Search Results for author: Amin Ahsan Ali

Found 14 papers, 6 papers with code

Morphological Classification of Radio Galaxies using Semi-Supervised Group Equivariant CNNs

no code implementations31 May 2023 Mir Sazzat Hossain, Sugandha Roy, K. M. B. Asad, Arshad Momen, Amin Ahsan Ali, M Ashraful Amin, A. K. M. Mahbubur Rahman

Out of the estimated few trillion galaxies, only around a million have been detected through radio frequencies, and only a tiny fraction, approximately a thousand, have been manually classified.

Contrastive Learning Representation Learning

Variational Stacked Local Attention Networks for Diverse Video Captioning

no code implementations4 Jan 2022 Tonmoay Deb, Akib Sadmanee, Kishor Kumar Bhaumik, Amin Ahsan Ali, M Ashraful Amin, A K M Mahbubur Rahman

However, growing model complexity for visual data encourages more explicit feature interaction for fine-grained information, which is currently absent in the video captioning domain.

Video Captioning

Deep Dive into Semi-Supervised ELBO for Improving Classification Performance

no code implementations29 Aug 2021 Fahim Faisal Niloy, M. Ashraful Amin, AKM Mahbubur Rahman, Amin Ahsan Ali

Experiments on a diverse datasets verify that our method can be used to improve the classification performance of existing VAE based semi-supervised models.

Classification Density Estimation +1

A Novel Disaster Image Dataset and Characteristics Analysis using Attention Model

no code implementations2 Jul 2021 Fahim Faisal Niloy, Arif, Abu Bakar Siddik Nayem, Anis Sarker, Ovi Paul, M. Ashraful Amin, Amin Ahsan Ali, Moinul Islam Zaber, AKM Mahbubur Rahman

In this research, we have carefully accumulated a relatively challenging dataset that contains images collected from various sources for three different disasters: fire, water and land.

Node Embedding using Mutual Information and Self-Supervision based Bi-level Aggregation

1 code implementation27 Apr 2021 Kashob Kumar Roy, Amit Roy, A K M Mahbubur Rahman, M Ashraful Amin, Amin Ahsan Ali

Graph Neural Networks (GNNs) learn low dimensional representations of nodes by aggregating information from their neighborhood in graphs.

Node Clustering

Unified Spatio-Temporal Modeling for Traffic Forecasting using Graph Neural Network

1 code implementation26 Apr 2021 Amit Roy, Kashob Kumar Roy, Amin Ahsan Ali, M Ashraful Amin, A K M Mahbubur Rahman

However, most state-of-the-art approaches have designed spatial-only (e. g. Graph Neural Networks) and temporal-only (e. g. Recurrent Neural Networks) modules to separately extract spatial and temporal features.

Traffic Prediction

SST-GNN: Simplified Spatio-temporal Traffic forecasting model using Graph Neural Network

1 code implementation31 Mar 2021 Amit Roy, Kashob Kumar Roy, Amin Ahsan Ali, M Ashraful Amin, A K M Mahbubur Rahman

Most of the recent works employed graph neural networks(GNN) with multiple layers to capture the spatial dependency.

Traffic Prediction

Hierarchical Self Attention Based Autoencoder for Open-Set Human Activity Recognition

1 code implementation7 Mar 2021 M Tanjid Hasan Tonmoy, Saif Mahmud, A K M Mahbubur Rahman, M Ashraful Amin, Amin Ahsan Ali

Wearable sensor based human activity recognition is a challenging problem due to difficulty in modeling spatial and temporal dependencies of sensor signals.

Human Activity Recognition Open Set Learning

Human Activity Recognition from Wearable Sensor Data Using Self-Attention

2 code implementations17 Mar 2020 Saif Mahmud, M Tanjid Hasan Tonmoy, Kishor Kumar Bhaumik, A K M Mahbubur Rahman, M Ashraful Amin, Mohammad Shoyaib, Muhammad Asif Hossain Khan, Amin Ahsan Ali

In this regard, the existing recurrent or convolutional or their hybrid models for activity recognition struggle to capture spatio-temporal context from the feature space of sensor reading sequence.

Human Activity Recognition Time Series +1

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