Theo Albrecht save money." Theodor Albrecht died 24 July 2010, in his home town of Essen, Germany. Theo Albrecht Theodor Paul "Theo" Albrecht (; 28 March 1922 – 24 July 2010) was a German entrepreneur, who in 2010 was ranked by Forbes as the 31st richest person in the world, with a net worth of $16.7 billion. He owned and was the CEO of the Aldi Nord discount supermarket chain. In the US he owned the Trader Joe's specialty grocery store chain. His brother Karl Albrecht owned the Aldi Süd discount supermarket chain. The two chains originally were a single family enterprise
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.