REMA 1000 way, a strategy not unique to REMA. It is still REMA 1000's official policy of not letting cost-saving damage the basic idea of simplicity (in accordance with the slogan). Wide corridors and informative signs are therefore present to simplify the shopping. Odd Reitan, the founder of the company, opened the first REMA supermarket in Trondheim, Norway, 15 February 1979. Originally some stores were named 'REMA 500', indicating its number of food variety (later to be expanded). The owners had recently visited Germany where they had been impressed by the Albrecht brothers (Theo and Karl) supermarket chain ALDI's success. They wanted
Perekrestok (supermarket chain) connected. In November 2017, X5 introduced machine learning to bolster targeted marketing at the Perekrestok supermarket chain, and developed personalised offers for all members of the Perekrestok Club loyalty program. The company leverages machine learning to group customers into segments based on common features and create offers for them. The system analyses groups of customers and designs personalised marketing campaigns based on demographic and several hundred behavioural factors, such as: frequency of purchases and ticket size, customer preferences, lifestyle fundamentals, acceptable price levels, favourite product categories and preferred shopping hours. Customer sensitivity to offers is predicted using various analytical models.