Machine learning (ML) is a process of computer learning without human intervention and ML is a sub-section of AI. This type of statistical learning can be supervised or unsupervised. Machine learning algorithms are usually written based on mathematical models. Classification, Regression and Clustering algorithms can be given as a real examples of the ML algorithms.
The learning processes of ML algorithms are similar to humans. As we learn more by practicing, ML algorithms perform better learning with more data and experience.