Space-aware Socioeconomic Indicator Inference with Heterogeneous Graphs
This addresses the costly acquisition of socioeconomic indicators for urban management and sustainability, offering a novel approach to handle complex spatial variations.
The paper tackles the problem of inferring global socioeconomic indicators from limited regional samples by proposing GeoHG, a space-aware method using heterogeneous graphs, which achieves an R^2 score over 0.8 under 95% data scarcity.
Regional socioeconomic indicators are critical across various domains, yet their acquisition can be costly. Inferring global socioeconomic indicators from a limited number of regional samples is essential for enhancing management and sustainability in urban areas and human settlements. Current inference methods typically rely on spatial interpolation based on the assumption of spatial continuity, which does not adequately address the complex variations present within regional spaces. In this paper, we present GeoHG, the first space-aware socioeconomic indicator inference method that utilizes a heterogeneous graph-based structure to represent geospace for non-continuous inference. Extensive experiments demonstrate the effectiveness of GeoHG in comparison to existing methods, achieving an $R^2$ score exceeding 0.8 under extreme data scarcity with a masked ratio of 95\%.