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Lauretta Ewhenke

AI Data Annotation Specialist – Freelance

Nigeria flagCalabar, Nigeria
ExpertOther

Key Skills

Software

Other

Top Subject Matter

Natural Language Processing
Audio Transcription
AI Text Generation

Top Data Types

AudioAudio
TextText

Top Task Types

TranscriptionTranscription

Freelancer Overview

AI Data Annotation Specialist – Freelance. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Science, University of Cross River State (2022). AI-training focus includes data types such as Audio and Text and labeling workflows including Transcription, Evaluation, and Rating.

Expert

Labeling Experience

AI Data Annotation Specialist – Freelance

OtherAudioTranscription
As an AI Data Annotation Specialist, I evaluated and corrected AI-generated transcriptions to improve accuracy. I annotated large datasets using structured taxonomies and compared outputs from multiple AI models. My work involved identifying recurring transcription and language-model errors and documenting improvement patterns. • Reviewed and corrected transcriptions for linguistic and contextual errors. • Annotated datasets with detailed guidelines and structured taxonomies. • Provided qualitative feedback to support AI model training. • Evaluated large volumes of audio and text data for quality assurance.

As an AI Data Annotation Specialist, I evaluated and corrected AI-generated transcriptions to improve accuracy. I annotated large datasets using structured taxonomies and compared outputs from multiple AI models. My work involved identifying recurring transcription and language-model errors and documenting improvement patterns. • Reviewed and corrected transcriptions for linguistic and contextual errors. • Annotated datasets with detailed guidelines and structured taxonomies. • Provided qualitative feedback to support AI model training. • Evaluated large volumes of audio and text data for quality assurance.

2023 - Present

Content Reviewer & Quality Analyst – Upwork

OtherText
As a Content Reviewer & Quality Analyst, I reviewed AI-generated text for grammar, clarity, coherence, and factual accuracy. I provided structured feedback to improve quality and relevance of AI-generated responses. My responsibilities included analyzing recurring error patterns and supporting dataset refinement and model optimization. • Delivered structured feedback on AI-generated texts. • Analyzed and prioritized corrections in training datasets. • Evaluated outputs for coherence and factual accuracy. • Supported refinement and optimization of NLP datasets.

As a Content Reviewer & Quality Analyst, I reviewed AI-generated text for grammar, clarity, coherence, and factual accuracy. I provided structured feedback to improve quality and relevance of AI-generated responses. My responsibilities included analyzing recurring error patterns and supporting dataset refinement and model optimization. • Delivered structured feedback on AI-generated texts. • Analyzed and prioritized corrections in training datasets. • Evaluated outputs for coherence and factual accuracy. • Supported refinement and optimization of NLP datasets.

2022 - 2022

NLP Research Assistant – University of Cross River State

OtherAudioTranscription
During my internship, I annotated audio and text datasets for machine learning experiments and model training. I contributed to testing and evaluating NLP models for contextual accuracy and language understanding. I assisted with reporting on model evaluation metrics and improvement areas. • Annotated and labeled audio and text samples for NLP research. • Participated in evaluation of transcription and language models. • Supported improvements in AI model contextual accuracy. • Prepared reports on evaluation results.

During my internship, I annotated audio and text datasets for machine learning experiments and model training. I contributed to testing and evaluating NLP models for contextual accuracy and language understanding. I assisted with reporting on model evaluation metrics and improvement areas. • Annotated and labeled audio and text samples for NLP research. • Participated in evaluation of transcription and language models. • Supported improvements in AI model contextual accuracy. • Prepared reports on evaluation results.

2021 - 2022

Education

U

University of Cross River State

Bachelor of Science, Computer Science

Bachelor of Science
2018 - 2022

Work History

U

University of Cross River State

Software Developer / Research Assistant

Calabar
2021 - 2022