Hi,

I have gone through the default scoring function that elasticsearch uses.

```
score(q,d) =
queryNorm(q)
* coord(q,d)
* SUM (
tf(t in d),
idf(t)²,
t.getBoost(),
norm(t,d)
) (t in q)
```

score(q,d) is the relevance score of document d for query q.

queryNorm(q) is the query normalization factor.

coord(q,d) is the coordination factor.

The sum of the weights for each term t in the query q for document d.

tf(t in d) is the term frequency for term t in document d.

idf(t) is the inverse document frequency for term t.

t.getBoost() is the boost that has been applied to the query.

norm(t,d) is the field-length norm, combined with the index-time field-level boost, if any.

I want to use Coordination factor alone as my score.

Any help here is highly appreciated.

Thanks,

HarshaYerasi.