# Integrating metro passenger flow data to improve the classification of urban functional regions using a heterogeneous graph neural network

> Research article (International Journal of Digital Earth, 2024) · cited 12× · AI/ML

**Wikidata**: [openalex:W4405764821](https://www.wikidata.org/wiki/openalex:W4405764821)  
**Source**: https://4ort.xyz/entity/integrating-metro-passenger-flow-data-to-improve-the-classification-of-urban-functional-regions-using-a-heterogeneous-gr