Search Results for author: Nicholas G. Roy

Found 3 papers, 0 papers with code

Efficient inference for time-varying behavior during learning

no code implementations NeurIPS 2018 Nicholas G. Roy, Ji Hyun Bak, Athena Akrami, Carlos Brody, Jonathan W. Pillow

To overcome these limitations, we propose a dynamic psychophysical model that efficiently tracks trial-to-trial changes in behavior over the course of training.

Gaussian process based nonlinear latent structure discovery in multivariate spike train data

no code implementations NeurIPS 2017 Anqi Wu, Nicholas G. Roy, Stephen Keeley, Jonathan W. Pillow

We apply the model to spike trains recorded from hippocampal place cells and show that it compares favorably to a variety of previous methods for latent structure discovery, including variational auto-encoder (VAE) based methods that parametrize the nonlinear mapping from latent space to spike rates with a deep neural network.

Gaussian Processes

Nonparametric Bayesian inference on multivariate exponential families

no code implementations NeurIPS 2014 William R. Vega-Brown, Marek Doniec, Nicholas G. Roy

We develop a model by choosing the maximum entropy distribution from the set of models satisfying certain smoothness and independence criteria; we show that inference on this model generalizes local kernel estimation to the context of Bayesian inference on stochastic processes.

Bayesian Inference

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