Hi,
I am new on Elasticsearch and I was trying to build my little node application to insert some faq documents and to search them. I am trying to use the phrase suggester but the result is not the one I expected but I don't understant what is wrong.
Here are my commands from the beginning to create index and analyzers:
curl -XPUT 'localhost:9200/myapp?pretty'
curl -XPOST 'localhost:9200/myapp/_close'
curl -XPUT localhost:9200/myapp/_settings -d'
{
"settings": {
"analysis": {
"filter": {
"italian_elision": {
"type": "elision",
"articles": [
"c", "l", "all", "dall", "dell",
"nell", "sull", "coll", "pell",
"gl", "agl", "dagl", "degl", "negl",
"sugl", "un", "m", "t", "s", "v", "d"
]
},
"italian_stop": {
"type": "stop",
"stopwords": "italian"
},
"italian_stemmer": {
"type": "stemmer",
"language": "italian"
}
},
"analyzer": {
"italian": {
"tokenizer": "standard",
"filter": [
"italian_elision",
"lowercase",
"italian_stop",
"italian_stemmer"
]
}
}
}
}
}'
curl -XPOST 'localhost:9200/myapp/_open'
Everything was successful and I started inserting a type and some rows:
client.create({
index: 'myapp',
type: 'faq',
body: {
title: 'first title',
text: 'hello friend'
}
}, function (err, response) {
console.log(err, response)
})
Now I am trying to search a wrong phrase to test the phrase suggester: I have tried this search:
client.search({
index: 'myapp',
type: 'faq',
body: {
'query': {
'match': {
'text': 'helko friund'
}
},
'suggest': {
'text': 'helko friund',
'simple_phrase': {
'phrase': {
'field': 'text',
'size': 5,
'real_word_error_likelihood': 0.95,
'gram_size': 1,
'highlight': {
'pre_tag': '',
'post_tag': ''
},
'direct_generator': [{
'field': 'text',
'suggest_mode': 'always',
'min_word_len': 1
}]
}
}
}
}
})
and I was expecting to retrieve a suggestion "hello friend" but it returns two different suggestions:
"suggest": {
"simple_phrase": [
{
"text": "helko friund",
"offset": 0,
"length": 12,
"options": [
{
"text": "helko friend",
"highlighted": "helko friend",
"score": 0.36621025
},
{
"text": "hello friund",
"highlighted": "hello friund",
"score": 0.359775
}
]
}
]
}
What do I have to do to retrieve un unique suggestion with both words correct?
Thanks in advance for the help
Andrea