Search Results for author: Shekoofeh Azizi

Found 17 papers, 4 papers with code

Radial Basis Feature Transformation to Arm CNNs Against Adversarial Attacks

no code implementations ICLR 2019 Saeid Asgari Taghanaki, Shekoofeh Azizi, Ghassan Hamarneh

The linear and non-flexible nature of deep convolutional models makes them vulnerable to carefully crafted adversarial perturbations.

Image Classification

Towards Accurate Differential Diagnosis with Large Language Models

no code implementations30 Nov 2023 Daniel McDuff, Mike Schaekermann, Tao Tu, Anil Palepu, Amy Wang, Jake Garrison, Karan Singhal, Yash Sharma, Shekoofeh Azizi, Kavita Kulkarni, Le Hou, Yong Cheng, Yun Liu, S Sara Mahdavi, Sushant Prakash, Anupam Pathak, Christopher Semturs, Shwetak Patel, Dale R Webster, Ewa Dominowska, Juraj Gottweis, Joelle Barral, Katherine Chou, Greg S Corrado, Yossi Matias, Jake Sunshine, Alan Karthikesalingam, Vivek Natarajan

Comparing the two assisted study arms, the DDx quality score was higher for clinicians assisted by our LLM (top-10 accuracy 51. 7%) compared to clinicians without its assistance (36. 1%) (McNemar's Test: 45. 7, p < 0. 01) and clinicians with search (44. 4%) (4. 75, p = 0. 03).

Synthetic Data from Diffusion Models Improves ImageNet Classification

no code implementations17 Apr 2023 Shekoofeh Azizi, Simon Kornblith, Chitwan Saharia, Mohammad Norouzi, David J. Fleet

Deep generative models are becoming increasingly powerful, now generating diverse high fidelity photo-realistic samples given text prompts.

Classification Data Augmentation

Joint Debiased Representation and Image Clustering Learning with Self-Supervision

no code implementations14 Sep 2022 Shunjie-Fabian Zheng, JaeEun Nam, Emilio Dorigatti, Bernd Bischl, Shekoofeh Azizi, Mina Rezaei

However, existing methods for joint clustering and contrastive learning do not perform well on long-tailed data distributions, as majority classes overwhelm and distort the loss of minority classes, thus preventing meaningful representations to be learned.

Clustering Contrastive Learning +2

Deep Bregman Divergence for Contrastive Learning of Visual Representations

no code implementations15 Sep 2021 Mina Rezaei, Farzin Soleymani, Bernd Bischl, Shekoofeh Azizi

In this paper, we propose deep Bregman divergences for contrastive learning of visual representation where we aim to enhance contrastive loss used in self-supervised learning by training additional networks based on functional Bregman divergence.

Contrastive Learning object-detection +2

Big Self-Supervised Models Advance Medical Image Classification

1 code implementation ICCV 2021 Shekoofeh Azizi, Basil Mustafa, Fiona Ryan, Zachary Beaver, Jan Freyberg, Jonathan Deaton, Aaron Loh, Alan Karthikesalingam, Simon Kornblith, Ting Chen, Vivek Natarajan, Mohammad Norouzi

Self-supervised pretraining followed by supervised fine-tuning has seen success in image recognition, especially when labeled examples are scarce, but has received limited attention in medical image analysis.

Contrastive Learning General Classification +3

Contextual Residual Aggregation for Ultra High-Resolution Image Inpainting

6 code implementations CVPR 2020 Zili Yi, Qiang Tang, Shekoofeh Azizi, Daesik Jang, Zhan Xu

Since convolutional layers of the neural network only need to operate on low-resolution inputs and outputs, the cost of memory and computing power is thus well suppressed.

2k 8k +2

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