91-DOU : Day #5

Course : Python for Machine Learning and Data Science Masterclass

Video Mins completed : 29 mins

Last Video # completed : 209

Hierarchical clustering : Cluster points similar to each other. Similarity based on distance metric.

Can be used to figure out the number of clusters.

Types of Hierarchical Clustering:

  • Agglomerative :Starts as each point is one cluster and then points joined to make to form bigger clusters.
  • Divisive : Starts with all points in a single cluster and then points divided into smaller clusters.

Data scaling methods

https://scikit-learn.org/stable/auto_examples/preprocessing/plot_all_scaling.html

https://medium.com/@onersarpnalcin/standardscaler-vs-minmaxscaler-vs-robustscaler-which-one-to-use-for-your-next-ml-project-ae5b44f571b9

https://medium.com/@hhuseyincosgun/which-data-scaling-technique-should-i-use-a1615292061e