# Cosine Similarity ElasticSearch **URL:** \ **Category:** Elasticsearch\ **Created:** [July 25, 2014, 9:28am UTC](https://discuss.elastic.co/t/cosine-similarity-elasticsearch/18897 "2014-07-25T09:28:01Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![RickDast](https://avatars.discourse-cdn.com/v4/letter/r/8797f3/32.png) [@RickDast](https://discuss.elastic.co/u/RickDast)\ **Post date:** [July 25, 2014, 9:28am UTC](https://discuss.elastic.co/t/cosine-similarity-elasticsearch/18897/1 "2014-07-25T09:28:01Z")
Hi, I'm using elasticsearch to index documents and then, with an other document, I score similarity using the "more\_like\_this" query. Just two questions: Does the "more\_like\_this" query use cosine similarity to score documents (I've read the documentation, but I'm still not sure)? There is a way to get the scores between 0 and 1? Thanks! ---
**Author:** ![peter\_SP](https://avatars.discourse-cdn.com/v4/letter/p/bbce88/32.png) [@peter\_SP](https://discuss.elastic.co/u/peter_SP)\ **Post date:** [July 30, 2014, 11:46am UTC](https://discuss.elastic.co/t/cosine-similarity-elasticsearch/18897/2 "2014-07-30T11:46:03Z")
I am also interested in this question. I have found a fairly old code snippet [1] to calculate the cosine similarity in lucene, but I was wondering if elasticsearch provided an easier API to access this information. [1] > **[Computing Document Similarity using Lucene Term Vectors](http://sujitpal.blogspot.com/2011/10/computing-document-similarity-using.html)** > > Someone asked me a question recently about implementing document similarity, and since he was using Lucene, I pointed him to the Lucene Term... Hi, > I'm using elasticsearch to index documents and then, with an other > document, > I score similarity using the "more\_like\_this" query. > Just two questions: > > Does the "more\_like\_this" query use cosine similarity to score documents > (I've read the documentation, but I'm still not sure)? > There is a way to get the scores between 0 and 1? > > Thanks! > > -- > View this message in context: > [http://elasticsearch-users.115913.n3.nabble.com/Cosine-Similarity-ElasticSearch-tp4060620.html](http://elasticsearch-users.115913.n3.nabble.com/Cosine-Similarity-ElasticSearch-tp4060620.html) > Sent from the Elasticsearch Users mailing list archive at [Nabble.com](http://Nabble.com). -- 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). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/6a2e446d-ec13-4db6-8cff-651ab5108235%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/6a2e446d-ec13-4db6-8cff-651ab5108235%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![RickDast](https://avatars.discourse-cdn.com/v4/letter/r/8797f3/32.png) [@RickDast](https://discuss.elastic.co/u/RickDast)\ **Post date:** [August 1, 2014, 8:41am UTC](https://discuss.elastic.co/t/cosine-similarity-elasticsearch/18897/3 "2014-08-01T08:41:42Z")
There is someone that can help us? Thank you very much! ---
**Author:** ![vineeth\_mohan\_2](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vineeth_mohan_2/32/747_2.png) [@vineeth\_mohan\_2](https://discuss.elastic.co/u/vineeth_mohan_2)\ **Post date:** [August 1, 2014, 9:04am UTC](https://discuss.elastic.co/t/cosine-similarity-elasticsearch/18897/4 "2014-08-01T09:04:30Z")
Hello Rick , MLT query translates the source document into a normal boolean terms query. This query is fired against the index and a normal TF IDF is used to find the score. AFAIK this is the working of MLT. Thanks Vineeth On Fri, Aug 1, 2014 at 2:11 PM, RickDast [chiccobia@gmail.com](mailto:chiccobia@gmail.com) wrote: > There is someone that can help us? > > Thank you very much! > > -- > View this message in context: > [http://elasticsearch-users.115913.n3.nabble.com/Cosine-Similarity-ElasticSearch-tp4060620p4061039.html](http://elasticsearch-users.115913.n3.nabble.com/Cosine-Similarity-ElasticSearch-tp4060620p4061039.html) > Sent from the Elasticsearch Users mailing list archive at [Nabble.com](http://Nabble.com). > > -- > 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). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/1406882502942-4061039.post%40n3.nabble.com](https://groups.google.com/d/msgid/elasticsearch/1406882502942-4061039.post%40n3.nabble.com) > . > For more options, visit [https://groups.google.com/d/optout](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](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAGdPd5n\_Gk7AiDFywUnb-AQ5e-Z2k6GCCvORGBS8SN2Htj9hdg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAGdPd5n_Gk7AiDFywUnb-AQ5e-Z2k6GCCvORGBS8SN2Htj9hdg%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Alex\_S\_V](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alex_s_v/32/1317_2.png) [@Alex\_S\_V](https://discuss.elastic.co/u/Alex_S_V)\ **Post date:** [August 1, 2014, 12:07pm UTC](https://discuss.elastic.co/t/cosine-similarity-elasticsearch/18897/5 "2014-08-01T12:07:39Z")
Hi, I found some native script codings from Igor Motov here: [https://github.com/imotov/elasticsearch-native-script-example/blob/master/src/main/java/org/elasticsearch/examples/nativescript/script/CosineSimilarityScoreScript.java](https://github.com/imotov/elasticsearch-native-script-example/blob/master/src/main/java/org/elasticsearch/examples/nativescript/script/CosineSimilarityScoreScript.java) and now playing with it Alex On Friday, August 1, 2014 11:53:24 AM UTC+3, Federico Bianchi wrote: > There is someone that can help us? > > Thank you very much! > > -- > View this message in context: > [http://elasticsearch-users.115913.n3.nabble.com/Cosine-Similarity-ElasticSearch-tp4060620p4061039.html](http://elasticsearch-users.115913.n3.nabble.com/Cosine-Similarity-ElasticSearch-tp4060620p4061039.html) > Sent from the Elasticsearch Users mailing list archive at [Nabble.com](http://Nabble.com). -- 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). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/5b9025dd-0173-4b09-ae09-31a2f78e99d7%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/5b9025dd-0173-4b09-ae09-31a2f78e99d7%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 1:11am UTC](https://discuss.elastic.co/t/cosine-similarity-elasticsearch/18897/6 "2017-07-06T01:11:42Z")