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Chukwuemeka Okoroafor

Chukwuemeka Okoroafor

Data Annotation Volunteer – Independent AI Data Projects

Nigeria flagLagos, Nigeria
$20.00/hrIntermediateLabel StudioScale AIAppen

Key Skills

Software

Label StudioLabel Studio
Scale AIScale AI
AppenAppen
LionbridgeLionbridge

Top Subject Matter

Biomedical Domain Expertise
General NLP
Sentiment Analysis

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

ClassificationClassification

Freelancer Overview

Data Annotation Volunteer – Independent AI Data Projects. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Label Studio, Scale AI, and Appen. Education includes Bachelor of Medical Laboratory Science, Abia State University (2022). AI-training focus includes data types such as Text and labeling workflows including Classification.

IntermediateEnglish

Labeling Experience

Label Studio

Data Annotation Volunteer – Independent AI Data Projects

Label StudioTextClassification
As a Data Annotation Volunteer, I carried out text classification, sentiment labeling, and entity recognition tasks for AI/NLP training datasets. I maintained a high quality accuracy rate through strict adherence to annotation guidelines. I utilized industry annotation platforms and leveraged medical domain knowledge for labeling biomedical text data. • Reviewed and validated annotations for accuracy and consistency. • Collaborated with remote teams to meet deadlines and quotas. • Applied research and analytical skills to improve labeling quality. • Ensured sensitive data confidentiality and responsible data handling.

As a Data Annotation Volunteer, I carried out text classification, sentiment labeling, and entity recognition tasks for AI/NLP training datasets. I maintained a high quality accuracy rate through strict adherence to annotation guidelines. I utilized industry annotation platforms and leveraged medical domain knowledge for labeling biomedical text data. • Reviewed and validated annotations for accuracy and consistency. • Collaborated with remote teams to meet deadlines and quotas. • Applied research and analytical skills to improve labeling quality. • Ensured sensitive data confidentiality and responsible data handling.

2023 - Present

Education

A

Abia State University

Bachelor of Medical Laboratory Science, Medical Laboratory Science

Bachelor of Medical Laboratory Science
2017 - 2022

Work History

T

Teaching Hospital

Medical Laboratory Intern

Aba
2021 - 2022
A

Abia State University

Research & Data Collection Assistant

Uturu
2020 - 2021