Catalina turns laser focus to data as it personalizes the shopping experience

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    Catalina, a St. Petersburg-based digital marketing firm, knows what you like to buy and why you like to buy it.

    The company, once known best for the printed coupons handed to a shopper at check-out in the grocery store or drug store, has transformed into a big data operation, with two years of purchase history on 650 million shoppers.