What is Machine Learning?

Machine learning is a subset of artificial intelligence that involves training algorithms to learn from data and make predictions or decisions.

There are three main types of machine learning: supervised learning, unsupervised learning, and reinforcement learning.

Data Preprocessing

Data preprocessing is an essential step in machine learning that involves cleaning, transforming, and preparing data for modeling.

Common data preprocessing techniques include handling missing values, encoding categorical variables, and scaling or normalizing data.

Model Evaluation

Model evaluation is the process of assessing the performance of a machine learning model on a given dataset.

Common metrics used to evaluate model performance include accuracy, precision, recall, and F1 score.