It would boost user experience if we could map words with similar sounds, such as forgot or forghot. We can use the phonetic analyzer for this.
The phonetic analyzer is a community-driven project and is capable of understanding words with similar sounds.
First, we need to install the phonetic analyzer. You can find the code base at https://github.com/elastic/elasticsearch-analysis-phonetic.
We can install the plugin using the following command:
bin/plugin install elasticsearch/elasticsearch-analysis-phonetic/2.4.2
Then, we need to create an analyzer out of it:
curl -X PUT "http://localhost:9200/my-index" -d '{
"index": {
"number_of_shards": 1,
"number_of_replicas": 1
},
"analysis": {
"filter": {
"my_metaphone": {
"type": "phonetic",
"encoder": "metaphone",
"replace": false
}
},
"analyzer": {
"metaphone": {
"type": "custom",
"tokenizer" : "standard",
"filter": "my_metaphone"
}
...