Introducing the contrast profile: a novel time series primitive that allows real world classification
Introducing the contrast profile: a novel time series primitive that allows real world classification
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介绍对比度配置文件:一种新颖的时间序列原语,允许现实世界分类
DOI:
10.1007/s10618-022-00824-5
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发表时间:
2022
影响因子:
4.8
通讯作者:
Ryan Mercer, Sara Alaee
中科院分区:
文献类型:
--
作者:
Ryan Mercer, Sara Alaee
Time series data remains a perennially important datatype considered in data mining. In the last decade there has been an increasing realization that time series data can be best understood by reasoning about time series subsequences on the basis of their similarity to other subsequences: the two most familiar such time series concepts beingmotifsanddiscords. Time series motifs refer to two particularly close subsequences, whereas time series discords indicate subsequences that are far from their nearest neighbors. However, we argue that it can sometimes be useful to simultaneously reason about a subsequence’s closeness to certain data and its distance to other data. In this work we introduce a novel primitive called the Contrast Profile that allows us to efficiently compute such a definition in a principled way. As we will show, the Contrast Profile has many downstream uses, including anomaly detection, data exploration, and preprocessing unstructured data for classification. We demonstrate the utility of the Contrast Profile by showing how it allows end-to-end classification in datasets with tens of billions of datapoints, and how it can be used to explore datasets and reveal subtle patterns that might otherwise escape our attention. Moreover, we demonstrate the generality of the Contrast Profile by presenting detailed case studies in domains as diverse as seismology, animal behavior, and cardiology.
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DOI:
10.1109/icdm50108.2020.00147
发表时间:
2020
期刊:
ICDM 2020
影响因子:
--
作者:
Nakamura, Takaaki;Imamura, Makoto;Mercer, Ryan;Keogh, Eamonn
通讯作者:
Keogh, Eamonn
影响因子:
4.8
作者:
Yan Zhu;Shaghayegh Gharghabi;Diego Furtado Silva;Hoang Anh Dau;Chin;N. S. Senobari;Abdulaziz Almaslukh;Kaveh Kamgar;Zachary Zimmerman;G. Funning;A. Mueen;E. Keogh
通讯作者:
E. Keogh
影响因子:
3.1
作者:
John‐Robert Scholz;R. Widmer;P. Davis;P. Lognonné;B. Pinot;Raphaël F. Garcia;K. Hurst;L. Pou;F. Nimmo;S. Barkaoui;Sebastien de Raucourt;B. Knapmeyer‐Endrun;M. Knapmeyer;G. Orhand;N. Compaire;Arthur Cuvier;É. Beucler;Mickael Bonnin;R. Joshi;G. Sainton;É. Stutzmann;M. Schimmel;A. Horleston;M. Böse;S. Ceylan;J. Clinton;M. van Driel;T. Kawamura;Amir Khan;S. Stähler;D. Giardini;C. Charalambous;A. Stott;W. Pike;Ulrich R. Christensen;W. Banerdt
通讯作者:
W. Banerdt
影响因子:
64.8
作者:
Shelly, David R.;Beroza, Gregory C.;Nakamula, Sho
通讯作者:
Nakamula, Sho
DOI:
--
发表时间:
2019
期刊:
2019 IEEE International Conference on Big Data (Big Data)
影响因子:
--
作者:
Alireza Abdoli;A. Murillo;A. Gerry;Eamonn J. Keogh
通讯作者:
Eamonn J. Keogh