Search Results for author: Amit Roy

Found 5 papers, 5 papers with code

GAD-NR: Graph Anomaly Detection via Neighborhood Reconstruction

1 code implementation2 Jun 2023 Amit Roy, Juan Shu, Jia Li, Carl Yang, Olivier Elshocht, Jeroen Smeets, Pan Li

Graph Anomaly Detection (GAD) is a technique used to identify abnormal nodes within graphs, finding applications in network security, fraud detection, social media spam detection, and various other domains.

Fraud Detection Graph Anomaly Detection +1

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

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