Search Results for author: Anirvan Sengupta

Found 6 papers, 1 papers with code

Toward a Geometrical Understanding of Self-supervised Contrastive Learning

no code implementations13 May 2022 Romain Cosentino, Anirvan Sengupta, Salman Avestimehr, Mahdi Soltanolkotabi, Antonio Ortega, Ted Willke, Mariano Tepper

When used for transfer learning, the projector is discarded since empirical results show that its representation generalizes more poorly than the encoder's.

Contrastive Learning Data Augmentation +2

Spatial Transformer K-Means

no code implementations16 Feb 2022 Romain Cosentino, Randall Balestriero, Yanis Bahroun, Anirvan Sengupta, Richard Baraniuk, Behnaam Aazhang

This enables (i) the reduction of intrinsic nuisances associated with the data, reducing the complexity of the clustering task and increasing performances and producing state-of-the-art results, (ii) clustering in the input space of the data, leading to a fully interpretable clustering algorithm, and (iii) the benefit of convergence guarantees.

Clustering

Manifold-tiling Localized Receptive Fields are Optimal in Similarity-preserving Neural Networks

1 code implementation NeurIPS 2018 Anirvan Sengupta, Cengiz Pehlevan, Mariano Tepper, Alexander Genkin, Dmitri Chklovskii

Many neurons in the brain, such as place cells in the rodent hippocampus, have localized receptive fields, i. e., they respond to a small neighborhood of stimulus space.

Hippocampus

Why do similarity matching objectives lead to Hebbian/anti-Hebbian networks?

no code implementations23 Mar 2017 Cengiz Pehlevan, Anirvan Sengupta, Dmitri B. Chklovskii

Modeling self-organization of neural networks for unsupervised learning using Hebbian and anti-Hebbian plasticity has a long history in neuroscience.

Dimensionality Reduction

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