no code implementations • 23 Sep 2023 • Wenzhuo Zhou, Annie Qu, Keiland W. Cooper, Norbert Fortin, Babak Shahbaba
Graph Neural Networks (GNNs) have achieved promising performance in a variety of graph-focused tasks.
no code implementations • 9 Feb 2023 • Ba-Hien Tran, Babak Shahbaba, Stephan Mandt, Maurizio Filippone
Autoencoders and their variants are among the most widely used models in representation learning and generative modeling.
no code implementations • 11 Jan 2021 • Shiwei Lan, Shuyi Li, Babak Shahbaba
To address this issue, several methods based on surrogate models have been proposed to speed up the inference process.
1 code implementation • 20 Apr 2020 • Luis Martinez Lomeli, Abdon Iniguez, Babak Shahbaba, John S Lowengrub, Vladimir Minin
In this work, we aim to uncover the underlying mechanisms in hematopoiesis by conducting perturbation experiments, where animal subjects are exposed to an external agent in order to observe the system response and evolution.
Methodology Quantitative Methods Applications
1 code implementation • 8 Feb 2020 • Michelle N. Ngo, Dustin S. Pluta, Alexander N. Ngo, Babak Shahbaba
Biclustering is a class of techniques that simultaneously clusters the rows and columns of a matrix to sort heterogeneous data into homogeneous blocks.
no code implementations • 13 Oct 2019 • Tian Chen, Lingge Li, Gabriel Elias, Norbert Fortin, Babak Shahbaba
We show that our method leads to substantially higher accuracy rate for neural decoding and allows to discover novel biological phenomena by providing a clear latent representation of the decoding process.
no code implementations • 14 Jun 2016 • Andrew Holbrook, Alexander Vandenberg-Rodes, Babak Shahbaba
We reframe linear dimensionality reduction as a problem of Bayesian inference on matrix manifolds.
no code implementations • 6 Feb 2016 • Cheng Zhang, Babak Shahbaba, Hongkai Zhao
Traditionally, the field of computational Bayesian statistics has been divided into two main subfields: variational methods and Markov chain Monte Carlo (MCMC).
no code implementations • 19 Jun 2015 • Shiwei Lan, Babak Shahbaba
In this paper, we propose a novel augmentation technique that handles a wide range of constraints by mapping the constrained domain to a sphere in the augmented space.
1 code implementation • 18 Jun 2015 • Cheng Zhang, Babak Shahbaba, Hongkai Zhao
To this end, we build a surrogate function to approximate the target distribution using properly chosen random bases and an efficient optimization process.
no code implementations • 11 Feb 2015 • Alexander Vandenberg-Rodes, Babak Shahbaba
For the challenging task of modeling multivariate time series, we propose a new class of models that use dependent Mat\'ern processes to capture the underlying structure of data, explain their interdependencies, and predict their unknown values.
no code implementations • 29 Jun 2011 • Babak Shahbaba, Shiwei Lan, Wesley O. Johnson, Radford M. Neal
With the splitting technique, only the slowly-varying part of the energy needs to be handled numerically, and this can be done with a larger stepsize (and hence fewer steps) than would be necessary with a direct simulation of the dynamics.
Computation