Search Results for author: Joel Zylberberg

Found 8 papers, 4 papers with code

Identifying Shared Decodable Concepts in the Human Brain Using Image-Language Foundation Models

no code implementations6 Jun 2023 Cory Efird, Alex Murphy, Joel Zylberberg, Alona Fyshe

In the final section of our analysis, we localize shared decodable concepts in the brain using a voxel-masking optimization method to produce a shared decodable concept (SDC) space.

Contrastive Learning Dimensionality Reduction

Improving the Accuracy and Robustness of CNNs Using a Deep CCA Neural Data Regularizer

no code implementations6 Sep 2022 Cassidy Pirlot, Richard C. Gerum, Cory Efird, Joel Zylberberg, Alona Fyshe

As convolutional neural networks (CNNs) become more accurate at object recognition, their representations become more similar to the primate visual system.

Object Recognition

Different Spectral Representations in Optimized Artificial Neural Networks and Brains

1 code implementation22 Aug 2022 Richard C. Gerum, Cassidy Pirlot, Alona Fyshe, Joel Zylberberg

For convolutional networks, the best $\alpha$ values depend on the task complexity and evaluation metric: lower $\alpha$ values optimized validation accuracy and robustness to adversarial attack for networks performing a simple object recognition task (categorizing MNIST images of handwritten digits); for a more complex task (categorizing CIFAR-10 natural images), we found that lower $\alpha$ values optimized validation accuracy whereas higher $\alpha$ values optimized adversarial robustness.

Adversarial Attack Adversarial Robustness +1

Improved object recognition using neural networks trained to mimic the brain's statistical properties

1 code implementation25 May 2019 Callie Federer, Haoyan Xu, Alona Fyshe, Joel Zylberberg

To test this, we trained DCNNs on a composite task, wherein networks were trained to: a) classify images of objects; while b) having intermediate representations that resemble those observed in neural recordings from monkey visual cortex.

Object Object Categorization +2

A Self-Organizing Memory Network

no code implementations ICLR 2018 Callie Federer, Joel Zylberberg

Information in working memory, however, is retained for tens of seconds, suggesting the question of how time-varying neural activities maintain stable representations.

Using deep learning to reveal the neural code for images in primary visual cortex

1 code implementation19 Jun 2017 William F. Kindel, Elijah D. Christensen, Joel Zylberberg

Moreover, even for the simple and complex cells-- the best-understood V1 neurons-- it is challenging to predict how they will respond to natural image stimuli.

Searching for modified growth patterns with tomographic surveys

1 code implementation23 Sep 2008 Gong-Bo Zhao, Levon Pogosian, Alessandra Silvestri, Joel Zylberberg

In alternative theories of gravity, designed to produce cosmic acceleration at the current epoch, the growth of large scale structure can be modified.

Clustering

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