# Has anyone tried the new similarities in 0.90? **URL:** \ **Category:** Elasticsearch\ **Created:** [March 8, 2013, 7:16pm UTC](https://discuss.elastic.co/t/has-anyone-tried-the-new-similarities-in-0-90/11079 "2013-03-08T19:16:41Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\ **Post date:** [March 8, 2013, 7:16pm UTC](https://discuss.elastic.co/t/has-anyone-tried-the-new-similarities-in-0-90/11079/1 "2013-03-08T19:16:41Z")
I'm still on 0.20, so I haven't tried any of the new features in 0.90. I am interested in how well BM25 performs, particularly with IDFs and distributed shards. I am finding relevancy issues dealing with queries over numerous shards returning few results. IDF is still a component of BM25, I am just hoping the term scoring will be improved for our use case. Never heard-of/used the other similarity models. Cheers, Ivan -- 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](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:47am UTC](https://discuss.elastic.co/t/has-anyone-tried-the-new-similarities-in-0-90/11079/2 "2017-07-06T02:47:27Z")
Closed on July 6, 2017, 2:47am UTC