Publication Type
Journal Article
Version
acceptedVersion
Publication Date
10-2024
Abstract
Representation learning has been instrumental in the success of machine learning, offering compact and performant data representations for diverse downstream tasks. In the spatial domain, it has been pivotal in extracting latent patterns from various data types, including points, polylines, polygons, and networked structures. However, existing approaches often fall short of explicitly capturing both semantic and spatial information, relying on proxies and synthetic features. This article presents GeoNN, a novel graph neural network-based model designed to learn spatially-aware embeddings for geospatial entities. GeoNN leverages edge features generated from geodesic functions, dynamically selecting relevant features based on relative locations. It introduces both transductive (GeoNN-T) and inductive (GeoNN-I) models, ensuring effective encoding of geospatial features and scalability with entity changes. Extensive experiments demonstrate GeoNN's effectiveness in location-sensitive superpixel-based graphs and real-world points of interest, outperforming baselines across various evaluation measures.
Keywords
Geographic information systems, Data encoding and canonicalization, Data mining, Neural networks, Representation learning, Geospatial, Location sensitivity
Discipline
Artificial Intelligence and Robotics | Numerical Analysis and Scientific Computing
Research Areas
Data Science and Engineering
Publication
ACM Transactions on Spatial Algorithms and Systems
Volume
10
Issue
4
First Page
1
Last Page
31
ISSN
2374-0353
Identifier
10.1145/3663474
Publisher
Association for Computing Machinery (ACM)
Citation
LEE, Ween Jiann and LAUW, Hady Wirawan.
Latent representation learning for geospatial entities. (2024). ACM Transactions on Spatial Algorithms and Systems. 10, (4), 1-31.
Available at: https://ink.library.smu.edu.sg/sis_research/9843
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1145/3663474
Included in
Artificial Intelligence and Robotics Commons, Numerical Analysis and Scientific Computing Commons