Search Results for author: Vala Vakilian

Found 4 papers, 1 papers with code

Engineering the Neural Collapse Geometry of Supervised-Contrastive Loss

no code implementations2 Oct 2023 Jaidev Gill, Vala Vakilian, Christos Thrampoulidis

Supervised-contrastive loss (SCL) is an alternative to cross-entropy (CE) for classification tasks that makes use of similarities in the embedding space to allow for richer representations.

Symmetric Neural-Collapse Representations with Supervised Contrastive Loss: The Impact of ReLU and Batching

no code implementations13 Jun 2023 Ganesh Ramachandra Kini, Vala Vakilian, Tina Behnia, Jaidev Gill, Christos Thrampoulidis

Supervised contrastive loss (SCL) is a competitive and often superior alternative to the cross-entropy loss for classification.

On the Implicit Geometry of Cross-Entropy Parameterizations for Label-Imbalanced Data

1 code implementation14 Mar 2023 Tina Behnia, Ganesh Ramachandra Kini, Vala Vakilian, Christos Thrampoulidis

Aiming to extend this theory to non-linear models, we investigate the implicit geometry of classifiers and embeddings that are learned by different CE parameterizations.

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