Results 61 to 70 of about 303,598 (207)

Clustering of streaming time series is meaningless [PDF]

open access: yesProceedings of the 8th ACM SIGMOD workshop on Research issues in data mining and knowledge discovery - DMKD '03, 2003
Time series data is perhaps the most frequently encountered type of data examined by the data mining community. Clustering is perhaps the most frequently used data mining algorithm, being useful in it's own right as an exploratory technique, and also as a subroutine in more complex data mining algorithms such as rule discovery, indexing, summarization,
Jessica Lin 0001   +2 more
openaire   +1 more source

A Fast Weighted Fuzzy C-Medoids Clustering for Time Series Data Based on P-Splines

open access: yesSensors, 2022
The rapid growth of digital information has produced massive amounts of time series data on rich features and most time series data are noisy and contain some outlier samples, which leads to a decline in the clustering effect. To efficiently discover the
Jiucheng Xu   +4 more
doaj   +1 more source

Special Issue on ‘Time series clustering’ [PDF]

open access: yesAdvances in Data Analysis and Classification, 2011
There exists a great variety of clustering methods for multidimensional data points or dissimilarity data, they are standard tools in many statistical packages or data mining systems. More complex data types require special approaches, either by a reduction to classical cases by suitable preprocessing steps, by specifying appropriate dissimilarity ...
openaire   +1 more source

Graph-based two-level clustering for electric vehicle usage patterns

open access: yesEnergy and AI
Electric vehicles (EVs) continue to gain popularity over internal combustion vehicles, but driving and charging an EV is a fundamentally different experience. EV usage patterns include features such as charging speed, battery state of charge, and battery
Dhanashree Balaram   +5 more
doaj   +1 more source

Feature-Driven Time Series Clustering

open access: yes, 2021
International audienceThe problem of clustering time series has several applications in real-life contexts, especially in data science and data analytics pipelines.
Ng, Raymond   +2 more
core   +1 more source

In-Database Time Series Clustering

open access: yesProceedings of the ACM on Management of Data
Time series data are often clustered repeatedly across various time ranges to mine frequent subsequence patterns from different periods, which could further support downstream applications. Existing state-of-the-art (SOTA) time series clustering method, such as K-Shape, can proficiently cluster time series data referring to their shapes.
Yunxiang Su, Kenny Ye Liang, Shaoxu Song
openaire   +1 more source

Partial mixture model for tight clustering of gene expression time-course [PDF]

open access: yes, 2008
Background: Tight clustering arose recently from a desire to obtain tighter and potentially more informative clusters in gene expression studies. Scattered genes with relatively loose correlations should be excluded from the clusters.
Li Chang-Tsun   +8 more
core   +1 more source

Time Series Clustering Based on Singularity [PDF]

open access: yes, 2017
With relevant theories on time series clustering, the thesis makes research into similarity clustering process of time series from the perspective of singularity and proposes the time series clustering based on singularity applying K-means and DBScan ...
Ding, Xueli, Chang, Dan, Ma, Yunfang
core   +2 more sources

Multivariate Time Series Density Clustering Algorithm Using Shapelet Space [PDF]

open access: yesJisuanji kexue yu tansuo
Multivariate time series clustering has become an important research topic in the task of time series analysis. Compared with univariate time series, the research of multivariate time series is more complex and difficult.
SHENG Jinchao, DU Mingjing, SUN Jiarui, LI Yurui
doaj   +1 more source

Guided conjugate Bayesian clustering for uncovering rhythmically expressed genes [PDF]

open access: yes, 2006
Background: An increasing number of microarray experiments produce time series of expression levels for many genes. Some recent clustering algorithms respect the time ordering of the data and are, importantly, extremely fast. The focus of this paper is
Millar, A. J.   +3 more
core  

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