> For the complete documentation index, see [llms.txt](https://docs.aisera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aisera.com/aisera-platform/tenant-setup/aisera-platform-configuration/tenant-configuration-settings/knowledge-learning.md).

# Knowledge Learning

The Knowledge Learning settings are in **Settings > Configuration > Knowledge Learning**. These settings apply to all bots in your tenant. Two of the three configurations on this page are deprecated and have no effect.

### Score Threshold

| **Type**    | Decimal |
| ----------- | ------- |
| **Default** | `0.7`   |

Sets the minimum similarity score a Knowledge Base (KB) article must achieve to be returned as a match during Knowledge Learning. Raising this value reduces the number of matches returned but increases confidence; lowering it returns more matches at the cost of precision. Adjust this value if Knowledge Learning is surfacing too many low-quality KB suggestions, or missing articles that should be linked.

{% hint style="info" %}
Set this value between `0.0` and `1.0`. The system does not enforce a range, but similarity scores themselves fall within that range, so values outside it are not meaningful. 
{% endhint %}

{% hint style="warning" %}
Changing this value does not take effect automatically. A new Knowledge Learning training run is required to rebuild the model with the updated threshold.
{% endhint %}

## Deprecated configurations

### Use KB Subjects

| **Type**    | Checkbox |
| ----------- | -------- |
| **Default** | Disabled |

This configuration is deprecated and has no effect.

### Use KB Contents

| **Type**    | Checkbox |
| ----------- | -------- |
| **Default** | Disabled |

This configuration is deprecated and has no effect.