Annotation is a process of assigning labels to parts of documents. The set of labels, as well as the words or parts of words assigned to the label, depends on the type of annotation task.
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For named entity recognition (NER), the labels are the entity types the model is being trained to extract. REX has a set of predefined entity types, defined by language. They are automatically defined when the project is created.
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If Use Basis Training Data was enabled during initial project configuration, you cannot add new labels to the project.
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For events, the labels are the key phrase and the roles. They are defined by the schema.
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You must be registered as a manager.
Add new labels to the project immediately after creating the project.
If Use Basis Training Data was enabled during initial project configuration, you cannot add new labels to the project.
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Select Add Label in the list of labels on the project dashboard.
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Fill in the Add New Label form.
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Code: A brief name for the label. By convention, it is usually uppercase and about three letters. This will be used internally and in places where the UI shows a label in a brief form.
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Caption: A longer user-friendly name for this label, usually one or two words long. It should be descriptive, but reasonably short.
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Color: The color used for annotations of this label. You can accept the default color or assign a color.
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Include in Model Training: Enable this if the model being trained should use the annotations which use this label.
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Check the box for Include in Model Training if the annotations with the label should be used in training.
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Select Add.
Note
The Studio will not prompt you to re-annotate samples when a new label is added.
You can edit existing NER labels after the project has been created.
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Select the label you want to edit in the list of labels on the project dashboard.
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Edit any of the fields.
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Select Save.
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De-select Include in Model Training if you do not want annotations with this label to affect the model being trained. This is useful if you decide you no longer want to train the model using a label, but cannot delete it because it has already been assigned during annotations.
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You can only delete a label if there are no annotations for it. Once the label has been assigned during annotations, it cannot be deleted from that project. De-select Include in Model Training if you do not want annotations with this label to affect the model being trained.
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Select the label you want to delete in the list of labels on the project dashboard.
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Select Delete.