translation.en: They're all kinds of ways we can use massively collected data to create sensor networks to follow the population, understand what's happening in the population, and intervene in the population for the better.
translation.zh: 有很多种不同的方法我们能使用大量收集的数据 来建立传感网络 跟踪人群， 了解在人群中正在发生的事件， 从而可以更好的介入。