Archetypal Analysis: Three Case Studies

• Activity Number: 609
• Type: Contributed
• Date/Time: Wednesday, August 3, 2016 : 2:00 PM to 3:50 PM
• Sponsor: Section on Statistical Learning and Data Science
• Author(s): Anna Quach* and Adele Cutler
• Companies: and Utah State University
• Keywords: archetypal analysis ; unsupervised learning ; cluster analysis ; dimension reduction ; dietary patterns ; shape analysis

Abstract

Archetypal analysis was first introduced by Adele Cutler and Leo Breiman in 1994. In their paper they presented three examples: Swiss soldiers, air pollution, and Tokamak fusion. We extend the work with three additional case studies including nutrition data from the Cache County Memory and Aging Study, community attachment data provided by the Knight Foundation, and leaf shape data.