Search Results for author: Srdjan Ostojic

Found 7 papers, 2 papers with code

The computational role of structure in neural activity and connectivity

no code implementations31 Aug 2023 Srdjan Ostojic, Stefano Fusi

One major challenge of neuroscience is finding interesting structures in a seemingly disorganized neural activity.

Aligned and oblique dynamics in recurrent neural networks

1 code implementation14 Jul 2023 Friedrich Schuessler, Francesca Mastrogiuseppe, Srdjan Ostojic, Omri Barak

Here, we utilize recurrent neural networks (RNNs) to explore the question of when and how neural dynamics and the network's output are related from a geometrical point of view.

Relation

Probing the relationship between linear dynamical systems and low-rank recurrent neural network models

no code implementations19 Oct 2021 Adrian Valente, Srdjan Ostojic, Jonathan Pillow

We show that latent LDS models can only be converted to RNNs in specific limit cases, due to the non-Markovian property of latent LDS models.

Interpreting neural computations by examining intrinsic and embedding dimensionality of neural activity

no code implementations8 Jul 2021 Mehrdad Jazayeri, Srdjan Ostojic

The ongoing exponential rise in recording capacity calls for new approaches for analysing and interpreting neural data.

The interplay between randomness and structure during learning in RNNs

1 code implementation NeurIPS 2020 Friedrich Schuessler, Francesca Mastrogiuseppe, Alexis Dubreuil, Srdjan Ostojic, Omri Barak

Recurrent neural networks (RNNs) trained on low-dimensional tasks have been widely used to model functional biological networks.

Disentangling the roles of dimensionality and cell classes in neural computations

no code implementations NeurIPS Workshop Neuro_AI 2019 Alexis M Dubreuil, Adrian Valente, Francesca Mastrogiuseppe, Srdjan Ostojic

In these networks, the rank of the connectivity controls the dimensionality of the dynamics, while the number of components in the Gaussian mixture corresponds to the number of cell classes.

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