Oluwatosin Roselyn Samuel

Key Skills

Software

AWS SageMaker

Appen

Argilla

Clickworker

Encord

Toloka

Data Annotation Tech

Top Subject Matter

No subject matter listed

Top Data Types

Image

Text

Video

Top Task Types

Action Recognition

Audio Recording

Classification

Data Collection

Diagnosis

Freelancer Overview

An expert Detail-oriented and analytical Data Annotation Specialist with a strong background in labeling, categorizing, and interpreting data to enhance machine learning model performance. Skilled in maintaining high accuracy and consistency across diverse data sets including text, image, audio, and video content. Adept at using data labeling tools and adhering to project-specific guidelines to meet tight deadlines. Demonstrated ability to contribute to AI training datasets that improve product functionality, automation, and user experience. Committed to quality, precision, and continuous improvement in all annotation processes.

Labeling Experience

Standalone Error Tagging

Data Annotation TechImageQuestion AnsweringObject Detection

In this standalone error-tagging project, my scope included reviewing system-generated text and identifying errors across defined categories such as grammar, relevance, completeness, and correctness. My tasks involved tagging each error type, documenting patterns, and flagging repeated issues for review. The project was moderately large, involving thousands of text samples processed over several weeks. I ensured high-quality output by following strict annotation guidelines, maintaining consistency across tags, and performing routine accuracy checks to keep error detection reliable.

In this standalone error-tagging project, my scope included reviewing system-generated text and identifying errors across defined categories such as grammar, relevance, completeness, and correctness. My tasks involved tagging each error type, documenting patterns, and flagging repeated issues for review. The project was moderately large, involving thousands of text samples processed over several weeks. I ensured high-quality output by following strict annotation guidelines, maintaining consistency across tags, and performing routine accuracy checks to keep error detection reliable.

2024 - 2025

Education

Work History