What is a potential drawback of hierarchical clustering?

Practice Questions

Q1
What is a potential drawback of hierarchical clustering?
  1. It can handle large datasets efficiently
  2. It does not require a predefined number of clusters
  3. It can be computationally expensive for large datasets
  4. It is less interpretable than K-means

Questions & Step-by-Step Solutions

What is a potential drawback of hierarchical clustering?
  • Step 1: Understand what hierarchical clustering is. It is a method of grouping data points into a tree-like structure based on their similarities.
  • Step 2: Recognize that hierarchical clustering involves calculating distances between all data points.
  • Step 3: Realize that as the number of data points increases, the number of distance calculations also increases significantly.
  • Step 4: Acknowledge that this increase in calculations can make the process slow and require a lot of computer resources.
  • Step 5: Conclude that for large datasets, this can be a major drawback, making hierarchical clustering less practical.
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