You would use sentiment analysis to gain actionable insights for your organization.
AI is short for Artificial Intelligence. It refers to the intelligent behavior of machines (i.e. computers).
Machine Learning is the study of computer algorithms that improve automatically through experience.
Opinion Mining (also called sentiment analysis) is a technique to derive positive or negative opinions from text.
Supervised learning is the most common branch of Machine Learning and refers to learning by example.
Deep Learning is an AI function imitating the learning behavior of the human brain.
NLP is short for Natural Language Processing whereas NLU means Natural Language Understanding.