The Art and Craft of Search Auto-Suggest

Search auto-suggest -- the drop-down menu of suggestions displayed while typing into a search box -- is the first and often the only search interaction that users encounter. The goal of auto-suggest is to show users possibilities related to their typing, and provide them dynamic context information about what is available. This article explores creating auto-suggest indexes, matching, retrieval and ranking, handling zero matches, and user interface options, with considerations and trade-offs for various approaches.


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