Search Results for author: Nupur Kumari

Found 15 papers, 7 papers with code

Customizing Text-to-Image Diffusion with Camera Viewpoint Control

no code implementations18 Apr 2024 Nupur Kumari, Grace Su, Richard Zhang, Taesung Park, Eli Shechtman, Jun-Yan Zhu

Model customization introduces new concepts to existing text-to-image models, enabling the generation of the new concept in novel contexts.

Object Prompt Engineering

Ablating Concepts in Text-to-Image Diffusion Models

1 code implementation ICCV 2023 Nupur Kumari, Bingliang Zhang, Sheng-Yu Wang, Eli Shechtman, Richard Zhang, Jun-Yan Zhu

To achieve this goal, we propose an efficient method of ablating concepts in the pretrained model, i. e., preventing the generation of a target concept.

Content-Based Search for Deep Generative Models

1 code implementation6 Oct 2022 Daohan Lu, Sheng-Yu Wang, Nupur Kumari, Rohan Agarwal, Mia Tang, David Bau, Jun-Yan Zhu

To address this need, we introduce the task of content-based model search: given a query and a large set of generative models, finding the models that best match the query.

Contrastive Learning Image and Sketch based Model Retrieval +4

Ensembling Off-the-shelf Models for GAN Training

1 code implementation CVPR 2022 Nupur Kumari, Richard Zhang, Eli Shechtman, Jun-Yan Zhu

Can the collective "knowledge" from a large bank of pretrained vision models be leveraged to improve GAN training?

Image Generation

Data InStance Prior (DISP) in Generative Adversarial Networks

no code implementations8 Dec 2020 Puneet Mangla, Nupur Kumari, Mayank Singh, Balaji Krishnamurthy, Vineeth N Balasubramanian

Previous works have addressed training in low data setting by leveraging transfer learning and data augmentation techniques.

Data Augmentation Image Generation +2

LT-GAN: Self-Supervised GAN with Latent Transformation Detection

no code implementations19 Oct 2020 Parth Patel, Nupur Kumari, Mayank Singh, Balaji Krishnamurthy

We propose a self-supervised approach (LT-GAN) to improve the generation quality and diversity of images by estimating the GAN-induced transformation (i. e. transformation induced in the generated images by perturbing the latent space of generator).

Image Generation

Data Instance Prior for Transfer Learning in GANs

no code implementations28 Sep 2020 Puneet Mangla, Nupur Kumari, Mayank Singh, Vineeth N. Balasubramanian, Balaji Krishnamurthy

Recent advances in generative adversarial networks (GANs) have shown remarkable progress in generating high-quality images.

Data Augmentation Image Generation +2

On the Benefits of Models with Perceptually-Aligned Gradients

no code implementations4 May 2020 Gunjan Aggarwal, Abhishek Sinha, Nupur Kumari, Mayank Singh

In this paper, we leverage models with interpretable perceptually-aligned features and show that adversarial training with low max-perturbation bound can improve the performance of models for zero-shot and weakly supervised localization tasks.

ShapeVis: High-dimensional Data Visualization at Scale

no code implementations15 Jan 2020 Nupur Kumari, Siddarth R., Akash Rupela, Piyush Gupta, Balaji Krishnamurthy

This graph captures the structural characteristics of the point cloud, and its weights are determined using a Finite Markov Chain.

Community Detection Data Visualization +3

A Method for Computing Class-wise Universal Adversarial Perturbations

no code implementations1 Dec 2019 Tejus Gupta, Abhishek Sinha, Nupur Kumari, Mayank Singh, Balaji Krishnamurthy

We present an algorithm for computing class-specific universal adversarial perturbations for deep neural networks.

Harnessing the Vulnerability of Latent Layers in Adversarially Trained Models

1 code implementation13 May 2019 Mayank Singh, Abhishek Sinha, Nupur Kumari, Harshitha Machiraju, Balaji Krishnamurthy, Vineeth N. Balasubramanian

We analyze the adversarially trained robust models to study their vulnerability against adversarial attacks at the level of the latent layers.

Adversarial Attack

ReDecode Framework for Iterative Improvement in Paraphrase Generation

no code implementations11 Nov 2018 Milan Aggarwal, Nupur Kumari, Ayush Bansal, Balaji Krishnamurthy

Generating paraphrases, that is, different variations of a sentence conveying the same meaning, is an important yet challenging task in NLP.

Information Retrieval Paraphrase Generation +3

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