C1labeled
C1labeled is a data annotation standard designed to structure and standardize labeled items in multi-class datasets. It centers on a primary class code, denoted as C1, and supports additional sublabels and structured metadata to enable consistent quality control, interoperability among labeling tools, and easier downstream processing for machine learning workflows.
The standard defines a lightweight data model that can be serialized in common formats such as JSON
C1labeled emphasizes interoperability by providing mappings to widely used labeling schemas and dataset formats. It is
Applications of C1labeled include supervised learning data creation, quality assurance, auditing of labeling processes, and cross-team
Limitations include reliance on a shared understanding of the C1 coding scheme and sublabel taxonomy. Adoption
See also: data annotation, labeling standard, dataset formats, interoperability in labeling.