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C

Collins Odhiambo

Freelance AI Data Labeler — Annotation

KENYA flag
Nairobi, Kenya
$12.00/hrEntry LevelOtherCVAT

Key Skills

Software

Other
CVATCVAT

Top Subject Matter

Legal Services & Contract Review
Regulatory Compliance & Risk Analysis
Legal Research & Document Analysis

Top Data Types

AudioAudio
TextText
DocumentDocument
ImageImage

Top Task Types

Emotion Recognition
Classification
Transcription
Bounding Box

Freelancer Overview

Freelance AI Data Labeler — Image Annotation (Sports). Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include CVAT. Education includes Bachelor of Science, Kenyatta University (2019). AI-training focus includes data types such as Image and labeling workflows including Bounding Box.

Entry LevelEnglish

Labeling Experience

CVAT

Freelance AI Data Labeler — Image Annotation (Sports)

CVATImageBounding Box
I annotated sports video imagery datasets, specifically focusing on volleyball footage, using bounding boxes for object detection. My work included handling challenging scenarios such as blurred and occluded subjects. Leveraging tools like CVAT, I ensured precise labeling for use in computer vision model training. • Created bounding boxes for object detection in sports images. • Addressed scenarios with blurred or partially visible objects. • Used CVAT and web-based tools across multiple projects. • Met strict productivity and quality assurance benchmarks.

I annotated sports video imagery datasets, specifically focusing on volleyball footage, using bounding boxes for object detection. My work included handling challenging scenarios such as blurred and occluded subjects. Leveraging tools like CVAT, I ensured precise labeling for use in computer vision model training. • Created bounding boxes for object detection in sports images. • Addressed scenarios with blurred or partially visible objects. • Used CVAT and web-based tools across multiple projects. • Met strict productivity and quality assurance benchmarks.

2022 - Present

AI Data Labeler & Audio Evaluator (Transcription)

OtherAudioTranscription
I transcribed short-form audio content with a focus on accuracy and consistent formatting. My work was instrumental in building high-quality speech-to-text training datasets. I adhered to strict formatting and confidentiality requirements in all tasks. • Produced time-aligned transcriptions of spoken content. • Ensured high accuracy through careful listening. • Used Audacity and Excel/CSV workflows for processing. • Supported data validation and correction initiatives.

I transcribed short-form audio content with a focus on accuracy and consistent formatting. My work was instrumental in building high-quality speech-to-text training datasets. I adhered to strict formatting and confidentiality requirements in all tasks. • Produced time-aligned transcriptions of spoken content. • Ensured high accuracy through careful listening. • Used Audacity and Excel/CSV workflows for processing. • Supported data validation and correction initiatives.

2021 - Present

AI Data Labeler & Audio Evaluator (Chatbot Response Rating)

OtherText
I performed comprehensive evaluations of AI-generated chatbot responses for quality, safety, and guideline alignment. This role required critical linguistic judgment and consideration of appropriateness in AI conversations. My reviews informed AI model improvements and retraining. • Rated chatbot responses for accuracy and relevance. • Assessed safety and compliance with established standards. • Delivered structured feedback to guide model refinements. • Managed large volumes of dialog and conversation data.

I performed comprehensive evaluations of AI-generated chatbot responses for quality, safety, and guideline alignment. This role required critical linguistic judgment and consideration of appropriateness in AI conversations. My reviews informed AI model improvements and retraining. • Rated chatbot responses for accuracy and relevance. • Assessed safety and compliance with established standards. • Delivered structured feedback to guide model refinements. • Managed large volumes of dialog and conversation data.

2021 - Present

AI Data Labeler & Audio Evaluator (Text Classification)

OtherTextClassification
In my capacity as a data labeler, I executed text classification tasks focusing on sentiment, toxicity, and intent. I was accountable for accurately tagging text data according to detailed annotation guidelines. My work contributed to improving natural language processing models. • Classified text for sentiment and intent. • Ensured annotation quality and compliance adherence. • Utilized proprietary web-based tools and spreadsheets. • Provided feedback on edge cases and labeling ambiguities.

In my capacity as a data labeler, I executed text classification tasks focusing on sentiment, toxicity, and intent. I was accountable for accurately tagging text data according to detailed annotation guidelines. My work contributed to improving natural language processing models. • Classified text for sentiment and intent. • Ensured annotation quality and compliance adherence. • Utilized proprietary web-based tools and spreadsheets. • Provided feedback on edge cases and labeling ambiguities.

2021 - Present

AI Data Labeler & Audio Evaluator (Audio Labeling)

OtherAudioEmotion Recognition
As an AI Data Labeler & Audio Evaluator, I was responsible for labeling large-scale audio datasets and evaluating speech content. My duties included scoring clarity, pronunciation, naturalness, and the emotional tone of audio samples. I consistently delivered high-quality annotations while maintaining daily productivity targets. • Scored audio files for technical and emotional quality. • Applied guideline-based assessments to ensure data consistency. • Used web-based annotation tools and Audacity for labeling tasks. • Maintained strict data confidentiality measures.

As an AI Data Labeler & Audio Evaluator, I was responsible for labeling large-scale audio datasets and evaluating speech content. My duties included scoring clarity, pronunciation, naturalness, and the emotional tone of audio samples. I consistently delivered high-quality annotations while maintaining daily productivity targets. • Scored audio files for technical and emotional quality. • Applied guideline-based assessments to ensure data consistency. • Used web-based annotation tools and Audacity for labeling tasks. • Maintained strict data confidentiality measures.

2021 - Present

Education

K

Kenyatta University

Bachelor of Commerce, Data Analysis and Digital Systems

Bachelor of Commerce
2020
K

Kenyatta University

Bachelor of Science, Statistics

Bachelor of Science
2019

Work History

A

Appen / OneForma / MTurk

Freelance AI Data Labeler

Location not specified
2022 - Present
A

Akhen Globals

Freelance

Location not specified
2021 - Present