There are several ways to tag data.

Data annotation methods include image annotation, voice annotation, 3D point cloud annotation and text annotation.

l？ Image annotation

Common image annotation methods include semantic segmentation, rectangular box annotation, polygon annotation, key point annotation, point cloud annotation, 3D cube annotation, 2D/ 3D fusion annotation, target tracking and so on.

l？ Phonetic annotation

Common phonetic annotation types include ASA phonetic notation, phonetic cutting, phonetic cleaning, emotional judgment, voiceprint recognition, phoneme annotation, prosody annotation, pronunciation proofreading and so on.

l？ 3D point cloud labeling

Common 3D point cloud annotation types include 3D point cloud target detection annotation, 3D point cloud semantic segmentation annotation, 2D3D fusion annotation and point cloud continuous frame annotation.

l？ Text annotation

Common text tagging includes ocr transliteration, part-of-speech tagging, named entity tagging, sentence generalization, sentiment analysis, sentence writing, slot extraction, intention matching, text judgment, text matching, text information extraction, text cleaning, machine translation and so on.

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