Tensorial Principal Component Analysis in Detecting Temporal Trajectories of Purchase Patterns in Loyalty Card Data: Retrospective Cohort Study

• Main Authors: Reija Autio (Author), Joni Virta (Author), Klaus Nordhausen (Author), Mikael Fogelholm (Author), Maijaliisa Erkkola (Author), Jaakko Nevalainen (Author)
• Format: Book
• Published: JMIR Publications, 2023-12-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

BackgroundLoyalty card data automatically collected by retailers provide an excellent source for evaluating health-related purchase behavior of customers. The data comprise information on every grocery purchase, including expenditures on product groups and the time of purchase for each customer. Suc...