Automata

58 Tech

Feb 26, 2021 · Fundamentals

Efficient Similar‑String Search in Search Engines Using Levenshtein and Damerau‑Levenshtein Automata

This article presents a comprehensive technical guide on applying Levenshtein and Damerau‑Levenshtein automata to efficiently solve the problem of fast similar‑string lookup in search‑engine systems, introducing novel DFA construction algorithms, theoretical correctness proofs, and practical implementation details with Java code examples.