To determine the optimal number of clusters in K-Means using Elbow and Silhouette methods
The 'Elbow' in the Elbow method refers to the point on the graph where the curve starts to _________ significantly.
The Elbow method is not suitable for evaluating clustering performance when the data is ___________.
The Elbow method is commonly used in which type of unsupervised learning algorithm?
In the Silhouette method, if the average Silhouette score is close to 1, it suggests that the clustering is ___________.
The Silhouette method helps to identify the appropriate number of clusters that maximizes __________ and minimizes cluster overlap.