Search Results for author: Nishant Jain

Found 12 papers, 0 papers with code

Improving Generalization via Meta-Learning on Hard Samples

no code implementations18 Mar 2024 Nishant Jain, Arun S. Suggala, Pradeep Shenoy

In particular, we show that using hard-to-classify instances in the validation set has both a theoretical connection to, and strong empirical evidence of generalization.

Meta-Learning

Learning Robust Multi-Scale Representation for Neural Radiance Fields from Unposed Images

no code implementations8 Nov 2023 Nishant Jain, Suryansh Kumar, Luc van Gool

The key ideas presented in this paper are (i) Recovering accurate camera parameters via a robust pipeline from unposed day-to-day images is equally crucial in neural novel view synthesis problem; (ii) It is rather more practical to model object's content at different resolutions since dramatic camera motion is highly likely in day-to-day unposed images.

Depth Estimation Depth Prediction +2

Efficiently Robustify Pre-trained Models

no code implementations ICCV 2023 Nishant Jain, Harkirat Behl, Yogesh Singh Rawat, Vibhav Vineet

A recent trend in deep learning algorithms has been towards training large scale models, having high parameter count and trained on big dataset.

Transfer Learning

Enhanced Stable View Synthesis

no code implementations CVPR 2023 Nishant Jain, Suryansh Kumar, Luc van Gool

Extensive evaluation of our approach on the popular benchmark dataset, such as Tanks and Temples, shows substantial improvement in view synthesis results compared to the prior art.

3D Reconstruction Novel View Synthesis

Selective classification using a robust meta-learning approach

no code implementations12 Dec 2022 Nishant Jain, Karthikeyan Shanmugam, Pradeep Shenoy

Predictive uncertainty-a model's self awareness regarding its accuracy on an input-is key for both building robust models via training interventions and for test-time applications such as selective classification.

Bilevel Optimization Classification +3

Instance-Conditional Timescales of Decay for Non-Stationary Learning

no code implementations12 Dec 2022 Nishant Jain, Pradeep Shenoy

Second, we learn an auxiliary scorer model that recovers the appropriate mixture of timescales as a function of the instance itself.

Continual Learning Meta-Learning

Robustifying the Multi-Scale Representation of Neural Radiance Fields

no code implementations9 Oct 2022 Nishant Jain, Suryansh Kumar, Luc van Gool

Although recently proposed Mip-NeRF could handle multi-scale imaging problems with NeRF, it cannot handle camera pose estimation error.

Pose Estimation

Graph neural network initialisation of quantum approximate optimisation

no code implementations4 Nov 2021 Nishant Jain, Brian Coyle, Elham Kashefi, Niraj Kumar

In this work, we focus on the quantum approximate optimisation algorithm (QAOA) for solving the MaxCut problem.

Meta-Learning

MTCNET: Multi-task Learning Paradigm for Crowd Count Estimation

no code implementations23 Aug 2019 Abhay Kumar, Nishant Jain, Suraj Tripathi, Chirag Singh, Kamal Krishna

The auxiliary task helps in capturing the relevant scale-related information to improve the performance of the main task.

Data Augmentation Density Estimation +1

From Fully Supervised to Zero Shot Settings for Twitter Hashtag Recommendation

no code implementations11 Jun 2019 Abhay Kumar, Nishant Jain, Suraj Tripathi, Chirag Singh

To overcome this limitation, we propose a Zero Shot Learning (ZSL) paradigm for predicting unseen hashtag labels by learning the relationship between the semantic space of tweets and the embedding space of hashtag labels.

Zero-Shot Learning

Exploiting SIFT Descriptor for Rotation Invariant Convolutional Neural Network

no code implementations30 Mar 2019 Abhay Kumar, Nishant Jain, Chirag Singh, Suraj Tripathi

The SIFT descriptor layer captures the orientation and the spatial relationship of the features extracted by convolutional layer.

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