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tweet tweet_id airline_sentiment airline 567591480085463000 negative United 567588278875213000 neutral Delta 5675900273757020

2. Compute the Dynamic Time Warping distance between the two time series: a. X= [1, 3, 4, 4] b. Y = [1, 2, 5] Let the cost fu

c) The DTW distance between the two time-series is

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Answer #1

Given, X = [1, 3, 4, 4]

Y = [1, 2, 5]

The cost function is: cost (xi, yi) = (xi - yi)2

a. The cost matrix is:

0 1 16
4 1 4
9 4 1
9 4 1

b. The DTW matrix is:

The formula is => d(i, j) = (xi - yi)2 + min {(d(i, j - 1)),(d(i - 1, j)),(d(i - 1, j - 1))}

0 1 17
4 1 5
13 5 2
22 9 2
0 0
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