Word count score

Elastic Stack Elasticsearch
1

Hi !

I'd like to calculate the score of a query as the number of matched
wordsas, as do sphinx's "word_count".
For example, if the query is "word1 word2 word3",
then for each document, if the title contains word1, his score will be 1,
if it contains word1 and word2 the score will be 2, and the score will be 3
if it contains the 3 words.

How could I do that ?

Thanks for your help !

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2

You can use multiple terms in a should clause:

https://www.found.no/play/gist/905a2a067dd79593e8f5

Ignore the comment about stackoverflow in the save, I learned about this
way to share elasticsearch queries through the example given there. Sorry
about that.

There may be simpler ways, but this way works pretty effectively.

On Wednesday, February 25, 2015 at 11:33:55 AM UTC-5, Christophe Rosko
wrote:

Hi !

I'd like to calculate the score of a query as the number of matched
wordsas, as do sphinx's "word_count".
For example, if the query is "word1 word2 word3",
then for each document, if the title contains word1, his score will be 1,
if it contains word1 and word2 the score will be 2, and the score will be 3
if it contains the 3 words.

How could I do that ?

Thanks for your help !

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3

Hi Chris,

Thanks for your answer.
This is not exactly the behaviour I expected.
What i'd like to have on your example is :
=> "Microscopic examination of specimen from bacteria" has a score equals
to 3 because it's matching 3 words
=> "Bacteria specimen" has a score equals to 2 because it's matching 2 words
=> etc

How can I adapt your query to get this kind of score ?

Thanks for your help

Le jeudi 26 février 2015 04:45:52 UTC+1, Chris Pall a écrit :

You can use multiple terms in a should clause:

https://www.found.no/play/gist/905a2a067dd79593e8f5

Ignore the comment about stackoverflow in the save, I learned about this
way to share elasticsearch queries through the example given there. Sorry
about that.

There may be simpler ways, but this way works pretty effectively.

On Wednesday, February 25, 2015 at 11:33:55 AM UTC-5, Christophe Rosko
wrote:

Hi !

I'd like to calculate the score of a query as the number of matched
wordsas, as do sphinx's "word_count".
For example, if the query is "word1 word2 word3",
then for each document, if the title contains word1, his score will be 1,
if it contains word1 and word2 the score will be 2, and the score will be 3
if it contains the 3 words.

How could I do that ?

Thanks for your help !

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4

I'm not exactly sure how to get it to set exactly a particular score. I
played around with constant_score for a minute or two but had to move on.

I was hoping that just getting the relevance score correct would suit your
purposes -- good luck!

On Thu, Feb 26, 2015 at 4:05 AM, Christophe Rosko christophe@digiteka.com
wrote:

Hi Chris,

Thanks for your answer.
This is not exactly the behaviour I expected.
What i'd like to have on your example is :
=> "Microscopic examination of specimen from bacteria" has a score equals
to 3 because it's matching 3 words
=> "Bacteria specimen" has a score equals to 2 because it's matching 2
words
=> etc

How can I adapt your query to get this kind of score ?

Thanks for your help

Le jeudi 26 février 2015 04:45:52 UTC+1, Chris Pall a écrit :

You can use multiple terms in a should clause:

https://www.found.no/play/gist/905a2a067dd79593e8f5

Ignore the comment about stackoverflow in the save, I learned about this
way to share elasticsearch queries through the example given there. Sorry
about that.

There may be simpler ways, but this way works pretty effectively.

On Wednesday, February 25, 2015 at 11:33:55 AM UTC-5, Christophe Rosko
wrote:

Hi !

I'd like to calculate the score of a query as the number of matched
wordsas, as do sphinx's "word_count".
For example, if the query is "word1 word2 word3",
then for each document, if the title contains word1, his score will be
1, if it contains word1 and word2 the score will be 2, and the score will
be 3 if it contains the 3 words.

How could I do that ?

Thanks for your help !

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5

Thanks for your help anyway Chris :slight_smile:
I'll keep trying and let you know if I find a solution.

And if anyone here know how to do that, please share :slight_smile:

Le jeudi 26 février 2015 15:03:30 UTC+1, Chris Pall a écrit :

I'm not exactly sure how to get it to set exactly a particular score. I
played around with constant_score for a minute or two but had to move on.

I was hoping that just getting the relevance score correct would suit your
purposes -- good luck!

On Thu, Feb 26, 2015 at 4:05 AM, Christophe Rosko <chris...@digiteka.com
<javascript:>> wrote:

Hi Chris,

Thanks for your answer.
This is not exactly the behaviour I expected.
What i'd like to have on your example is :
=> "Microscopic examination of specimen from bacteria" has a score equals
to 3 because it's matching 3 words
=> "Bacteria specimen" has a score equals to 2 because it's matching 2
words
=> etc

How can I adapt your query to get this kind of score ?

Thanks for your help

Le jeudi 26 février 2015 04:45:52 UTC+1, Chris Pall a écrit :

You can use multiple terms in a should clause:

https://www.found.no/play/gist/905a2a067dd79593e8f5

Ignore the comment about stackoverflow in the save, I learned about this
way to share elasticsearch queries through the example given there. Sorry
about that.

There may be simpler ways, but this way works pretty effectively.

On Wednesday, February 25, 2015 at 11:33:55 AM UTC-5, Christophe Rosko
wrote:

Hi !

I'd like to calculate the score of a query as the number of matched
wordsas, as do sphinx's "word_count".
For example, if the query is "word1 word2 word3",
then for each document, if the title contains word1, his score will be
1, if it contains word1 and word2 the score will be 2, and the score will
be 3 if it contains the 3 words.

How could I do that ?

Thanks for your help !

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