A Query-Time Approach to Typo-Tolerant Autocomplete

📚 Series: Typo-Tolerant Autocomplete Part 1Autocomplete in Search : Design Constraints When You Can’t Reindex Part 2Using Tries for Prefix-Aware Typo Correction Part 3Bounding Typo Correction with Edit Distance Part 4A Query-Time Approach to Typo-Tolerant Autocomplete (current) ← Previous: Bounding Typo Correction with Edit Distance In the previous post, we looked at the constraints that make autocomplete difficult in real Lucene-based systems: large indices, high reindexing costs, tight latency budgets, and partial user input. ...

February 2, 2026 · 4 min · Navaneeth P T