Search Results for author: Swami Sankaranarayanan

Found 21 papers, 7 papers with code

Efficient Bias Mitigation Without Privileged Information

no code implementations26 Sep 2024 Mateo Espinosa Zarlenga, Swami Sankaranarayanan, Jerone T. A. Andrews, Zohreh Shams, Mateja Jamnik, Alice Xiang

Deep neural networks trained via empirical risk minimisation often exhibit significant performance disparities across groups, particularly when group and task labels are spuriously correlated (e. g., "grassy background" and "cows").

Model Selection

Views Can Be Deceiving: Improved SSL Through Feature Space Augmentation

no code implementations28 May 2024 Kimia Hamidieh, Haoran Zhang, Swami Sankaranarayanan, Marzyeh Ghassemi

Despite the growing popularity of methods which learn from unlabeled data, the extent to which these representations rely on spurious features for prediction is unclear.

Representation Learning Self-Supervised Learning

Aging with GRACE: Lifelong Model Editing with Discrete Key-Value Adaptors

1 code implementation NeurIPS 2023 Thomas Hartvigsen, Swami Sankaranarayanan, Hamid Palangi, Yoon Kim, Marzyeh Ghassemi

We propose GRACE, a lifelong model editing method, which implements spot-fixes on streaming errors of a deployed model, ensuring minimal impact on unrelated inputs.

Model Editing World Knowledge

Semantic uncertainty intervals for disentangled latent spaces

1 code implementation20 Jul 2022 Swami Sankaranarayanan, Anastasios N. Angelopoulos, Stephen Bates, Yaniv Romano, Phillip Isola

Meaningful uncertainty quantification in computer vision requires reasoning about semantic information -- say, the hair color of the person in a photo or the location of a car on the street.

Image Super-Resolution quantile regression +1

Exploring Visual Prompts for Adapting Large-Scale Models

1 code implementation31 Mar 2022 Hyojin Bahng, Ali Jahanian, Swami Sankaranarayanan, Phillip Isola

The surprising effectiveness of visual prompting provides a new perspective on adapting pre-trained models in vision.

Visual Prompting

Learning From Noisy Labels By Regularized Estimation Of Annotator Confusion

1 code implementation CVPR 2019 Ryutaro Tanno, Ardavan Saeedi, Swami Sankaranarayanan, Daniel C. Alexander, Nathan Silberman

We provide a theoretical argument as to how the regularization is essential to our approach both for the case of single annotator and multiple annotators.

Image Classification

Crystal Loss and Quality Pooling for Unconstrained Face Verification and Recognition

no code implementations3 Apr 2018 Rajeev Ranjan, Ankan Bansal, Hongyu Xu, Swami Sankaranarayanan, Jun-Cheng Chen, Carlos D. Castillo, Rama Chellappa

We show that integrating this simple step in the training pipeline significantly improves the performance of face verification and recognition systems.

Face Verification

Improving Network Robustness against Adversarial Attacks with Compact Convolution

no code implementations3 Dec 2017 Rajeev Ranjan, Swami Sankaranarayanan, Carlos D. Castillo, Rama Chellappa

In particular, we show that learning features in a closed and bounded space improves the robustness of the network.

Face Verification

Guided Perturbations: Self-Corrective Behavior in Convolutional Neural Networks

no code implementations ICCV 2017 Swami Sankaranarayanan, Arpit Jain, Ser Nam Lim

Convolutional Neural Networks have been a subject of great importance over the past decade and great strides have been made in their utility for producing state of the art performance in many computer vision problems.

Scene Labeling Semantic Segmentation

Regularizing deep networks using efficient layerwise adversarial training

no code implementations22 May 2017 Swami Sankaranarayanan, Arpit Jain, Rama Chellappa, Ser Nam Lim

In this paper, we present an efficient approach to perform adversarial training by perturbing intermediate layer activations and study the use of such perturbations as a regularizer during training.

Self corrective Perturbations for Semantic Segmentation and Classification

no code implementations23 Mar 2017 Swami Sankaranarayanan, Arpit Jain, Ser Nam Lim

Convolutional Neural Networks have been a subject of great importance over the past decade and great strides have been made in their utility for producing state of the art performance in many computer vision problems.

Classification General Classification +2

Deep Convolutional Neural Network Features and the Original Image

no code implementations6 Nov 2016 Connor J. Parde, Carlos Castillo, Matthew Q. Hill, Y. Ivette Colon, Swami Sankaranarayanan, Jun-Cheng Chen, Alice J. O'Toole

The results show that the DCNN features contain surprisingly accurate information about the yaw and pitch of a face, and about whether the face came from a still image or a video frame.

Face Recognition

An All-In-One Convolutional Neural Network for Face Analysis

1 code implementation3 Nov 2016 Rajeev Ranjan, Swami Sankaranarayanan, Carlos D. Castillo, Rama Chellappa

The proposed method employs a multi-task learning framework that regularizes the shared parameters of CNN and builds a synergy among different domains and tasks.

Age Estimation Face Alignment +5

Unconstrained Still/Video-Based Face Verification with Deep Convolutional Neural Networks

no code implementations9 May 2016 Jun-Cheng Chen, Rajeev Ranjan, Swami Sankaranarayanan, Amit Kumar, Ching-Hui Chen, Vishal M. Patel, Carlos D. Castillo, Rama Chellappa

Over the last five years, methods based on Deep Convolutional Neural Networks (DCNNs) have shown impressive performance improvements for object detection and recognition problems.

Face Detection Face Recognition +3

Triplet Probabilistic Embedding for Face Verification and Clustering

2 code implementations19 Apr 2016 Swami Sankaranarayanan, Azadeh Alavi, Carlos Castillo, Rama Chellappa

Despite significant progress made over the past twenty five years, unconstrained face verification remains a challenging problem.

Clustering Face Verification +1

Triplet Similarity Embedding for Face Verification

no code implementations10 Feb 2016 Swami Sankaranarayanan, Azadeh Alavi, Rama Chellappa

In this work, we present an unconstrained face verification algorithm and evaluate it on the recently released IJB-A dataset that aims to push the boundaries of face verification methods.

Face Verification Triplet

Towards the Design of an End-to-End Automated System for Image and Video-based Recognition

no code implementations28 Jan 2016 Rama Chellappa, Jun-Cheng Chen, Rajeev Ranjan, Swami Sankaranarayanan, Amit Kumar, Vishal M. Patel, Carlos D. Castillo

In this paper, we present a brief history of developments in computer vision and artificial neural networks over the last forty years for the problem of image-based recognition.

Face Verification Object +3

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