Search Results for author: Shuvendu Roy

Found 12 papers, 5 papers with code

Contrastive Learning of View-Invariant Representations for Facial Expressions Recognition

no code implementations12 Nov 2023 Shuvendu Roy, Ali Etemad

ViewFX learns view-invariant features of expression using a proposed self-supervised contrastive loss which brings together different views of the same subject with a particular expression in the embedding space.

Contrastive Learning Facial Expression Recognition +1

Active Learning with Contrastive Pre-training for Facial Expression Recognition

1 code implementation6 Jul 2023 Shuvendu Roy, Ali Etemad

Even though some prior works have focused on reducing the need for large amounts of labelled data using different unsupervised methods, another promising approach called active learning is barely explored in the context of FER.

Active Learning Facial Expression Recognition +1

Scaling Up Semi-supervised Learning with Unconstrained Unlabelled Data

1 code implementation2 Jun 2023 Shuvendu Roy, Ali Etemad

We propose UnMixMatch, a semi-supervised learning framework which can learn effective representations from unconstrained unlabelled data in order to scale up performance.

Network Pruning Semi-Supervised Image Classification

Consistency-guided Prompt Learning for Vision-Language Models

2 code implementations1 Jun 2023 Shuvendu Roy, Ali Etemad

Our approach improves the generalization of large foundation models when fine-tuned on downstream tasks in a few-shot setting.

Domain Generalization Few-Shot Learning +1

Impact of Labelled Set Selection and Supervision Policies on Semi-supervised Learning

no code implementations27 Nov 2022 Shuvendu Roy, Ali Etemad

All these labelled samples are then used along with the unlabelled data throughout the training process.

Representation Learning

Temporal Contrastive Learning with Curriculum

no code implementations2 Sep 2022 Shuvendu Roy, Ali Etemad

We present ConCur, a contrastive video representation learning method that uses curriculum learning to impose a dynamic sampling strategy in contrastive training.

Action Recognition Contrastive Learning +4

Analysis of Semi-Supervised Methods for Facial Expression Recognition

2 code implementations31 Jul 2022 Shuvendu Roy, Ali Etemad

To reduce the reliance of deep neural solutions on labeled data, state-of-the-art semi-supervised methods have been proposed in the literature.

Facial Expression Recognition Facial Expression Recognition (FER) +1

Spatiotemporal Contrastive Learning of Facial Expressions in Videos

no code implementations6 Aug 2021 Shuvendu Roy, Ali Etemad

Experiments are performed on the Oulu-CASIA dataset and the performance is compared to other works in FER.

Contrastive Learning Facial Expression Recognition +1

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