4 papers
Wavelet Tree Ensembles for Triangulable Manifolds
Hengrui Luo, Akira Horiguchi, Li Ma
We develop unbalanced Haar (UH) wavelet tree ensembles for regression on triangulable manifolds. Given data sampled on a triangulated manifold, we construct UH wavelet trees whose…
Stream-level flow matching with Gaussian processes
Ganchao Wei, Li Ma
Flow matching (FM) is a family of training algorithms for fitting continuous normalizing flows (CNFs). Conditional flow matching (CFM) exploits the fact that the marginal vector fi…
Efficient Decision Trees for Tensor Regressions
Hengrui Luo, Akira Horiguchi, Li Ma
We proposed the tensor-input tree (TT) method for scalar-on-tensor and tensor-on-tensor regression problems. We first address scalar-on-tensor problem by proposing scalar-output re…
Sampling depth trade-off in function estimation under a two-level design
Akira Horiguchi, Li Ma, Botond T. Szabó
Many modern statistical applications involve a two-level sampling scheme that first samples subjects from a population and then samples observations on each subject. These schemes…