Brain Genome Association (BGA) study, which investigates the associations between brain structure/function (characterized by neuroimaging phenotypes) and genetic variations (characterized by Single Nucleotide Polymorphisms (SNPs)), is important in pathological analysis of neurological disease. However, the current BGA studies are limited as they did not explicitly consider the disease labels, source importance, and sample importance in their formulations. We address these issues by proposing a robust and discriminative BGA formulation. Specifically, we learn two transformation matrices for mapping two heterogeneous data sources (i.e., neuroimaging data and genetic data) into a common space, so that the samples from the same subject (but different sources) are close to each other, and also the samples with different labels are separable. In addition, we add a sparsity constraint on the transformation matrices to enable feature selection on both data sources. Furthermore, both sample importance and source importance are also considered in the formulation via adaptive parameter-free sample and source weightings. We have conducted various experiments, using Alzheimer’s Disease Neuroimaging Initiative (ADNI) dataset, to test how well the neuroimaging phenotypes and SNPs can represent each other in the common space.
|Title of host publication||Medical Image Computing and Computer Assisted Intervention – MICCAI 2019 - 22nd International Conference, Proceedings|
|Editors||Dinggang Shen, Pew-Thian Yap, Tianming Liu, Terry M. Peters, Ali Khan, Lawrence H. Staib, Caroline Essert, Sean Zhou|
|Publisher||Springer Science and Business Media Deutschland GmbH|
|Number of pages||9|
|Publication status||Published - 2019|
|Event||22nd International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2019 - Shenzhen, China|
Duration: 2019 Oct 13 → 2019 Oct 17
|Name||Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)|
|Conference||22nd International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2019|
|Period||19/10/13 → 19/10/17|
Bibliographical noteFunding Information:
This work was supported in part by NIH grants (AG053867, AG041721, and AG042599). X. Zhu was supported in part by the National Natural Science Foundation of China (61876046 and 61573270), the Guangxi High Institutions Program of Introducing 100 High-Level Overseas Talents, the Strategic Research Excellence Fund at Massey University, and the Marsden Fund of New Zealand (MAU1721). The authors thank the Alzheimer’s Disease Neuroimaging Initiative for providing the data sets.
© Springer Nature Switzerland AG 2019.
ASJC Scopus subject areas
- Computer Science(all)
- Theoretical Computer Science