Hi,
Please run the below statements -
curl -X DELETE localhost:9200/autocomplete_scoring
curl -X PUT localhost:9200/autocomplete_scoring -d '
{
"settings" : {
"index" : {
"analysis" : {
"analyzer" : {
"translation_index_analyzer" : {
"type" : "custom",
"tokenizer" : "standard",
"filter" : "standard, lowercase,title_edgeNgram"
},
"translation_search_analyzer" : {
"type" : "custom",
"tokenizer" : "standard",
"filter" : "standard, lowercase"
}
},
"filter" : {
"title_edgeNgram" : {
"type" : "edgeNGram",
"min_gram" : 1,
"max_gram" : 10
}
}
}
}
},
"mappings": {
"autoCompleter": {
"properties": {
"name": {
"type": "string",
"index_analyzer": "translation_index_analyzer",
"search_analyzer": "translation_search_analyzer"
},
"hit": {
"type": "long"
},
"lastAccessedDate": {
"type": "date"
}
}
}
}
}
'
curl -X POST "http://localhost:9200/autocomplete_scoring/suggestion"; -d '{
"name" : "abc","hit" : 1, "lastAccessedDate" : "2014-07-08T08:00:00" }'
curl -X POST "http://localhost:9200/autocomplete_scoring/suggestion"; -d '{
"name" : "abc radio","hit" : 1, "lastAccessedDate" : "2014-07-01T08:00:00"
}'
curl -XPOST
"http://localhost:9200/autocomplete_scoring/_search?pretty=True"; -d'
{
"explain": true,
"query": {
"function_score": {
"query":{
"match":{
"name":"abc"
}
}
}
}
}'
== > From the result -
"_source":{ "name" : "abc radio","hit" : 1, "lastAccessedDate" :
"2014-07-01T08:00:00" },
"_explanation" : {
"value" : 0.4451987,
"description" : "weight(name:abc in 0) [PerFieldSimilarity], result
of:",
"details" : [ {
"value" : 0.4451987,
"description" : "fieldWeight in 0, product of:",
"details" : [ {
"value" : 1.0,
"description" : "tf(freq=1.0), with freq of:",
"details" : [ {
"value" : 1.0,
"description" : "termFreq=1.0"
} ]
}, {
"value" : 0.71231794,
"description" : "idf(docFreq=3, maxDocs=3)"
}, {
"value" : 0.625,
"description" : "fieldNorm(doc=0)"
} ]
} ]
}
Here the tf is 1.0 ?
How.
In my opinion it should be 1/2=0.5
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