Offiah C.

Key Skills

Software

Appen

CrowdSource

Other

Top Subject Matter

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Top Data Types

Video

Text

Audio

Top Task Types

Data Collection

Transcription

Text Summarization

Question Answering

Object Detection

Freelancer Overview

Experienced AI Data Specialist with a proven track record in generating high-quality ground truth datasets for complex machine learning models. Adept at precise text, image, and video annotation, including bounding boxes, semantic segmentation, and RLHF (Reinforcement Learning from Human Feedback) evaluations.Consistently maintains over 98% accuracy while evaluating Large Language Model outputs for safety, relevance, and factual correctness. Experienced in collaborating directly with ML engineers to clarify edge-case guidelines, isolate corrupted data, and accelerate overall model development pipelines.

Education