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A data annotator is the person or role responsible for creating or correcting annotations according to defined labeling specifications.
Depending on domain context, task complexity, and risk, annotators may be domain experts or trained generalists. They must be proficient with specialized data annotation tools and capable of handling tasks across data types.
The role demands careful attention to detail, high consistency, and accurate interpretation of domain instructions. The precision and reliability of their output directly influence model training outcomes.
A data annotator conducting LiDAR point cloud annotation task
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