Sort by position / best match

Elastic Stack Elasticsearch
1

Hello,
i'm searching against a elacsticsearch server and i am wondering if i can control the score of a result?

Today i do a search like:

query = {
    'query': {
      'multi_match': {
        'query': "Foo Bar Inc",
        'fields': ["name", "nickname"],
      }
    }
  }

And if i have 3 records like:

  1. Bar and Foo Inc
  2. Bar Foo Ltd
  3. Foo Bar Inc

I would like to have number 3. with the highest score, how can i modify the search to do that?
Now 1 and 3 have the same score

2

The question you ask is deceivingly complicated.

Elasticsearch uses statistics to give a score and a variety of things, both in terms of what you index and how you search, will adjust the score. I'd really recommend you read https://www.elastic.co/guide/en/elasticsearch/guide/current/search-in-depth.html and the sub-sections there so you understand what Elasticsearch is doing so you can really control it. You likely want something like https://www.elastic.co/guide/en/elasticsearch/guide/current/proximity-relevance.html where it has one block that matches terms and another block that attempts to boost an exact phrase match.

3

Is it possible to combine my search from above and match_phrase ?
So i both have the search where it searches for all terms, but also a match_phrase and then combine the score of the two results ?

4

And how can i ensure that my "search" will only return exact match?
Lets say i search for:

Foo Bar Inc

And i have this in my data:

Foo Bar Inc
Hmm Foo Bar Inc
Foo Bar Inc International
etc...
I will make a search like this in sql:
where name = "Foo Bar Inc"

5

If you want to match a sub-phrase within a larger set of text, you'll want to use the text field type and use the match_phrase query.

If you want an exact match of the field value, you'll want to use the keyword field type and use a match query.

If you want both to come back but have exact matches be preferred, you can use a bool query with an exact phrase or match on keywords in the "should" clause.

The "search in depth" and "proximity-relevance" pages walk through this (and the latter actually gives an example that's very close to what you've asked)

6

I have looked into a ES course, so i needed to learn a bit more about the topic.. :slight_smile:

7

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