multi-stage classifier

A multi-stage classifier is a system that makes a decision by passing data through several steps, or stages. At each stage, it evaluates certain features to classify or filter the data, and if the decision is clear, it stops. If not, it moves to the next stage for more detailed analysis. This approach improves accuracy and efficiency because simple or obvious cases are handled quickly, while complex cases get more in-depth scrutiny. It's like an expert gradually narrowing down options to reach the right conclusion, saving time and resources while maintaining high precision.