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Activity Number: 501 - Time Series Methods
Type: Contributed
Date/Time: Thursday, August 6, 2020 : 10:00 AM to 2:00 PM
Sponsor: Section on Statistical Learning and Data Science
Abstract #313481
Title: Completion of Partially Observed Curves with Application to Classification of Bovid Teeth
Author(s): Gregory Matthews* and Ofer Harel and George Thiruvathukal and Juliet Brophy and Sebastian Kurtek and Karthik Bharath
Companies: Loyola University Chicago and University of Connecticut and Loyola University Chicago and Louisiana State University and The Ohio State University and University of Nottingham
Keywords: shape analysis ; functional data analysis; missing data

Statistical shape analysis of curves is well-developed when curves are fully observed. This work considers partially observed curves and develops methods for curve completion or imputation by leveraging tools from the statistical analysis of shape of fully observed curves, which enables sensible curve completions. On a dataset containing partially observed bovid teeth arising from a biological anthropology application, the method is implemented and classification of the completed teeth is carried out based on a shape distance on the set of curves.

Authors who are presenting talks have a * after their name.

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