The aftershocks of crime
犯罪余震
An idea borrowed from seismology may help topredict criminal activity.
从地震学上获取的灵感或许能预测犯罪行为。
LOS ANGELES is one of the most under-policed cities in America.
洛杉矶是美国警力最不足的城市之一,
With a mere 26 officers for every 10,000 residents, the Los Angeles Police Department needsall the help it can get.
每一万个市民只分配了26名警察,因此洛杉矶警局急需各方支援。
That help may be at hand, with a modification of technology used to predict another typeof threat that the city is prone to: the aftershocks from earthquakes. Big earthquakes areunpredictable.
支援也许就近在咫尺,只要将一项技术修改一下便可。这项技术原本是用来预测余震的这个城市很容易受到的另一种灾难。
Once they have happened, however, they are usually followed by further tremors, and thepattern of these is tractable.
大地震是无法预测的,但是大地震发生后随之而来的余震模式却是可以掌控的。
George Mohler, a mathematician at Santa Clara University, in California, thinks somethingsimilar is true of crimes.
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