In a recent paper in PNAS, Wang et al. (1) investigate the key question of urban isolation in light of daily mobility. Urban isolation may actually be mitigated by individuals spending much of their everyday lives in neighborhoods where social composition and urban opportunities widely diverge from their home neighborhoods. From a large dataset composed of 128 million geotagged micromessages called tweets, sent by 392,000 Twitter users living in the 50 most populous American cities, the authors overcome the pervasive spatial assumption that social interactions are limited to home neighborhoods. However, they made one temporal assumption that merits further discussion. They classified neighborhoods into …

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来自Twitter数据的城市隔离和日间邻里社会组成[社会科学]

在PNAS的最新论文中，Wang等人。（1）根据日常出行情况调查城市隔离的关键问题。实际上，个人的大部分生活时间都花在社区的组成和城市机会与他们的邻里大相径庭的社区中，这实际上可以缓解城市的孤立感。作者来自生活在美国50个人口最多的城市中的392,000个Twitter用户发送的，由1.28亿个带有地理标签的微消息（称为推文）组成的大型数据集，作者克服了普遍的空间假设，即社会互动仅限于家庭社区。但是，他们做出了一个暂时的假设，值得进一步讨论。他们将社区划分为……