BM25 for query itself

Elastic Stack Elasticsearch
1

Hi,

I'm wondering is there away to calculate BM25 score for the query itself
(query-against-query)?
Adding it to index seems to be invalid solution as it will influent the
tf-idf of the index and make it corrupted.

Thank you,
Bohdan

--
You received this message because you are subscribed to the Google Groups "elasticsearch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/2183d2cc-a997-4397-aa0b-c5ac2fcedd71%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

2

Isn't the point of BM25 to use variable document length normalization? It
works when used on the entire index/corpus. It is meant to influence the TF
values.

Comparing results between Lucene queries is not advisable. Why did you
switch to BM25? Do you field lengths vary much?

Cheers,

Ivan
On Apr 15, 2015 3:14 AM, "bohdan" bklepar@gmail.com wrote:

Hi,

I'm wondering is there away to calculate BM25 score for the query itself
(query-against-query)?
Adding it to index seems to be invalid solution as it will influent the
tf-idf of the index and make it corrupted.

Thank you,
Bohdan

--
You received this message because you are subscribed to the Google Groups
"elasticsearch" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to elasticsearch+unsubscribe@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/elasticsearch/2183d2cc-a997-4397-aa0b-c5ac2fcedd71%40googlegroups.com
https://groups.google.com/d/msgid/elasticsearch/2183d2cc-a997-4397-aa0b-c5ac2fcedd71%40googlegroups.com?utm_medium=email&utm_source=footer
.
For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to the Google Groups "elasticsearch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CALY%3DcQBkoZPJa%2Ba6urcjHtP3xeYHHP5Jb39cFFXPLS09PACuPQ%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.