Precious Musayayi

Key Skills

Software

Appen

Other

Top Subject Matter

AI Model Evaluation and Training

AI Training and Model Development

Data analysis

Top Data Types

Text

Audio

Document

Top Task Types

Classification

Freelancer Overview

Quality & Systems Evaluator. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen and Other. Education includes Bachelor of Technology, Federal University of Technology Akure (2025). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

Quality & Systems Evaluator

AppenText

As a Quality & Systems Evaluator at Appen, I performed data labeling and annotation for AI model training. My responsibilities included reviewing AI outputs, identifying errors, and refining training datasets. I ensured data quality by applying validation protocols and continuous evaluation. • Conducted precise data labeling and annotation on various datasets • Reviewed and rated AI model outputs for accuracy and patterns • Implemented quality assurance measures for enhanced model learning • Improved AI performance through iterative dataset refinements

As a Quality & Systems Evaluator at Appen, I performed data labeling and annotation for AI model training. My responsibilities included reviewing AI outputs, identifying errors, and refining training datasets. I ensured data quality by applying validation protocols and continuous evaluation. • Conducted precise data labeling and annotation on various datasets • Reviewed and rated AI model outputs for accuracy and patterns • Implemented quality assurance measures for enhanced model learning • Improved AI performance through iterative dataset refinements

2022 - Present

Data Analyst & AI Training Specialist

OtherTextClassification

As a Freelance Data Analyst & AI Training Specialist, I labeled and annotated text and audio datasets for machine learning model development. My tasks included cleaning and structuring data, executing labeling guidelines, and validating datasets for consistency. I provided structured feedback on AI outputs to enhance model performance. • Labeled and classified text and audio data for AI training • Applied annotation guidelines and validated data integrity • Evaluated AI outputs and provided improvement feedback • Supported diverse client projects focused on model optimization

As a Freelance Data Analyst & AI Training Specialist, I labeled and annotated text and audio datasets for machine learning model development. My tasks included cleaning and structuring data, executing labeling guidelines, and validating datasets for consistency. I provided structured feedback on AI outputs to enhance model performance. • Labeled and classified text and audio data for AI training • Applied annotation guidelines and validated data integrity • Evaluated AI outputs and provided improvement feedback • Supported diverse client projects focused on model optimization

2020 - 2023

Education

Work History