Search Results for author: Saptarshi Sinha

Found 7 papers, 6 papers with code

Every Shot Counts: Using Exemplars for Repetition Counting in Videos

1 code implementation26 Mar 2024 Saptarshi Sinha, Alexandros Stergiou, Dima Damen

We propose an exemplar-based approach that discovers visual correspondence of video exemplars across repetitions within target videos.

MILA: Memory-Based Instance-Level Adaptation for Cross-Domain Object Detection

1 code implementation3 Sep 2023 Onkar Krishna, Hiroki Ohashi, Saptarshi Sinha

A source sample is considered suitable if it differs from the target sample only in domain, without differences in unimportant characteristics such as orientation and color, which can hinder the model's focus on aligning the domain difference.

object-detection Object Detection +1

Use Your Head: Improving Long-Tail Video Recognition

1 code implementation CVPR 2023 Toby Perrett, Saptarshi Sinha, Tilo Burghardt, Majid Mirmehdi, Dima Damen

We demonstrate that, unlike naturally-collected video datasets and existing long-tail image benchmarks, current video benchmarks fall short on multiple long-tailed properties.

Video Recognition

Difficulty-Net: Learning to Predict Difficulty for Long-Tailed Recognition

1 code implementation7 Sep 2022 Saptarshi Sinha, Hiroki Ohashi

Long-tailed datasets, where head classes comprise much more training samples than tail classes, cause recognition models to get biased towards the head classes.

Long-tail Learning Meta-Learning

Class-Difficulty Based Methods for Long-Tailed Visual Recognition

1 code implementation29 Jul 2022 Saptarshi Sinha, Hiroki Ohashi, Katsuyuki Nakamura

Further, we use the difficulty measures of each class to design a novel weighted loss technique called `class-wise difficulty based weighted (CDB-W) loss' and a novel data sampling technique called `class-wise difficulty based sampling (CDB-S)'.

Action Classification Image Classification +4

Scale-free networks may not necessarily witness cooperation

no code implementations4 Jan 2021 Deep Nath, Saptarshi Sinha, Soumen Roy

Networks with a scale-free degree distribution are widely thought to promote cooperation in various games.

Physics and Society Statistical Mechanics Social and Information Networks Populations and Evolution

Class-Wise Difficulty-Balanced Loss for Solving Class-Imbalance

1 code implementation5 Oct 2020 Saptarshi Sinha, Hiroki Ohashi, Katsuyuki Nakamura

We claim that the 'difficulty' of a class as perceived by the model is more important to determine the weighting.

Long-tail Learning

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