What is a key characteristic of DBSCAN compared to K-means?

Practice Questions

Q1
What is a key characteristic of DBSCAN compared to K-means?
  1. It requires the number of clusters to be specified
  2. It can find clusters of arbitrary shape
  3. It is faster than K-means for all datasets
  4. It uses centroids to define clusters

Questions & Step-by-Step Solutions

What is a key characteristic of DBSCAN compared to K-means?
Correct Answer: DBSCAN can identify clusters of arbitrary shape and does not require the number of clusters to be specified in advance.
  • Step 1: Understand that DBSCAN and K-means are both clustering algorithms used to group data points.
  • Step 2: Note that K-means requires you to specify the number of clusters (K) before running the algorithm.
  • Step 3: Recognize that DBSCAN does not need you to specify the number of clusters in advance.
  • Step 4: Learn that DBSCAN can find clusters that are not just round or spherical, meaning it can identify clusters of any shape.
  • Step 5: Compare this to K-means, which tends to create clusters that are more circular and evenly sized.
No concepts available.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely