[LUCENE-3436] Spellchecker "Suggest Mode" Support

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3, 4.0-ALPHA
• Fix Version/s: 3.5, 4.0-ALPHA
• Component/s: modules/spellchecker
• Lucene Fields: New, Patch Available
• Assignee: Robert Muir
• Reporter: James Dyer
• Created: 14/Sep/11 20:07
• Updated: 28/Aug/22 12:57
• Resolved: 16/Sep/11 14:09

Description

This is a spin-off from SOLR-2585.

Currently o.a.l.s.s.SpellChecker and o.a.l.s.s.DirectSpellChecker support two "Suggest Modes":
1. Suggest for terms that are not in the index.
2. Suggest "more popular" terms.

This issue is to add a third Suggest Mode:
3. Suggest always.

This will assist users in developing context-sensitive spell suggestions and/or did-you-mean suggestions. See SOLR-2585 for a full discussion.

Note that o.a.l.s.s.SpellChecker already can support this functionality, if the user passes in a NULL term & IndexReader. This, however, is not intutive. o.a.l.s.s.DirectSpellChecker currently has no support for this third Suggest Mode.

Issue Links

• is depended upon by: SOLR-2585 Context-Sensitive Spelling Suggestions & Collations