Author

Seung-Woo Han

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Preprint Aug 2026

External Sinkhole Attack Detection in Large-Scale WSNs Using Metaheuristic Feature Selection

Sinkhole attacks in large-scale wireless sensor networks (WSNs) pose a serious threat to network functionality. This paper presents a metaheuristic feature selection for sinkhole attack detection using the bee swarm optimization (BSO) algorithm. In an external sinkhole attack simulation with 2000 nodes deployed over a...

Seung-Woo Han, Sawako Kitagata, Ingon Chanpornpakdi et al. · 0 citations

#machine learning Preprint Sep 2026

TinyCardioUNet: IMU-to-ECG Translation with Graph-Encoded Inter-Axis Dependencies and Tensor Decomposition-Based Parameter Reduction

TinyCardioUNet is proposed, a lightweight UNet that uses all six IMU axes without prior channel selection, refines its bottleneck with a graph neural network that encodes inter-axis dependencies, and employs tensor decomposition with automatic variational Bayesian rank selection for parameter reduction.

Seung-Woo Han, Ingon Chanpornpakdi, Motoi Noda et al. · 0 citations