In hierarchical clustering, what does 'agglomerative' refer to?
Correct Answer: Agglomerative clustering refers to a method where individual data points are combined into clusters based on their distances.
- Step 1: Start with each data point as its own separate group or cluster.
- Step 2: Calculate the distance between each pair of clusters.
- Step 3: Find the two clusters that are closest together (the smallest distance).
- Step 4: Merge these two closest clusters into one larger cluster.
- Step 5: Repeat steps 2 to 4 until all data points are merged into a single cluster.
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