====== AI Training ======
This page describes how to train personal AI-detectors from reality data and related annotations

{{orbit_desktop:how_to_find.png?25&nolink  |}} Main Toolbar > Extract > AI Training

===== Concepts =====

==== iTwin ====

An iTwin is a virtual replica of a physical assets powered by Bentley Systems.
It will host all reality data linked to infrastructure project and will allow the start of AI-training job.

==== Training job ====

A training job will create an AI-Detector to be used in AI Detection sidebar.
Relying on reality data (point cloud or images) and related annotations, it will be executed on Bentley Cloud Service.

==== Detectors ====

A detector is specific to a certain job type. The quality of the detection will depend on the similarity between your dataset and the training dataset’s description.

A detector is a frozen model. Running on your reality data through an iTwin Capture Analysis job, it will automatically recognize elements of interest. 

Personal detectors can be trained from AI Training sidebar and a list of generic/pre-trained detectors is available here: \\
https://communities.bentley.com/products/itwin-capture/w/itwin-capture-wiki/66882/itwin-capture-detectors-download-page

===== Sidebar =====

{{  :254:desktop_ext:itc_manage_and_extract_244_aitraining_sb.png?direct&200|}}

==== iTwin ====

AI Training occurs on Bentley Cloud Service. An iTwin association is required to ensure reality data and related annotations are accessible to AI Training engine.

==== Upload ====

After iTwin association, select relevant reality data.
If not available, open dedicated procedure to upload reality data Select it in AI Training sidebar

==== Cloud Reality Data ====

Select Reality Data you want your training job to un on.

====  Review training ====

Review training to ensure reality data is consistent for a training job

==== Initiate training ====

Trigger creation of specific cloud files that will enable training-job launch

==== Inform Bentley Support ====

Inform Bentley support
Do not modify auto-generated email and send as is.
Reality data and related annotations will be picked up by AI Training engine.
An AI-detector will be shared by email at the end of the procedure.


{{  :254:desktop_ext:itc_manage_and_extract_244_aitraining_email.png?direct&800  |}}