# Joint U-Nets with hierarchical graph structure and sparse Transformer for hyperspectral image classification

> Research article (Expert Systems with Applications, 2025) · cited 11× · AI/ML

**Wikidata**: [openalex:W4408211730](https://www.wikidata.org/wiki/openalex:W4408211730)  
**Source**: https://4ort.xyz/entity/joint-u-nets-with-hierarchical-graph-structure-and-sparse-transformer-for-hyperspectral-image-classification