Search Results for author: Soroush Abbasi Koohpayegani

Found 16 papers, 15 papers with code

GeNIe: Generative Hard Negative Images Through Diffusion

1 code implementation5 Dec 2023 Soroush Abbasi Koohpayegani, Anuj Singh, K L Navaneet, Hadi Jamali-Rad, Hamed Pirsiavash

To achieve this, inspired by recent diffusion based image editing techniques, we limit the number of diffusion iterations to ensure the generated image retains low-level and background features from the source image while representing the target category, resulting in a hard negative sample for the source category.

Data Augmentation Image Generation

Compact3D: Compressing Gaussian Splat Radiance Field Models with Vector Quantization

1 code implementation30 Nov 2023 KL Navaneet, Kossar Pourahmadi Meibodi, Soroush Abbasi Koohpayegani, Hamed Pirsiavash

3D Gaussian Splatting is a new method for modeling and rendering 3D radiance fields that achieves much faster learning and rendering time compared to SOTA NeRF methods.

Quantization

NOLA: Compressing LoRA using Linear Combination of Random Basis

1 code implementation4 Oct 2023 Soroush Abbasi Koohpayegani, KL Navaneet, Parsa Nooralinejad, Soheil Kolouri, Hamed Pirsiavash

These methods can reduce the number of parameters needed to fine-tune an LLM by several orders of magnitude.

SlowFormer: Universal Adversarial Patch for Attack on Compute and Energy Efficiency of Inference Efficient Vision Transformers

1 code implementation4 Oct 2023 KL Navaneet, Soroush Abbasi Koohpayegani, Essam Sleiman, Hamed Pirsiavash

We show that such models can be vulnerable to a universal adversarial patch attack, where the attacker optimizes for a patch that when pasted on any image, can increase the compute and power consumption of the model.

Backdoor Attacks on Vision Transformers

1 code implementation16 Jun 2022 Akshayvarun Subramanya, Aniruddha Saha, Soroush Abbasi Koohpayegani, Ajinkya Tejankar, Hamed Pirsiavash

Vision Transformers (ViT) have recently demonstrated exemplary performance on a variety of vision tasks and are being used as an alternative to CNNs.

Blocking

PRANC: Pseudo RAndom Networks for Compacting deep models

2 code implementations ICCV 2023 Parsa Nooralinejad, Ali Abbasi, Soroush Abbasi Koohpayegani, Kossar Pourahmadi Meibodi, Rana Muhammad Shahroz Khan, Soheil Kolouri, Hamed Pirsiavash

We demonstrate that a deep model can be reparametrized as a linear combination of several randomly initialized and frozen deep models in the weight space.

Image Classification

Adaptive Token Sampling For Efficient Vision Transformers

1 code implementation30 Nov 2021 Mohsen Fayyaz, Soroush Abbasi Koohpayegani, Farnoush Rezaei Jafari, Sunando Sengupta, Hamid Reza Vaezi Joze, Eric Sommerlade, Hamed Pirsiavash, Juergen Gall

Since ATS is a parameter-free module, it can be added to the off-the-shelf pre-trained vision transformers as a plug and play module, thus reducing their GFLOPs without any additional training.

Efficient ViTs Video Classification

Constrained Mean Shift for Representation Learning

no code implementations19 Oct 2021 Ajinkya Tejankar, Soroush Abbasi Koohpayegani, Hamed Pirsiavash

Inspired by recent success of self-supervised learning (SSL), we develop a non-contrastive representation learning method that can exploit additional knowledge.

Representation Learning Self-Supervised Learning

Consistent Explanations by Contrastive Learning

1 code implementation CVPR 2022 Vipin Pillai, Soroush Abbasi Koohpayegani, Ashley Ouligian, Dennis Fong, Hamed Pirsiavash

We show that our method, Contrastive Grad-CAM Consistency (CGC), results in Grad-CAM interpretation heatmaps that are more consistent with human annotations while still achieving comparable classification accuracy.

Contrastive Learning Explainable Models +1

Backdoor Attacks on Self-Supervised Learning

1 code implementation CVPR 2022 Aniruddha Saha, Ajinkya Tejankar, Soroush Abbasi Koohpayegani, Hamed Pirsiavash

We show that such methods are vulnerable to backdoor attacks - where an attacker poisons a small part of the unlabeled data by adding a trigger (image patch chosen by the attacker) to the images.

Inductive Bias Knowledge Distillation +1

Mean Shift for Self-Supervised Learning

1 code implementation ICCV 2021 Soroush Abbasi Koohpayegani, Ajinkya Tejankar, Hamed Pirsiavash

Most recent self-supervised learning (SSL) algorithms learn features by contrasting between instances of images or by clustering the images and then contrasting between the image clusters.

Clustering Self-Supervised Learning

ISD: Self-Supervised Learning by Iterative Similarity Distillation

1 code implementation ICCV 2021 Ajinkya Tejankar, Soroush Abbasi Koohpayegani, Vipin Pillai, Paolo Favaro, Hamed Pirsiavash

Hence, we introduce a self supervised learning algorithm where we use a soft similarity for the negative images rather than a binary distinction between positive and negative pairs.

Contrastive Learning Self-Supervised Learning +1

Cannot find the paper you are looking for? You can Submit a new open access paper.