Customer Segmentation helps businesses to develop customer-focused marketing strategies and tactics. Every customer has a different taste; therefore, one single approach is not applicable for all the customers.

Unsupervised learning algorithms come into existence that can extract meaningful information from the junk and present it in a human-readable format. Clustering is one of them.

Machine learning technologies are now able to predict the individual's personality based on their social media usage. Personality-based communications are highly used in dating apps and recommendation systems.

Based on the nature of input that we provide to a machine learning algorithm, machine learning can be classified into 4 major categories - Supervised Learning, Unsupervised Learning, Semi-Supervised Learning, Reinforcement Learning.