用卫星数据和机器学习预测学校网络连接,助力低资源国家数字基建决策。
Predicting Internet Connectivity in Schools: A Feasibility Study Leveraging Multi-modal Data and Location Encoders in Low-Resource Settings
- 融合卫星影像与地面数据,用地理编码模型预测学校网络状态。
- 在博茨瓦纳和卢旺达均实现高准确率与低误报率,表现优于纯遥感方法。
- 成果开源共享,适合政策制定者与国际组织用于教育基建规划。
学校互联网连接对培养学生数字素养至关重要。为支持政府高效部署数字基础设施,需精准获取学校联网信息,但传统调研成本过高。开放源码地球观测(EO)数据结合机器学习,可替代昂贵的实地调查。本文构建了多模态、公开可用的卫星影像与调查数据集,采用最新地理感知位置编码技术,并首次应用欧洲空间局phi-lab地理感知基础模型,在博茨瓦纳和卢旺达预测学校互联网连接状况。结果表明,融合EO与地面辅助数据的机器学习模型在两国均取得最优性能,涵盖准确率、F1分数及假阳性率;通过基加利案例揭示了从太空预测网络连接的挑战。本研究展示了利用免费数据支持低资源地区数据驱动数字基建的可行性,并通过联合国儿童基金会与欧洲空间局phi-lab的合作,向社区提供清洗标注的数据集以供后续研究。
原文摘要 · Abstract (English)
Internet connectivity in schools is critical to provide students with the digital literary skills necessary to compete in modern economies. In order for governments to effectively implement digital infrastructure development in schools, accurate internet connectivity information is required. However, traditional survey-based methods can exceed the financial and capacity limits of governments. Open-source Earth Observation (EO) datasets have unlocked our ability to observe and understand socio-economic conditions on Earth from space, and in combination with Machine Learning (ML), can provide the tools to circumvent costly ground-based survey methods to support infrastructure development. In this paper, we present our work on school internet connectivity prediction using EO and ML. We detail the creation of our multi-modal, freely-available satellite imagery and survey information dataset, leverage the latest geographically-aware location encoders, and introduce the first results of using the new European Space Agency phi-lab geographically-aware foundational model to predict internet connectivity in Botswana and Rwanda. We find that ML with EO and ground-based auxiliary data yields the best performance in both countries, for accuracy, F1 score, and False Positive rates, and highlight the challenges of internet connectivity prediction from space with a case study in Kigali, Rwanda. Our work showcases a practical approach to support data-driven digital infrastructure development in low-resource settings, leveraging freely available information, and provide cleaned and labelled datasets for future studies to the community through a unique collaboration between UNICEF and the European Space Agency phi-lab.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。