Data Labeling Specialist - N/A
ClassificationYou served as a Data Labeling Specialist, participating in dataset construction and supporting the development of annotation guidelines and classification standards. You handled sample labeling and conducted secondary sampling inspections with ongoing quality assurance to maintain dataset reliability. You also performed raw data preprocessing activities to prepare clean data suitable for machine learning model training. • Participated in creating annotation guidelines, classification standards, and sample judgment rules • Led sample labeling, secondary sampling inspection, and full-scale quality assurance • Tracked labeling error rates and organized targeted reviews and corrections • Completed raw data preprocessing such as missing-value handling, denoising, and sample splitting