Entropy-based fuzzy clustering of interval-valued time series

被引:0
作者
Vitale, Vincenzina [1 ]
D'Urso, Pierpaolo [1 ]
De Giovanni, Livia [2 ]
Mattera, Raffaele [1 ]
机构
[1] Sapienza Univ Rome, Dept Social Sci & Econ, Piazzale Aldo Moro 5, I-00185 Rome, Italy
[2] Luiss Univ, Dept Polit Sci & Data Lab, Viale Romania 32, I-00197 Rome, Italy
关键词
Interval-valued time series; Fuzzy clustering; Dynamic time warping; FTSE-MIB index; ALGORITHMS; EXTENSION;
D O I
10.1007/s11634-024-00586-6
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
This paper proposes a fuzzy C-medoids-based clustering method with entropy regularization to solve the issue of grouping complex data as interval-valued time series. The dual nature of the data, that are both time-varying and interval-valued, needs to be considered and embedded into clustering techniques. In this work, a new dissimilarity measure, based on Dynamic Time Warping, is proposed. The performance of the new clustering procedure is evaluated through a simulation study and an application to financial time series.
引用
收藏
页数:27
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