Search Results for author: Pradeep Shenoy

Found 21 papers, 6 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

Rescuing referral failures during automated diagnosis of domain-shifted medical images

no code implementations28 Nov 2023 Anuj Srivastava, Karm Patel, Pradeep Shenoy, Devarajan Sridharan

Here, we address a fundamental challenge with selective classification during automated diagnosis with domain-shifted medical images.

Disease Prediction Domain Generalization

Using Early Readouts to Mediate Featural Bias in Distillation

no code implementations28 Oct 2023 Rishabh Tiwari, Durga Sivasubramanian, Anmol Mekala, Ganesh Ramakrishnan, Pradeep Shenoy

Deep networks tend to learn spurious feature-label correlations in real-world supervised learning tasks.

Fairness

STREAMLINE: Streaming Active Learning for Realistic Multi-Distributional Settings

1 code implementation18 May 2023 Nathan Beck, Suraj Kothawade, Pradeep Shenoy, Rishabh Iyer

However, learning unbiased models depends on building a dataset that is representative of a diverse range of realistic scenarios for a given task.

Active Learning Autonomous Vehicles +3

Overcoming Simplicity Bias in Deep Networks using a Feature Sieve

no code implementations30 Jan 2023 Rishabh Tiwari, Pradeep Shenoy

Simplicity bias is the concerning tendency of deep networks to over-depend on simple, weakly predictive features, to the exclusion of stronger, more complex features.

Representation Learning

Edges to Shapes to Concepts: Adversarial Augmentation for Robust Vision

no code implementations CVPR 2023 Aditay Tripathi, Rishubh Singh, Anirban Chakraborty, Pradeep Shenoy

We show that our augmentations significantly improve classification accuracy and robustness measures on a range of datasets and neural architectures.

Classification Data Augmentation

Interactive Concept Bottleneck Models

1 code implementation14 Dec 2022 Kushal Chauhan, Rishabh Tiwari, Jan Freyberg, Pradeep Shenoy, Krishnamurthy Dvijotham

Concept bottleneck models (CBMs) are interpretable neural networks that first predict labels for human-interpretable concepts relevant to the prediction task, and then predict the final label based on the concept label predictions.

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 Deep Vision Models Through Shape Sensitization

no code implementations14 Nov 2022 Aditay Tripathi, Rishubh Singh, Anirban Chakraborty, Pradeep Shenoy

We also obtain gains of up to 28% and 8. 5% on natural adversarial and out-of-distribution datasets like ImageNet-A (for ViT-B) and ImageNet-R (for ViT-S), respectively.

Classification Data Augmentation

Sample-Efficient Personalization: Modeling User Parameters as Low Rank Plus Sparse Components

no code implementations7 Oct 2022 Soumyabrata Pal, Prateek Varshney, Prateek Jain, Abhradeep Guha Thakurta, Gagan Madan, Gaurav Aggarwal, Pradeep Shenoy, Gaurav Srivastava

We then study the framework in the linear setting, where the problem reduces to that of estimating the sum of a rank-$r$ and a $k$-column sparse matrix using a small number of linear measurements.

Meta-Learning Recommendation Systems

Shaken, and Stirred: Long-Range Dependencies Enable Robust Outlier Detection with PixelCNN++

1 code implementation29 Aug 2022 Barath Mohan Umapathi, Kushal Chauhan, Pradeep Shenoy, Devarajan Sridharan

We also show that our solutions work well with other types of generative models (generative flows and variational autoencoders) and that their efficacy is governed by each model's reliance on local dependencies.

Outlier Detection

Matching options to tasks using Option-Indexed Hierarchical Reinforcement Learning

no code implementations12 Jun 2022 Kushal Chauhan, Soumya Chatterjee, Akash Reddy, Balaraman Ravindran, Pradeep Shenoy

The options framework in Hierarchical Reinforcement Learning breaks down overall goals into a combination of options or simpler tasks and associated policies, allowing for abstraction in the action space.

Continual Learning Hierarchical Reinforcement Learning +3

FLOAT: Factorized Learning of Object Attributes for Improved Multi-object Multi-part Scene Parsing

1 code implementation CVPR 2022 Rishubh Singh, Pranav Gupta, Pradeep Shenoy, Ravikiran Sarvadevabhatla

Our framework involves independent dense prediction of object category and part attributes which increases scalability and reduces task complexity compared to the monolithic label space counterpart.

Object Scene Parsing

Adaptive Mixing of Auxiliary Losses in Supervised Learning

1 code implementation7 Feb 2022 Durga Sivasubramanian, Ayush Maheshwari, Pradeep Shenoy, Prathosh AP, Ganesh Ramakrishnan

In several supervised learning scenarios, auxiliary losses are used in order to introduce additional information or constraints into the supervised learning objective.

Denoising Knowledge Distillation +1

GCR: Gradient Coreset Based Replay Buffer Selection For Continual Learning

no code implementations CVPR 2022 Rishabh Tiwari, KrishnaTeja Killamsetty, Rishabh Iyer, Pradeep Shenoy

To address this, replay-based CL approaches maintain and repeatedly retrain on a small buffer of data selected across encountered tasks.

Continual Learning

Robust outlier detection by de-biasing VAE likelihoods

1 code implementation CVPR 2022 Kushal Chauhan, Barath Mohan U, Pradeep Shenoy, Manish Gupta, Devarajan Sridharan

Likelihoods computed by deep generative models (DGMs) are a candidate metric for outlier detection with unlabeled data.

Outlier Detection

End-to-End Neuro-Symbolic Architecture for Image-to-Image Reasoning Tasks

no code implementations6 Jun 2021 Ananye Agarwal, Pradeep Shenoy, Mausam

A key limitation is that such neural-to-symbolic models can only be trained end-to-end for tasks where the output space is symbolic.

Image Reconstruction Policy Gradient Methods

Model-agnostic Fits for Understanding Information Seeking Patterns in Humans

no code implementations9 Dec 2020 Soumya Chatterjee, Pradeep Shenoy

In decision making tasks under uncertainty, humans display characteristic biases in seeking, integrating, and acting upon information relevant to the task.

Decision Making

Strategic Impatience in Go/NoGo versus Forced-Choice Decision-Making

no code implementations NeurIPS 2012 Pradeep Shenoy, Angela J. Yu

We postulate that this ``impatience'' to go is a strategic adjustment in response to the implicit asymmetry in the cost structure of GNG: the NoGo response requires waiting until the response deadline, while a Go response immediately terminates the current trial.

Decision Making

A rational decision making framework for inhibitory control

no code implementations NeurIPS 2010 Pradeep Shenoy, Angela J. Yu, Rajesh P. Rao

Intelligent agents are often faced with the need to choose actions with uncertain consequences, and to modify those actions according to ongoing sensory processing and changing task demands.

Bayesian Inference Decision Making

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