Yanjun X.

Key Skills

Software

VoTT

Other

Top Subject Matter

AI Language Model Training

Top Data Types

Text

Image

Audio

Top Task Types

Entity (NER) Classification

Freelancer Overview

AI Data Annotator & Data Quality Inspector. Core strengths include Label Studio. Education includes College Degree (2010). AI-training focus includes data types such as Text and labeling workflows including Entity (NER) Classification.

Labeling Experience

AI Data Annotator & Data Quality Inspector

Label StudioTextEntity (NER) Classification

As a remote AI Data Annotator & Data Quality Inspector, I performed Chinese text annotation for language model training. My work included entity recognition, intention classification, and conversational data cleaning, consistently maintaining a high accuracy rate above 98%. I also evaluated AI model responses for fluency, safety, and logical coherence. • Labeled entities, intents, and relationships in text data to support large language model development. • Conducted content evaluation and provided optimization feedback for AI model output. • Used tools like Label Studio, Excel, and Google Sheets for annotation and batch processing. • Sorted and filtered data for quality assurance, strictly following confidentiality guidelines.

2022 - Present

Education

Work History