Intermediate · NLP
Approximate string matching
Visual diagram · (in preparation) · Math · (in preparation) · Worked example · 3 difficulty levels.
TL;DR. Finding strings that are approximately similar to a given pattern, allowing for errors or variations.
Technical Definition
Finding strings that are approximately similar to a given pattern, allowing for errors or variations.
How it works
Approximate string matching, also known as fuzzy string searching, involves finding strings that are similar but not necessarily identical to a specified pattern. This technique is useful for tasks like spell checking or searching databases where exact matches may not be present due to typos or variations.
Related Concepts
- Fuzzy logic — A logic system that uses 'degrees of truth' between 0 and 1, allowing for imprecise reasoning.
- Natural language processing (NLP) — A field of AI enabling computers to understand, interpret, and generate human language.
- Edit distance — A metric that calculates the minimum number of single-character edits required to change one string into another.