MOSCOW, Russia, 2017-Nov-01 — /EPR Retail News/ — X5 Retail Group N.V. ("X5" or the "Company"), a leading Russian food retailer (LSE ticker: "FIVE"), has introduced machine learning technology to improve targeted marketing at its Perekrestok supermarket chain and to develop personalised offers for all members of the Perekrestok Club loyalty programme. Machine learning is…