no code implementations • 6 Mar 2022 • Haocheng Dai, Martin Bauer, P. Thomas Fletcher, Sarang C. Joshi
To statistically study the variability and differences between normal and abnormal brain connectomes, a mathematical model of the neural connections is required.
1 code implementation • 20 Sep 2021 • Kristen M. Campbell, Haocheng Dai, Zhe Su, Martin Bauer, P. Thomas Fletcher, Sarang C. Joshi
In order to enable population-level statistical analysis of the structural connectome, we propose representing a connectome as a Riemannian metric, which is a point on an infinite-dimensional manifold.
no code implementations • 9 Mar 2021 • Kristen M. Campbell, Haocheng Dai, Zhe Su, Martin Bauer, P. Thomas Fletcher, Sarang C. Joshi
The structural connectome is often represented by fiber bundles generated from various types of tractography.
no code implementations • 9 Oct 2018 • Chenxiao Zhao, P. Thomas Fletcher, Mixue Yu, Yaxin Peng, Guixu Zhang, Chaomin Shen
By considering the data space as a non-linear space with the Fisher information metric induced from a neural network, we first propose an adversarial attack algorithm termed one-step spectral attack (OSSA).
no code implementations • 21 Nov 2017 • Hang Shao, Abhishek Kumar, P. Thomas Fletcher
Deep generative models learn a mapping from a low dimensional latent space to a high-dimensional data space.
no code implementations • NeurIPS 2017 • Abhishek Kumar, Prasanna Sattigeri, P. Thomas Fletcher
Semi-supervised learning methods using Generative Adversarial Networks (GANs) have shown promising empirical success recently.
no code implementations • 6 Dec 2016 • Anant Raj, Abhishek Kumar, Youssef Mroueh, P. Thomas Fletcher, Bernhard Schölkopf
We consider transformations that form a \emph{group} and propose an approach based on kernel methods to derive local group invariant representations.