Scalable Bayesian inference for heat kernel Gaussian processes on manifolds

• 成果类型: Article
• 署名作者: He, Junhui; Ma, Guoxuan; Kang, Jian; Yang, Ying
• 署名单位: Tsinghua University; University of Michigan System; University of Michigan; Tsinghua University
• 刊物名称: JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-STATISTICAL METHODOLOGY
• ISSN/ISSBN: 1369-7412; 1467-9868
• DOI: 10.1093/jrsssb/qkaf057
• 发表日期: 2026-04
• 页码: 516-539
• 关键词: exponential family; Graph Laplacian; heat kernel; Manifold; scalable Gaussian process; Subsampling; laplacian

摘要

We establish a scalable manifold learning method and theory, motivated by the problem of estimating functional magnetic resonance imaging activation manifolds in the Human Connectome Project. Our primary contribution is the development of an efficient estimation technique for heat kernel Gaussian processes in the exponential family model. This approach handles large sample sizes n, preserves the intrinsic geometry of data, and significantly reduces computational complexity from O(n3) to O(n) via a novel reduced-rank approximation of the graph Laplacian's transition matrix and a truncated singular value decomposition for the eigenpair computation. The numerical experiments demonstrate the scalability and improved accuracy of our method for manifold learning tasks involving complex large-scale data.