he method / metric which is NOT useful to determine the optimal number of clusters in unsupervised clustering algorithms is Scatter plot Elbow method Dendrogram None of the above

The method / metric which is NOT useful to determine the optimal number of clusters in unsupervised clustering algorithms isReview LaterDendogramElbow methodScree plotNone of the above.

Which method is commonly used to select the right number of clusters? 1 pointThe elbow method. The ROC curve. The perfect Square MethodThe Sum of Square Method

How is the optimal number of clusters determined in hierarchical clustering?*1 pointBy minimizing the between-cluster sum of squaresBy maximizing the within-cluster sum of squaresBy examining the dendrogram and selecting an appropriate cut-off pointBy using the elbow method on the resulting tree structure

Which of the following optimized techniques are used in K-Means Clustering Algorithm*1 pointK-Means ++Elbow plotBoth K-Means++ and Elbow plotNone of these

In k means clustering dendrogram is developedSelect one:TrueFalse