Configuration > Feature Engineering
Intended audience: DATA SCIENTISTS DEVELOPERS ADMINISTRATORS
AO Platform: 4.3
Overview
The Feature Engineering page is very similar to the Configuration > Data Transformations page with the exception that any transformations applied on the Feature Engineering page will result in a new field property being created, ie the original field from the data source to which the transformation is applied to will not be changed. All properties on this page are therefore consistent with the Data Transformations page, plus the additional New Property Name property.
The transformation functions can be applied per field property, and the user can select from a list of predefined transformations in the Function dropdown. The Data Preview section of the page will show the data, including the new field properties that have received the Transformations. Those columns will be colored green to easily validate the transformed values.
Recommended Feature Engineering Transformations
If the Training Data Source comes from an MSO instead of a Database or MSO Query, then the Feature Engineering page will include an additional Show Recommendations button that, when clicked, will show a dialog with system-suggested Transformations to apply. Field properties that are shown will have one or more recommended Transformations shown. Select the Transformations to be added, then click the Add button, and the recommended Transformations will be inserted on the Data Transformations page.
The Feature Engineering page, when a Database or MSO Query is selected as the Data Source on the Training Data page | The Feature Engineering page, when MSO is selected as the Data Source on the Training Data page |
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Each transformation function may optionally come with one or more parameters whose values must be updated by the user.
Properties
Label | Description |
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Property | A dropdown allowing the user to select the individual data source properties that require a transformation to be applied. If multiple properties are added per Transformation, then the order of the Properties and their Data Types must be as required by the Transformation function. |
Function | Dropdown that will show a list of available transformation functions. Transformation functions are added in the Admin solution - see Admin > AI Configurations |
Parameters | Click the Show Parameters button to open a dialog with a list of parameters for the selected transformation. Most/all parameters will have a default value. Change if needed. Click Apply when done. |
New Property Name | Add a name for the property that will receive the result of the transformation function. |
Custom Function | This property is only available when Custom is selected in the Transformation dropdown. For ad-hoc Custom Transformations, see the Custom Transformation section above. |