An Adaptive Machine Learning Triage Framework for Predicting Alzheimer's Disease Progression

• URL: http://arxiv.org/abs/2511.06681v1
• Date: Mon, 10 Nov 2025 03:57:56 GMT
• Title: An Adaptive Machine Learning Triage Framework for Predicting Alzheimer's Disease Progression
• Authors: Richard Hou, Shengpu Tang, Wei Jin,
• Abstract summary: Accurate predictions of conversion from mild cognitive impairment (MCI) to Alzheimer's disease (AD) can enable effective personalized therapy.<n>We design a two-stage machine learning framework that selectively obtains advanced, costly features based on their predicted "value of information"<n>Our framework reduces the need for advanced testing by 20% while achieving a test AUROC of 0.929, comparable to the model that uses both basic and advanced features.
• Score: 12.418201300163545
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurate predictions of conversion from mild cognitive impairment (MCI) to Alzheimer's disease (AD) can enable effective personalized therapy. While cognitive tests and clinical data are routinely collected, they lack the predictive power of PET scans and CSF biomarker analysis, which are prohibitively expensive to obtain for every patient. To address this cost-accuracy dilemma, we design a two-stage machine learning framework that selectively obtains advanced, costly features based on their predicted "value of information". We apply our framework to predict AD progression for MCI patients using data from the Alzheimer's Disease Neuroimaging Initiative (ADNI). Our framework reduces the need for advanced testing by 20% while achieving a test AUROC of 0.929, comparable to the model that uses both basic and advanced features (AUROC=0.915, p=0.1010). We also provide an example interpretability analysis showing how one may explain the triage decision. Our work presents an interpretable, data-driven framework that optimizes AD diagnostic pathways and balances accuracy with cost, representing a step towards making early, reliable AD prediction more accessible in real-world practice. Future work should consider multiple categories of advanced features and larger-scale validation.

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