http://www.forbes.com/sites/kashmirhill/2012/02/16/how-target-figured-out-a-teen-girl-was-pregnant-before-her-father-did/


요약 : 10대 소녀가 임신을 했는데 아버지보다 백화점이 먼저 알아 냄...
구매 패턴을 파악해 임산부라는 결론을 내고 구입 추천 목록을 집으로 보냈다고...