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Rosemund Ofoegbu

Rosemund Ofoegbu

Expert Data Annotator (Image/Video/Text) - Machine Learning & AI Trainer

NIGERIA flag
Lagos, Nigeria
$20.00/hrExpertOther

Key Skills

Software

Other

Top Subject Matter

No subject matter listed

Top Data Types

VideoVideo

Top Label Types

Emotion Recognition
Action Recognition
Tracking
Text Summarization

Freelancer Overview

I am a detail-oriented data annotator and quality analyst with over 4.5 years of hands-on experience delivering high-accuracy image, text, and video labeling for AI and machine learning projects. My expertise spans object detection, classification, semantic labeling, and data auditing, ensuring datasets are clean, reliable, and fully compliant with project guidelines. I am highly skilled in adapting to new annotation tools and workflows, thrive in remote and collaborative team environments, and consistently meet tight deadlines while maintaining 99%+ accuracy. My background includes mentoring team members, managing quality assurance, and supporting projects in customer service and machine learning data preparation. I am committed to transforming raw data into actionable, high-quality training assets that drive successful AI outcomes.

ExpertEnglishIgbo

Labeling Experience

Hoglee

OtherVideoEmotion RecognitionAction Recognition
The Hoglee project created annotated video datasets to advance computer vision and multimodal AI models, targeting human behavior analysis, affective computing, surveillance, and emotion-aware systems with labeled data for emotions, actions, and movements in diverse scenarios. I annotated short to medium clips: emotion recognition (labeling facial/body expressions for happy, sad, angry, surprised, neutral across frames); action recognition (classifying/timestamping walking, running, gesturing, object interaction, complex behaviors like hugging); tracking (bounding box/keypoint for consistent identity/trajectory, integrated with labels). Tasks followed guidelines for categories, confidence, and edge cases using tools. I contributed to thousands of diverse clips for robust AI training. Achieved 95%+ agreement and 99%+ precision via strict adherence, reviews, metrics, feedback, and ethics compliance.

The Hoglee project created annotated video datasets to advance computer vision and multimodal AI models, targeting human behavior analysis, affective computing, surveillance, and emotion-aware systems with labeled data for emotions, actions, and movements in diverse scenarios. I annotated short to medium clips: emotion recognition (labeling facial/body expressions for happy, sad, angry, surprised, neutral across frames); action recognition (classifying/timestamping walking, running, gesturing, object interaction, complex behaviors like hugging); tracking (bounding box/keypoint for consistent identity/trajectory, integrated with labels). Tasks followed guidelines for categories, confidence, and edge cases using tools. I contributed to thousands of diverse clips for robust AI training. Achieved 95%+ agreement and 99%+ precision via strict adherence, reviews, metrics, feedback, and ethics compliance.

2024 - 2025

Education

U

University of Lagos

Master of Science, Mass Communication

Master of Science
2020 - 2021
R

Renaissance University

Bachelor of Science, Mass Communication

Bachelor of Science
2013 - 2017

Work History

U

Ufuoma Baptist School

English Teacher

Effurun, Warri
2019 - 2020
D

DoubleView and HillyCos Media

Entertainment Writer

Owerri
2017 - 2017