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Dynamic Time Warping

In time series analysis, dynamic time warping (DTW) is an algorithm for measuring similarity between two temporal sequences which may vary in speed. DTW is a method that calculates an optimal match between two given sequences (e.g. time series) with certain restrictions. The sequences are "warped" non-linearly in the time dimension to determine a measure of their similarity independent of certain non-linear variations in the time dimension.

In this script, I use the python package (fastdtw) and apply it to a Energy Usage time series dataset found here: UCI Machine Learning - Individual household electric power consumption Data Set

I've provided the Zeppelin notebook (note.json), which can be copied in to your environment and/or you can also view at https://www.zeppelinhub.com/viewer

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dynamic_time_warping's Issues

euclidean

line 34, of pyspark_dtw.py

distance, path = fastdtw(array1, array2, dist=euclidean)

Where is the euclidean defined?

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