survival outcomes. An application of several IML methods to real data on data on under-5 year mortality of Ghanaian children from the Demographic and Health Surveys (DHS) Program serves as a tutorial or guide for researchers, on how to utilize the techniques in practice to facilitate understanding of model decisions or predictions.

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