no code implementations • 20 Feb 2024 • Elodie Germani, Nikhil Baghwat, Mathieu Dugré, Rémi Gau, Albert Montillo, Kevin Nguyen, Andrzej Sokolowski, Madeleine Sharp, Jean-Baptiste Poline, Tristan Glatard
This study is part of a larger project investigating the replicability of potential neuroimaging biomarkers of PD.
no code implementations • 4 Oct 2023 • Adam Wang, Son Nguyen, Albert Montillo
MEDL separately quantifies cluster-invariant fixed effects (FE) and cluster-specific random effects (RE) through the introduction of: 1) a cluster adversary which encourages the learning of cluster-invariant FE, 2) a Bayesian neural network which quantifies the RE, and a mixing function combining the FE an RE into a mixed-effect prediction.
no code implementations • 29 Nov 2022 • Alex Treacher, Kevin Nguyen, Dylan Owens, Daniel Heitjan, Albert Montillo
This work demonstrates the ability to produce readily interpretable statistical metrics for model fit, fixed effects covariance coefficients, and prediction confidence.
no code implementations • 24 Feb 2022 • Alex H. Treacher, Albert Montillo
We present two novel hyperparameter optimization strategies for optimization of deep learning models with a modular architecture constructed of multiple subnetworks.
no code implementations • 23 Feb 2022 • Kevin P. Nguyen, Albert Montillo
We propose a general-purpose framework for Adversarially-Regularized Mixed Effects Deep learning (ARMED) models through non-intrusive additions to existing neural networks: 1) an adversarial classifier constraining the original model to learn only cluster-invariant features, 2) a random effects subnetwork capturing cluster-specific features, and 3) an approach to apply random effects to clusters unseen during training.
no code implementations • 31 Jan 2022 • Cooper J. Mellema, Albert Montillo
We propose a new machine learning based measure of functional connectivity which efficiently captures linear and nonlinear aspects.
no code implementations • 25 Nov 2019 • Cooper J. Mellema, Alex Treacher, Kevin P. Nguyen, Albert Montillo
Connectivity features identified as important across all 3 atlas granularity levels include FC to the supplementary motor gyrus and language association cortex, regions associated with deficits in social and sensory processing in ASD.
no code implementations • 22 Nov 2019 • Vyom Raval, Kevin P. Nguyen, Ashley Gerald, Richard B. Dewey Jr., Albert Montillo
The primary aim of this study was to develop a model using clinical measures and biomechanical measures of gait and postural stability to predict an individual's PD progression over two years.
no code implementations • 17 Oct 2019 • Kevin P. Nguyen, Cherise Chin Fatt, Alex Treacher, Cooper Mellema, Madhukar H. Trivedi, Albert Montillo
This method is tested on a challenging task of predicting antidepressant treatment response from pre-treatment task-based fMRI and demonstrates a 26% improvement in performance in predicting response using augmented images.