Search Results for author: Sayak Nag

Found 5 papers, 3 papers with code

Active Learning Guided Federated Online Adaptation: Applications in Medical Image Segmentation

no code implementations8 Dec 2023 Md Shazid Islam, Sayak Nag, Arindam Dutta, Miraj Ahmed, Fahim Faisal Niloy, Amit K. Roy-Chowdhury

Motivated by these, we propose a method for medical image segmentation that adapts to each incoming data batch (online adaptation), incorporates physician feedback through active learning, and assimilates knowledge across facilities in a federated setup.

Active Learning Federated Learning +4

Unbiased Scene Graph Generation in Videos

1 code implementation CVPR 2023 Sayak Nag, Kyle Min, Subarna Tripathi, Amit K. Roy Chowdhury

The task of dynamic scene graph generation (SGG) from videos is complicated and challenging due to the inherent dynamics of a scene, temporal fluctuation of model predictions, and the long-tailed distribution of the visual relationships in addition to the already existing challenges in image-based SGG.

Graph Generation Unbiased Scene Graph Generation

Reconstruction guided Meta-learning for Few Shot Open Set Recognition

no code implementations31 Jul 2021 Sayak Nag, Dripta S. Raychaudhuri, Sujoy Paul, Amit K. Roy-Chowdhury

However, it is a critical task in many applications like environmental monitoring, where the number of labeled examples for each class is limited.

Classification Meta-Learning +2

Diversifying Support Vector Machines for Boosting using Kernel Perturbation: Applications to Class Imbalance and Small Disjuncts

1 code implementation22 Dec 2017 Shounak Datta, Sayak Nag, Sankha Subhra Mullick, Swagatam Das

The diversification (generating slightly varying separating discriminators) of Support Vector Machines (SVMs) for boosting has proven to be a challenge due to the strong learning nature of SVMs.

Decision Making

Boosting with Lexicographic Programming: Addressing Class Imbalance without Cost Tuning

1 code implementation31 Aug 2017 Shounak Datta, Sayak Nag, Swagatam Das

We then demonstrate how this insight can be used to attain a good compromise between the rare and abundant classes without having to resort to cost set tuning, which has long been the norm for imbalanced classification.

Classification General Classification +2

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