Expressions allow you create rules for your keywords. The rules are based on keywords and phrases, but Expressions allow you to further refine which keywords and phrases get allocated to which Topic.

An example expressions could be save AND time. This will allocate all feedback to a topic if the feedback has BOTH "save" and "time" as keywords. It is important to note that keywords overwrite expressions. So if the same topic also contains the keyword "time", all comments (also those who do not contain "save") will go to this topic regardless of the expression. Expressions can add or exclude feedback if those used words are not also keywords.

Advanced Expressions allow you to:

Thanks to the Expression editor, creating powerful key expressions is easy in Lumoa. The AI understands key expressions and will suggest new topics and key phrases accordingly.

Expressions can be accessed while Editing Topics. To edit and manage topics follow these steps:

Then, select a Topic. Expressions for that Topic will appear empty unless some have already been added, e.g., by your analytics manager:

In the following the most used expressions as well as some examples will be listed.

In the example below, we are adding the words app and easy to an expression, with the AND command in the middle. This will make it so that only feedback that has both easy and app will go to this Topic.

We can also use expressions to disallow feedback from being allocated to a Topic. In the below example, if a feedback contains the word slow, it will NOT get allocated to this Topic if the feedback also contains the word app:

Another expression might be the OR command, as shown below. It can either be written as OR or as a dash |

The following expression will allocate feedback to this Topic if it contains either the words speed OR fast.

It can also look like this:

This expression also allows you to combine multiple keywords that should be combined either with "AND" or with "AND NOT ANY".

For example, it is possible to write an expression that sorts all comments that contain friendly, grumpy or kind AND also either agent, personnel or employee. This would look like this:

It could also look like this:

Expressions also allow you to sort word parts to a category. This can be especially useful for languages that work with different genders or many cases, but there are also use cases for English.

`.*bank.*`

With this expression, every comment that contains the word "bank" will be sorted here. For example, comments containing banker or databank.

`invest.*`

With this expression, every word that follows "sun" will be sorted into this category, e.g., investment or investor.

`.*day`

This last version of the expression allocates all words that have letters before "day" to this category, so Monday or holiday.

Normally a keyword like "match" will also lead to the allocation of variations such as "matching" or "matches". Sometimes it can be relevant to make sure that only a specific spelling or version will be sorted into a topic. There are different possibilities to do so.

This expression both allocates both comments that contain both the lowercase and uppercase word to the topic. So in this example, comments with the keyword Sport and sport will be considered here.

In this version, only the exact match will be considered, so in this case only comments that contain sport (and not Sport) will be allocated to this topic.

Below are some additional examples for how you can create your own syntax. Note that this can get quite complex if needed, and you can contact [email protected] for assistance.

Please find this Excel document with examples of Advanced Expressions. Below is the same list with references.

E.g. The Packet / Packet / Content Missing topic expressions such as these:

Successfully categorizes the following feedback:

See table structure example: