[LUCENE-8936] Add SpanishMinimalStemFilter

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.0, 8.3
• Component/s: modules/analysis
• Lucene Fields: Patch Available
• Review Patch?: Yes
• Assignee: Tomoko Uchida
• Reporter: vinod kumar
• Created: 26/Jul/19 19:29
• Updated: 28/Aug/22 15:49
• Resolved: 28/Jul/19 14:47

Description

SpanishMinimalStemmerFilter is less aggressive stemmer than SpanishLightStemmerFilter

Ex:

input tokens -> output tokens
1. camiseta niños -> camiseta and nino
2. camisas -> camisa

camisetas and camisas are t-shirts and shirts respectively.
Stemming both of the tokens to camis will match both tokens and returns both t-shirts and shirts for query camisas(shirts). SpanishMinimalStemmerFilter will help handling these cases.

And importantly It will preserve gender context with tokens.

Ex:  niños ,niñas chicos and chicas are stemmed to nino, nina, chico and chica