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2 exercise(s) shown, 0 hidden
ABy Admin
May 25'23
You are given the following four pairs of observations:
[[math]]
x_1 = (-1,0), \, x_2 = (1,1), \, x_3 = (2,-1), \, x_4 = (5,10)
[[/math]]
A hierarchical clustering algorithm is used with complete linkage and Euclidean distance.
Calculate the intercluster dissimilarity between [math]\{x_1,x_2\}[/math] and [math]\{x_4\}[/math].
- 2.2
- 3.2
- 9.9
- 10.8
- 11.7
Copyright 2023. The Society of Actuaries, Schaumburg, Illinois. Reproduced with permission.
ABy Admin
May 25'23
Determine which of the following statements about hierarchical clustering is/are true.
- The method may not assign extreme outliers to any cluster.
- The resulting dendrogram can be used to obtain different numbers of clusters.
- The method is not robust to small changes in the data.
- None
- I and II only
- I and III only
- II and III only
- The correct answer is not given by (A), (B), (C), or (D).
Copyright 2023. The Society of Actuaries, Schaumburg, Illinois. Reproduced with permission.