# What type of "technique" is it used to detetc anomalies? **URL:** \ **Category:** Elasticsearch\ **Tags:** elastic-stack-machine-learning\ **Created:** [August 12, 2019, 6:48pm UTC](https://discuss.elastic.co/t/what-type-of-technique-is-it-used-to-detetc-anomalies/194903 "2019-08-12T18:48:57Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Rosho](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rosho/32/51872_2.png) [@Rosho](https://discuss.elastic.co/u/Rosho)\ **Post date:** [August 12, 2019, 6:48pm UTC](https://discuss.elastic.co/t/what-type-of-technique-is-it-used-to-detetc-anomalies/194903/1 "2019-08-12T18:48:57Z")
Hi I have just started using the X-pack. I testing the "anomaly detection" tool. I would like to know what algorithm has been used to detect anomalies. For example, If it is unsupervised; is it k-means, DBSCAN, etc ? If it is statistics; is it the mean, the median, etc ? Thank you ---
**Author:** ![richcollier](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/richcollier/32/115035_2.png) [@richcollier](https://discuss.elastic.co/u/richcollier)\ **Post date:** [August 12, 2019, 7:06pm UTC](https://discuss.elastic.co/t/what-type-of-technique-is-it-used-to-detetc-anomalies/194903/2 "2019-08-12T19:06:29Z")
Some relevant videos that will help explain: 30 Min Meetup w/ Steve Dodson: 2017 ElasticON: [https://www.elastic.co/elasticon/conf/2017/sf/machine-learning-and-statistical-methods-for-time-series-analysis](https://www.elastic.co/elasticon/conf/2017/sf/machine-learning-and-statistical-methods-for-time-series-analysis) 2018 ElasticON: [https://www.elastic.co/elasticon/conf/2018/sf/the-math-behind-elastic-machine-learning](https://www.elastic.co/elasticon/conf/2018/sf/the-math-behind-elastic-machine-learning) ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [September 9, 2019, 7:06pm UTC](https://discuss.elastic.co/t/what-type-of-technique-is-it-used-to-detetc-anomalies/194903/3 "2019-09-09T19:06:33Z")
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