Samuel U.

Key Skills

Software

Appen

Other

Top Subject Matter

AI and machine learning training datasets (text annotation)

AI and machine learning training datasets (image annotation)

AI and machine learning training datasets (audio annotation)

Top Data Types

Text

Image

Audio

Document

Top Task Types

Classification

Entity (NER) Classification

Freelancer Overview

Freelance Data Annotator — CrowdGen (Formerly Appen). Core strengths include Appen and Other. Education includes Certificate, University of Lagos (2024). AI-training focus includes data types such as Text, Image, and Audio and labeling workflows including Classification and Entity (NER) Classification.

Labeling Experience

Data Annotation Contributor — RWS (AI Data Services / Language & AI Solutions)

OtherTextEntity (NER) Classification

Contributed as a Data Annotation Contributor with RWS (AI Data Services / Language & AI Solutions) on linguistic and NLP-related annotation tasks. Classified and reviewed datasets to support natural language processing (NLP) models while ensuring consistency with client-specific instructions. Supported quality assurance by flagging unclear or low-quality data for resolution. • Performed text-based labeling and linguistic annotation tasks. • Classified and reviewed datasets for NLP model training. • Ensured annotation consistency and accuracy per client requirements. • Flagged problematic or low-quality data to support QA.

2024 - Present

Freelance Data Annotator — CrowdGen (Formerly Appen)

AppenAudioClassification

Worked on CrowdGen (formerly Appen) as a Freelance Data Annotator, labeling audio datasets to support AI and machine learning initiatives. Followed detailed annotation rules to ensure reliable labeling for downstream model development. Performed validation and review tasks to enhance dataset quality and consistency. • Labeled and annotated audio datasets for AI/ML projects. • Maintained consistency with annotation guidelines across tasks. • Completed data validation and quality review work. • Achieved required productivity and quality thresholds.

2024 - Present

Education

Work History