Abstract
We propose an innovative machine learning paradigm enabling precision medicine for AD biomarker discovery. The paradigm tailors the imaging biomarker discovery process to individual characteristics of a given patient. We implement this paradigm using a newly developed learning-to-rank method \(\mathop {\mathtt {PLTR}}\limits \). The \(\mathop {\mathtt {PLTR}}\limits \) model seamlessly integrates two objectives for joint optimization: pushing up relevant biomarkers and ranking among relevant biomarkers. The empirical study of \(\mathop {\mathtt {PLTR}}\limits \) conducted on the ADNI data yields promising results to identify and prioritize individual-specific amyloid imaging biomarkers based on the individual’s structural MRI data. The resulting top ranked imaging biomarker has the potential to aid personalized diagnosis and disease subtyping.
Data used in preparation of this article were obtained from the Alzheimer’s Disease Neuroimaging Initiative (ADNI) database (ad-ni.loni.usc.edu). As such, the investigators within the ADNI contributed to the design and implementation of ADNI and/or provided data but did not participate in analysis or writing of this report. A complete listing of ADNI investigators can be found at: https://adni.loni.usc.edu/wp-content/uploads/how_to_apply/ADNI_Acknowledgement_List.pdf.
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Acknowledgements
This work was supported in part by NIH R01 EB022574, R01 LM011360, U19 AG024904, R01 AG019771, and P30 AG010133; NSF IIS 1837964 and 1855501. The complete ADNI Acknowledgement is available at http://adni.loni.usc.edu/wp-content/uploads/how_to_apply/ADNI_Acknowledgement_List.pdf.
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Peng, B. et al. (2019). Prioritizing Amyloid Imaging Biomarkers in Alzheimer’s Disease via Learning to Rank. In: Zhu, D., et al. Multimodal Brain Image Analysis and Mathematical Foundations of Computational Anatomy. MBIA MFCA 2019 2019. Lecture Notes in Computer Science(), vol 11846. Springer, Cham. https://doi.org/10.1007/978-3-030-33226-6_16
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DOI: https://doi.org/10.1007/978-3-030-33226-6_16
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