Aldi Aldi Aldi (stylised as ALDI) is the common brand of two German family owned discount supermarket chains with over 10,000 stores in 20 countries, and an estimated combined turnover of more than €50 billion. Based in Germany, the chain was founded by brothers Karl and Theo Albrecht in 1946 when they took over their mother's store in Essen, which had been in operation since 1913. The business was split into two separate groups in 1960, that later became Aldi Nord, headquartered in Essen, and Aldi Süd, headquartered in Mülheim. In 1962, they introduced the name Aldi (a syllabic abbreviation for
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.