Nan Xia

Identifying urban villages using graph neural network and transfer learning in Southern Jiangsu, China

China’s rapid urbanization has led to the emergence of urban villages (UVs), whose governance is crucial for urban quality and built environment management. However, conventional identification methods rely on high-resolution remote sensing images and extensive localized annotate...

Exploring non-linear influences of urban environment on urban vitality using multi-source geographic big data

Urban vitality (UV) is a crucial indicator of the prosperity, livability, and sustainability of cities, yet its complex and non-linear relationship with the urban environment (UE) remains underexplored. Therefore, taking Nanjing as the study area, this study integrated multi-sour...