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一种基于用户生成数据的方法,用于增强撒哈拉以南非洲地区金融服务的位置预测。

A user-generated data based approach to enhancing location prediction of financial services in sub-Saharan Africa.

作者信息

McKenzie Grant, Slind R Todd

机构信息

Department of Geography, McGill University, Canada.

Spatial Development International, Seattle, USA.

出版信息

Appl Geogr. 2019 Apr;105:25-36. doi: 10.1016/j.apgeog.2019.02.005.

Abstract

The recent increase in user-generated content and social media adoption in developing countries offers an unprecedented opportunity to better understand the accessibility and spatial distribution of financial services in sub-Saharan Africa. Financial inclusion has been identified as a priority by multiple agencies in the region and on-the-ground efforts are currently underway to identify previously unknown financial access points in numerous developing African countries. Existing techniques for estimating the location of these access points rely on spatial analysis of often outdated or unsuitable publicly available datasets such as population density, road networks, etc., as well as expensive and time consuming surveys of locals in the region. In this work we propose an approach to augment existing spatial data analysis techniques through the inclusion of user-generated geo-content and geo-social media data. Through a comparison of standard regression models and machine learning techniques, this work proposes the use of alternative data sources to build prediction models for identifying financial access locations in countries where current estimation models are insufficient. With a better understanding of geospatial distribution patterns this work aims at reducing data acquisition costs and providing decision makers with critical data more quickly and efficiently. Finally, we present a mobile application built on the outcomes of this analysis that is currently being used to better inform on-the-ground data collection efforts.

摘要

发展中国家用户生成内容和社交媒体应用的近期增长,为更好地了解撒哈拉以南非洲金融服务的可及性和空间分布提供了前所未有的机遇。金融包容性已被该地区多个机构确定为优先事项,目前正在开展实地工作,以确定众多非洲发展中国家以前未知的金融接入点。用于估计这些接入点位置的现有技术,依赖于对诸如人口密度、道路网络等往往过时或不合适的公开可用数据集的空间分析,以及对该地区当地人进行的昂贵且耗时的调查。在这项工作中,我们提出一种方法,通过纳入用户生成的地理内容和地理社交媒体数据来增强现有的空间数据分析技术。通过比较标准回归模型和机器学习技术,这项工作建议使用替代数据源来构建预测模型,以识别当前估计模型不足的国家中的金融接入位置。通过更好地理解地理空间分布模式,这项工作旨在降低数据获取成本,并更快、更有效地为决策者提供关键数据。最后,我们展示了一个基于此分析结果构建的移动应用程序,目前该应用程序正用于更好地为实地数据收集工作提供信息。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/195e/6472520/2efe34f56594/gr1.jpg

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