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of a stolen vehicle. in all, nearly 100 factors were put into a data base and analyzed these included physical characteristics of the vehicle and vehicle driving behavior importantly, nothing about the driver s racial profile these elements are called enrichment factors, essentially hallmarks of a stolen vehicle. for example, a missing license plate, broken window, no lights, and abnormal lane changes. as the theory goes, the more enrichment factors, the more likely it is a stolen car. when we look at a vehicle like this, you look at the fact there are no plates on the vehicle. their driving was erratic and inappropriate. that is another factor that made them realize it and then when they tried to initiate a traffic stop it ran. it eluded. reporter: right. so stolen car. reporter: it all adds up. correct correct. then the driver also has a warrant for his arrest. reporter: to better understand the numbers portland police turned to an unlikely partner cancer researchers at

Josef newgardenData baseEnrichment factorsLane changesLicense plateTraffic stop it ranCancer researchersData scienceBig dataOregon health sciences university