![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](http://img.homeworklib.com/questions/2c589b00-b113-11eb-b448-7578d37a711f.png?x-oss-process=image/resize,w_560)
Homework Answers
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 |
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