At TOSY ROBOT JOINT STOCK COMPANY, I created ground-truth datasets by describing images and categorizing visual defects, achieving over 99% labeling accuracy. I also evaluated an internal AI chatbot and reviewed AI-generated outputs for factual accuracy and Vietnamese language quality.
I engineered Python and SQL workflows to clean and filter multimodal data before model training. I used Z-Score anomaly detection and Power BI dashboards to monitor data quality and model performance.
As a freelance AI Evaluator & RLHF Specialist, I evaluate text, image, and code outputs, assess Vietnamese localization, and annotate multimodal data. Earlier, as a Data Processing Intern at VIETNAM INDUSTRIAL PACKAGING CO., LTD (IPVN), I cleaned and standardized production logs, improving data reliability by 25%.
