 Approximate string matching

Approximate string matching, also known as fuzzy string matching, refers to the process of finding strings that match a given pattern approximately rather than exactly. It is widely used in various applications, such as spell checking, DNA sequence analysis, natural language processing, and searching in databases where users may input incorrect or imprecise text. ### Key Concepts: 1. **Edit Distance:** - This is one of the most common metrics for measuring how similar two strings are.