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Time series clustering of COVID-19 pandemic-related data [PDF]

open access: yesData Science and Management, 2023
The COVID-19 pandemic continues to impact daily life worldwide. It would be helpful and valuable if we could obtain valid information from the COVID-19 pandemic sequential data itself for characterizing the pandemic.
Zhixue Luo, Lin Zhang, Na Liu, Ye Wu
doaj   +2 more sources

Lag penalized weighted correlation for time series clustering [PDF]

open access: yesBMC Bioinformatics, 2020
Background The similarity or distance measure used for clustering can generate intuitive and interpretable clusters when it is tailored to the unique characteristics of the data.
Thevaa Chandereng, Anthony Gitter
doaj   +2 more sources

A Review of Subsequence Time Series Clustering [PDF]

open access: yesThe Scientific World Journal, 2014
Clustering of subsequence time series remains an open issue in time series clustering. Subsequence time series clustering is used in different fields, such as e-commerce, outlier detection, speech recognition, biological systems, DNA recognition, and ...
Seyedjamal Zolhavarieh   +2 more
doaj   +2 more sources

Measuring Extremal Clustering in Time Series

open access: yesEngineering Proceedings, 2023
The propensity of data to cluster at extreme values is important for risk assessment. For example, heavy rain over time leads to catastrophic floods. The extremal index is a measure of Extreme Values Theory that allows measurement of the degree of high ...
Marta Ferreira
doaj   +1 more source

Clustering time series based on dependence structure. [PDF]

open access: yesPLoS ONE, 2018
The clustering of time series has attracted growing research interest in recent years. The most popular clustering methods assume that the time series are only linearly dependent but this assumption usually fails in practice. To overcome this limitation,
Beibei Zhang, Baiguo An
doaj   +1 more source

Efficient Time Series Clustering by Minimizing Dynamic Time Warping Utilization

open access: yesIEEE Access, 2021
Dynamic Time Warping (DTW) is a widely used distance measurement in time series clustering. DTW distance is invariant to time series phase perturbations but has a quadratic complexity.
Borui Cai   +4 more
doaj   +1 more source

Satellite Image Time Series Clustering via Time Adaptive Optimal Transport

open access: yesRemote Sensing, 2021
Satellite Image Time Series (SITS) have become more accessible in recent years and SITS analysis has attracted increasing research interest. Given that labeled SITS training samples are time and effort consuming to acquire, clustering or unsupervised ...
Zheng Zhang   +3 more
doaj   +1 more source

Active and Dynamic Approaches for Clustering Time Dependent Information: Lag Target Time Series Clustering and Multi-Factor Time Series Clustering

open access: yesJournal of Statistical Theory and Applications (JSTA), 2018
One of data mining schemes in statistics is clustering panel data such as longitudinal data and time series data. Classical approaches to cluster such time dependent information do not properly count time dependencies among objects we are interested to ...
Doo Young Kim, Chris P. Tsokos
doaj   +1 more source

A benchmark study on time series clustering

open access: yesMachine Learning with Applications, 2020
This paper presents the first time series clustering benchmark utilizing all time series datasets currently available in the University of California Riverside (UCR) archive — the state of the art repository of time series data.
Ali Javed, Byung Suk Lee, Donna M. Rizzo
doaj   +1 more source

Dynamic Matrix Clustering Method for Time Series Events

open access: yesJisuanji kexue yu tansuo, 2021
Time series events clustering is the basis of studying the classification of events and mining analysis. Most of the existing clustering methods directly aim at continuous events with time attribute and complex structure, but the transformation of ...
MA Ruiqiang, SONG Baoyan, DING Linlin, WANG Junlu
doaj   +1 more source

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