For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
D

Dennis Ok

Freelance AI Training & Data Annotation Specialist

United Kingdom flagSheffield, United Kingdom
$20.00/hrExpertAppen

Key Skills

Software

AppenAppen

Top Subject Matter

AI Model Training & Evaluation
Content Moderation
Speech Recognition

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

Entity (NER) ClassificationEntity (NER) Classification

Freelancer Overview

Freelance AI Training & Data Annotation Specialist. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen. Education includes Master of Science, University of London (2019) and Bachelor of Arts, University of Texas at Austin (2016). AI-training focus includes data types such as Text and labeling workflows including Entity (NER) Classification.

ExpertEnglish

Labeling Experience

Appen

Freelance AI Training & Data Annotation Specialist

AppenTextEntity Ner Classification
As a Freelance AI Training & Data Annotation Specialist, I performed large-scale annotation projects involving text, image, audio, and video data for multiple leading annotation platforms. My primary responsibility included delivering over 15,000 data annotation assignments, consistently maintaining an outstanding 98.5% accuracy rate. I played an integral role in linguistic assessment, speech transcription, content moderation, and annotation protocol optimization initiatives. • Executed complex annotation initiatives improving AI model accuracy across diverse domains. • Processed and transcribed 500+ hours of audio data for speech recognition systems with accurate timestamping. • Performed search engine and conversational AI evaluation, boosting response quality through precise labeling. • Adapted swiftly to new annotation platforms and tools, integrating seamlessly with multidisciplinary teams.

As a Freelance AI Training & Data Annotation Specialist, I performed large-scale annotation projects involving text, image, audio, and video data for multiple leading annotation platforms. My primary responsibility included delivering over 15,000 data annotation assignments, consistently maintaining an outstanding 98.5% accuracy rate. I played an integral role in linguistic assessment, speech transcription, content moderation, and annotation protocol optimization initiatives. • Executed complex annotation initiatives improving AI model accuracy across diverse domains. • Processed and transcribed 500+ hours of audio data for speech recognition systems with accurate timestamping. • Performed search engine and conversational AI evaluation, boosting response quality through precise labeling. • Adapted swiftly to new annotation platforms and tools, integrating seamlessly with multidisciplinary teams.

2020 - Present

Education

U

University of London

Master of Science, Data Annotation Science

Master of Science
2017 - 2019
U

University of Texas at Austin

Bachelor of Arts, Linguistics

Bachelor of Arts
2012 - 2016

Work History

I

Independent Contractor

Online Research & Data Collection Specialist

Sheffield
2019 - 2019