KShape cluster centers offset?












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I am using tslearn KShape to cluster time series data. I am generally happy with the results, as upon inspection, the clusters seem to make sense because of the similarity in shape and magnitude. I can see the general shape that emerges as seen in the figures below.



What I find odd is the cluster centers using k_shape.cluster_centers_. There seems to be a significant shift from some of the clusters. I've included two figures illustrating my point. In Cluster 0, the cluster center is plotted as the red line, and there is a significant shift from where that shape actually emerges in the time series. In Cluster 4, the cluster center is much more centered, for lack of a better term.



What could be contributing to the major offset seen in Cluster 0? What I find odd is that not all clusters have such a dramatic offset, and not all are offset to the beginning or the end of the time series. Any thoughts?



offset cluster center



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    $begingroup$


    I am using tslearn KShape to cluster time series data. I am generally happy with the results, as upon inspection, the clusters seem to make sense because of the similarity in shape and magnitude. I can see the general shape that emerges as seen in the figures below.



    What I find odd is the cluster centers using k_shape.cluster_centers_. There seems to be a significant shift from some of the clusters. I've included two figures illustrating my point. In Cluster 0, the cluster center is plotted as the red line, and there is a significant shift from where that shape actually emerges in the time series. In Cluster 4, the cluster center is much more centered, for lack of a better term.



    What could be contributing to the major offset seen in Cluster 0? What I find odd is that not all clusters have such a dramatic offset, and not all are offset to the beginning or the end of the time series. Any thoughts?



    offset cluster center



    png










    share|improve this question







    New contributor




    AAD2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







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      $begingroup$


      I am using tslearn KShape to cluster time series data. I am generally happy with the results, as upon inspection, the clusters seem to make sense because of the similarity in shape and magnitude. I can see the general shape that emerges as seen in the figures below.



      What I find odd is the cluster centers using k_shape.cluster_centers_. There seems to be a significant shift from some of the clusters. I've included two figures illustrating my point. In Cluster 0, the cluster center is plotted as the red line, and there is a significant shift from where that shape actually emerges in the time series. In Cluster 4, the cluster center is much more centered, for lack of a better term.



      What could be contributing to the major offset seen in Cluster 0? What I find odd is that not all clusters have such a dramatic offset, and not all are offset to the beginning or the end of the time series. Any thoughts?



      offset cluster center



      png










      share|improve this question







      New contributor




      AAD2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      I am using tslearn KShape to cluster time series data. I am generally happy with the results, as upon inspection, the clusters seem to make sense because of the similarity in shape and magnitude. I can see the general shape that emerges as seen in the figures below.



      What I find odd is the cluster centers using k_shape.cluster_centers_. There seems to be a significant shift from some of the clusters. I've included two figures illustrating my point. In Cluster 0, the cluster center is plotted as the red line, and there is a significant shift from where that shape actually emerges in the time series. In Cluster 4, the cluster center is much more centered, for lack of a better term.



      What could be contributing to the major offset seen in Cluster 0? What I find odd is that not all clusters have such a dramatic offset, and not all are offset to the beginning or the end of the time series. Any thoughts?



      offset cluster center



      png







      time-series clustering






      share|improve this question







      New contributor




      AAD2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







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      AAD2 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      share|improve this question




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