WARNING: Version 5.4 of Elasticsearch has passed its EOL date.

This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.

« Word Delimiter Graph Token Filter Stemmer Override Token Filter »

› › ›

Stemmer Token Filter

edit

Stemmer Token Filter

edit

A filter that provides access to (almost) all of the available stemming token filters through a single unified interface. For example:

PUT /my_index
{
    "settings": {
        "analysis" : {
            "analyzer" : {
                "my_analyzer" : {
                    "tokenizer" : "standard",
                    "filter" : ["standard", "lowercase", "my_stemmer"]
                }
            },
            "filter" : {
                "my_stemmer" : {
                    "type" : "stemmer",
                    "name" : "light_german"
                }
            }
        }
    }
}

The language/name parameter controls the stemmer with the following available values (the preferred filters are marked in bold):

Arabic	`arabic`
Armenian	`armenian`
Basque	`basque`
Brazilian Portuguese	`brazilian`
Bulgarian	`bulgarian`
Catalan	`catalan`
Czech	`czech`
Danish	`danish`
Dutch	`dutch`, `dutch_kp`
English	`english`, `light_english`, `minimal_english`, `possessive_english`, `porter2`, `lovins`
Finnish	`finnish`, `light_finnish`
French	`french`, `light_french`, `minimal_french`
Galician	`galician`, `minimal_galician` (Plural step only)
German	`german`, `german2`, `light_german`, `minimal_german`
Greek	`greek`
Hindi	`hindi`
Hungarian	`hungarian`, `light_hungarian`
Indonesian	`indonesian`
Irish	`irish`
Italian	`italian`, `light_italian`
Kurdish (Sorani)	`sorani`
Latvian	`latvian`
Lithuanian	`lithuanian`
Norwegian (Bokmål)	`norwegian`, `light_norwegian`, `minimal_norwegian`
Norwegian (Nynorsk)	`light_nynorsk`, `minimal_nynorsk`
Portuguese	`portuguese`, `light_portuguese`, `minimal_portuguese`, `portuguese_rslp`
Romanian	`romanian`
Russian	`russian`, `light_russian`
Spanish	`spanish`, `light_spanish`
Swedish	`swedish`, `light_swedish`
Turkish	`turkish`

« Word Delimiter Graph Token Filter Stemmer Override Token Filter »