Elasticsearch relevance

Hi,

with this simple query :

{
"query": {
"match": {
"title": "world"
}
}
}

i have two results :

1 - "title": "Goodbye World FRENCH", with "_score": 2.7005801,
2 - "title": "World War Z TRUEFRENCH", with "_score": 2.6142232,

the second title (World War Z TRUEFRENCH) start with the word World but
it have not the higher score. i think if the title start with the searched
world it must have more relevance ?

My analyze for the description filed:

"analyzer": {
"custom_french_analyzer": {
"tokenizer": "letter",
"filter": ["asciifolding", "lowercase", "french_stem", "elision",
"stop"]
},

Thanks,

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I think that the length of the field impacts the score (at least that was
the case last time I used Lucene, which is what's underneath
elasticsearch). The second entry is longer.

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Hello ,

The score is impacted by TF , IDF and the field length. -
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-advanced-scripting.html
You need to write a small script to compute this logic via function score
query.

Thanks
Vineeth

On Fri, Nov 14, 2014 at 7:54 AM, Fadel Chafai fadelmohamed@gmail.com
wrote:

Hi,

with this simple query :

{
"query": {
"match": {
"title": "world"
}
}
}

i have two results :

1 - "title": "Goodbye World FRENCH", with "_score": 2.7005801,
2 - "title": "World War Z TRUEFRENCH", with "_score": 2.6142232,

the second title (World War Z TRUEFRENCH) start with the word World but
it have not the higher score. i think if the title start with the searched
world it must have more relevance ?

My analyze for the description filed:

"analyzer": {
"custom_french_analyzer": {
"tokenizer": "letter",
"filter": ["asciifolding", "lowercase", "french_stem",
"elision", "stop"]
},

Thanks,

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thank you for your response

On Sun, Nov 16, 2014 at 2:49 PM, vineeth mohan vm.vineethmohan@gmail.com
wrote:

Hello ,

The score is impacted by TF , IDF and the field length. -
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-advanced-scripting.html
You need to write a small script to compute this logic via function score
query.

Thanks
Vineeth

On Fri, Nov 14, 2014 at 7:54 AM, Fadel Chafai fadelmohamed@gmail.com
wrote:

Hi,

with this simple query :

{
"query": {
"match": {
"title": "world"
}
}
}

i have two results :

1 - "title": "Goodbye World FRENCH", with "_score": 2.7005801,
2 - "title": "World War Z TRUEFRENCH", with "_score": 2.6142232,

the second title (World War Z TRUEFRENCH) start with the word World
but it have not the higher score. i think if the title start with the
searched world it must have more relevance ?

My analyze for the description filed:

"analyzer": {
"custom_french_analyzer": {
"tokenizer": "letter",
"filter": ["asciifolding", "lowercase", "french_stem",
"elision", "stop"]
},

Thanks,

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ü Before you print it, think about the environment!

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