Sheng H.

Key Skills

Software

Other

Top Subject Matter

Natural Language Processing (NLP)

Top Data Types

Text

Image

Video

Top Task Types

Classification

Computer Programming/Coding

Question Answering

Freelancer Overview

Data Processing Engineer - Data Labeling Project. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Science, 北京语言大学 (2025). AI-training focus includes data types such as Text and labeling workflows including Classification.

Labeling Experience

Data Processing Engineer - Data Labeling Project

OtherTextClassification

Led the end-to-end workflow of data cleaning and annotation for over 15,000 structured and unstructured text samples. Developed standardized labeling protocols to unify 12 label categories with consistency exceeding 95%. Performed dataset partitioning and annotation to support iterative NLP model training cycles. • Utilized Python and libraries like Pandas, Regex, and OpenPyXL to automate data deduplication and transformation. • Improved data usability by 68% and boosted processing efficiency by 80% over manual approaches. • Independently handled training, validation, and test set annotation tasks for five NLP model versions. • Contributed directly to a 12.5% average increase in model F1 scores through accurate and consistent labeling.

2022 - 2022

Education

Work History