Wu, R., Wang, B. and Xu, A. (2022) Functional Data Clustering Using Principal Curve Methods. Communications in Statistics-Theory and Methods, 51, 7264-7283.
https://doi.org/10.1080/03610926.2021.1872636

has been cited by the following article:

• TITLE: Unsupervised Functional Data Clustering Based on Adaptive Weights

  AUTHORS: Yutong Gao, Shuang Chen

  KEYWORDS: Functional Data, Unsupervised Learning Clustering, Functional Principal Component Analysis, Adaptive Weight

  JOURNAL NAME: Open Journal of Statistics, Vol.13 No.2, April 26, 2023

  ABSTRACT: In recent years, functional data has been widely used in finance, medicine, biology and other fields. The current clustering analysis can solve the problems in finite-dimensional space, but it is difficult to be directly used for the clustering of functional data. In this paper, we propose a new unsupervised clustering algorithm based on adaptive weights. In the absence of initialization parameter, we use entropy-type penalty terms and fuzzy partition matrix to find the optimal number of clusters. At the same time, we introduce a measure based on adaptive weights to reflect the difference in information content between different clustering metrics. Simulation experiments show that the proposed algorithm has higher purity than some algorithms.