一个高度细化的临时迁移数据集,来自塞内加尔的手机数据
Paul Blanchard1,2, Stefania Rubrichi3
1Institut de Recherche pour le Développement, Paris, 75010, France. blanchap@tcd.ie.
Scientific data
|June 20, 2025
概括
这项研究引入了一个新的数据集,使用手机数据来追踪塞内加尔的临时移民. 它提供了对移民模式的详细见解,这对于了解发展中国家的社会经济挑战至关重要.
科学领域:
- 社会科学 社会科学 社会科学
- 计算机科学 计算机科学
- 人口统计学 人口统计学
背景情况:
- 了解临时移民对于发展挑战至关重要,但数据稀缺,特别是在撒哈拉以南非洲,阻碍了有效的政策.
- 传统的调查很难捕捉临时人口流动的细微差别,限制了可靠的数据采集.
研究的目的:
- 通过使用手机数据,引入一套新的,开放的数据集,以捕捉塞内加尔的临时移民.
- 为了提供前所未有的时空细节在20至180天之间的移动的迁移流和库存.
- 提出用于检测和聚合从数字痕迹中临时迁移的方法论工具.
主要方法:
- 利用匿名的手机数据来识别个人的移动模式.
- 开发用于在数字痕迹中检测临时迁移事件的算法方法.
- 汇总个别轨迹以生成迁移流和库存统计数据.
主要成果:
- 创建一个详细的数据集,涵盖了塞内加尔的151个地点,从2013年到2015年.
- 暂时迁移流和库存的量化,半月一次的细分化.
- 对其他数字痕迹数据集的方法适应性的证明.
结论:
- 移动电话数据为了解临时迁移动态提供了强大的工具.
- 开发的方法允许从数字痕迹创建可靠的移民统计数据.
- 这种方法对发展中国家的政策和研究产生了重大影响.
相关概念视频
Cell Migration
5.2K
Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
5.2K
Selected Data About Geographic Locations
72
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
72
Migration
8.1K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
8.1K


