Clustering multivariate functional data with phase variation

Park, Juhyun and Ahn, Jeongyoun (2017) Clustering multivariate functional data with phase variation. Biometrics, 73 (1). pp. 324-333. ISSN 0006-341X

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When functional data come as multiple curves per subject, characterizing the source of variations is not a trivial problem. The complexity of the problem goes deeper when there is phase variation in addition to amplitude variation. We consider clustering problem with multivariate functional data that have phase variations among the functional variables. We propose a conditional subject-specific warping framework in order to extract relevant features for clustering. Using multivariate growth curves of various parts of the body as a motivating example, we demonstrate the effectiveness of the proposed approach. The found clusters have individuals who show different relative growth patterns among different parts of the body.

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Journal Article
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This is the peer reviewed version of the following article: Park, J. and Ahn, J. (2017), Clustering multivariate functional data with phase variation. Biom, 73: 324–333. doi:10.1111/biom.12546 which has been published in final form at This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Uncontrolled Keywords:
?? curve alignmentfunctional clusteringgrowth curvesmultivariate functional dataphase variationagricultural and biological sciences(all)biochemistry, genetics and molecular biology(all)applied mathematicsstatistics and probabilityimmunology and microbiology( ??
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10 Jun 2016 15:36
Last Modified:
28 Jun 2024 23:46