# What constitutes an anomaly? How to tune detection?

**URL:** <https://discourse.numenta.org/t/what-constitutes-an-anomaly-how-to-tune-detection/2326>\
**Category:** NuPIC\
**Created:** [May 16, 2017, 8:37pm UTC](https://discourse.numenta.org/t/what-constitutes-an-anomaly-how-to-tune-detection/2326 "2017-05-16T20:37:04Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![rhyolight](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.numenta.org/rhyolight/32/3922_2.png) [@rhyolight](https://discourse.numenta.org/u/rhyolight)\
**Post date:** [May 18, 2017, 5:32pm UTC](https://discourse.numenta.org/t/what-constitutes-an-anomaly-how-to-tune-detection/2326/10 "2017-05-18T17:32:27Z")

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> [@phil\_d\_cat](#):
>
> so run a single column of data?

To ignore the timestamp field, you can just remove the encoder parameters that encode the time semantics.

> [@phil\_d\_cat](#):
>
> RE likelihood score: how to compute that has been bugging me. Suggestions where to look for this?

[http://nupic.docs.numenta.org/0.7.0.dev0/guides/anomaly-detection.html](http://nupic.docs.numenta.org/0.7.0.dev0/guides/anomaly-detection.html)

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