Coursera Answers

Machine Learning With Python Week 4 Quiz Answer | Clustering

Machine Learning With Python Week 4 Quiz Answer  Clustering

Machine Learning With Python Week 4 Quiz Answer | Clustering




Clustering


Question 1)

Which of the following is an application of clustering?


  • Price estimation
  • Sales prediction
  • Customer churn prediction
  • Customer segmentation



Question 2)

Which approach can be used to calculate dissimilarity of objects in clustering?


  • Cosine similarity
  • Minkowski distance
  • Euclidian distance
  • All of the above



Question 3)

How is a center point (centroid) picked for each cluster in k-means?



  • We can select it through correlation analysis.
  • We can create some random points as centroids of the clusters.
  • We can randomly choose some observations out of the data set and use these observations as the initial means.