The IOB format is a method for tagging entities in text for Named Entity Recognition (NER) tasks, using three distinct labels: 'I' for Inside, 'O' for Outside, and 'B' for Beginning. This format helps in identifying the start and continuation of entities in a sequence of words, allowing models to better understand boundaries between different entity types. It is particularly useful in processing text data for tasks such as information extraction and natural language understanding.
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