Search Results for author: Mate Lengyel

Found 7 papers, 0 papers with code

A universal probabilistic spike count model reveals ongoing modulation of neural variability

no code implementations NeurIPS 2021 David Liu, Mate Lengyel

We find that variability in these cells defies a simple parametric relationship with mean spike count as assumed in standard models, its modulation by external covariates can be comparably strong to that of the mean firing rate, and slow low-dimensional latent factors explain away neural correlations.

Gaussian Processes Variational Inference

Exact natural gradient in deep linear networks and its application to the nonlinear case

no code implementations NeurIPS 2018 Alberto Bernacchia, Mate Lengyel, Guillaume Hennequin

Stochastic gradient descent (SGD) remains the method of choice for deep learning, despite the limitations arising for ill-behaved objective functions.

Analog Memories in a Balanced Rate-Based Network of E-I Neurons

no code implementations NeurIPS 2014 Dylan Festa, Guillaume Hennequin, Mate Lengyel

The persistent and graded activity often observed in cortical circuits is sometimes seen as a signature of autoassociative retrieval of memories stored earlier in synaptic efficacies.

Retrieval

Fast Sampling-Based Inference in Balanced Neuronal Networks

no code implementations NeurIPS 2014 Guillaume Hennequin, Laurence Aitchison, Mate Lengyel

Multiple lines of evidence support the notion that the brain performs probabilistic inference in multiple cognitive domains, including perception and decision making.

Decision Making

A Dual Algorithm for Olfactory Computation in the Locust Brain

no code implementations NeurIPS 2014 Sina Tootoonian, Mate Lengyel

We study the early locust olfactory system in an attempt to explain its well-characterized structure and dynamics.

Correlations strike back (again): the case of associative memory retrieval

no code implementations NeurIPS 2013 Cristina Savin, Peter Dayan, Mate Lengyel

It has long been recognised that statistical dependencies in neuronal activity need to be taken into account when decoding stimuli encoded in a neural population.

Retrieval

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