约翰洛根（John Logan ）和布莱恩斯特尔茨（Brian Stults ）发明了一个相异指数，为了消除种族隔离，一组人必须搬家，与陌生人为邻，然后用相异指数来确定这组人中黑人邻居的百分比- 想一下公共校车的例子。
John Logan and Brian Stults created a dissimilarity index, which identifies the percentage of one group that would have to move to a different neighborhood to eliminate segregation -- think busing.
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