# Improving Human Activity Recognition for Sparse Radar Point Clouds: A Graph Neural Network Model with Pre-Trained 3D Human-Joint Coordinates

> Research article (Applied Sciences, 2022) · cited 27× · AI/ML

**Wikidata**: [openalex:W4213253019](https://www.wikidata.org/wiki/openalex:W4213253019)  
**Source**: https://4ort.xyz/entity/improving-human-activity-recognition-for-sparse-radar-point-clouds-a-graph-neural-network-model-with-pre-trained-3d-huma