Comparing arrays

Elastic Stack Elasticsearch
1

I have documents with an array field. The array contains unique elements
only. In this case the data is strings and but it could be numbers.

I want to search for documents using this array field. Ideally I would like
to pass in an array and find the "nearest match" meaning documents which
contain all or most of the elements in the array I passed in.

For example "find me all the documents with the array field similar to
['this', 'that', 'the other thing']"

Thanks.

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2

On Tuesday, September 23, 2014 2:18:35 PM UTC+12, Tim Uckun wrote:

I have documents with an array field. The array contains unique elements
only. In this case the data is strings and but it could be numbers.

I want to search for documents using this array field. Ideally I would
like to pass in an array and find the "nearest match" meaning documents
which contain all or most of the elements in the array I passed in.

For example "find me all the documents with the array field similar to
['this', 'that', 'the other thing']"

Hey guys I hate to bump myself up but does anybody have any hints on how
this could be done?

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3

I suppose you could simply create a "bool" search with "should" clauses on
all of the values, like

"query": {
"bool": [
"should": { "term": {"array": "this"}},
"should": { "term": {"array": "that"}},
"should": { "term": {"array": "other"}}
]
}

If you want you can use the minimum_should_match field too, or use a
different query type if you want more control over the sorting and
filtering of the results?

Anne

On Thu, Sep 25, 2014 at 5:49 AM, Tim Uckun timuckun@gmail.com wrote:

On Tuesday, September 23, 2014 2:18:35 PM UTC+12, Tim Uckun wrote:

I have documents with an array field. The array contains unique elements
only. In this case the data is strings and but it could be numbers.

I want to search for documents using this array field. Ideally I would
like to pass in an array and find the "nearest match" meaning documents
which contain all or most of the elements in the array I passed in.

For example "find me all the documents with the array field similar to
['this', 'that', 'the other thing']"

Hey guys I hate to bump myself up but does anybody have any hints on how
this could be done?

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Anne Veling
BeyondTrees.com
+31 6 50 969 170
@anneveling

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4

Hello Tim ,

The default similarity already have this logic in it , but then am sure
there are other logics too applied for default similarity.
I am not sure how to use this function logic alone for scoring.

But then , in worst case you can do as follows , but am sure there should
exist and better way for thos.
Create a script in scoring and use the ( score =
_index['FIELD']['TERM'].tf() > 0 ? 1 : 0 ) and sum all the score for each
term as the score of that document. -

Thanks
vineeth

On Thu, Sep 25, 2014 at 9:19 AM, Tim Uckun timuckun@gmail.com wrote:

On Tuesday, September 23, 2014 2:18:35 PM UTC+12, Tim Uckun wrote:

I have documents with an array field. The array contains unique elements
only. In this case the data is strings and but it could be numbers.

I want to search for documents using this array field. Ideally I would
like to pass in an array and find the "nearest match" meaning documents
which contain all or most of the elements in the array I passed in.

For example "find me all the documents with the array field similar to
['this', 'that', 'the other thing']"

Hey guys I hate to bump myself up but does anybody have any hints on how
this could be done?

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