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Hezron Wangila

Hezron Wangila

Experienced data labeler, computer vision, NLP, audio lab and video labeler

Kenya flagNairobi, Kenya
$10.80/hrExpertAws SagemakerAppenCloudfactory

Key Skills

Software

AWS SageMakerAWS SageMaker
AppenAppen
CloudFactoryCloudFactory
CVATCVAT
DataloopDataloop
LabelboxLabelbox
RemotasksRemotasks
SamaSama
Scale AIScale AI

Top Subject Matter

No subject matter listed

Top Data Types

ImageImage
TextText
VideoVideo

Top Task Types

Action Recognition
Segmentation
Text Generation
Text Summarization
Tracking

Freelancer Overview

I have a comprehensive experience in data labeling and training data projects in AI applications in image, video, and text annotation. I can do bounding boxes, segmentation, frame by frame labeling of the video, entity recognition and sentiment tagging, with a great emphasis on accuracy, efficiency and consistency. I have also been involved in the evaluation of the LLCM and multilingual text annotation (English and Spanish), thus I can also make a contribution to natural language projects. Besides basic annotation, I also have strengths in quality checks and productivity monitoring, and in ensuring that datasets are up to project-standard. I have been able to work with international and remote teams successfully, and I am not afraid to use tools such as SQL and Excel to track progress. My flexibility and prior experience in working with larger video datasets in particular can place me in a good position to take part in various AI training projects.

ExpertSwahiliFrenchEnglish

Labeling Experience

Sama

Video labeling

SamaVideoClassificationText Generation
My participation in a video AI glasses project taught me powerful skills in video annotation, summarizing instruction, and labeling in context. I trained to describe what the AI glasses have captured (e.g. objects, actions, and environments) and summarize spoken instructions correctly so that the system was able to carry out tasks more efficiently. I also acquired skills in maintaining a high level of quality, consistency, clarity, and accuracy in all annotations. This involved matching labeled data with project specifications, ensuring productivity standards, and increasing the reliability of the dataset in real world applications of AI. The skills also enhanced my capability to work on complex video and instruction based AI training programs.

My participation in a video AI glasses project taught me powerful skills in video annotation, summarizing instruction, and labeling in context. I trained to describe what the AI glasses have captured (e.g. objects, actions, and environments) and summarize spoken instructions correctly so that the system was able to carry out tasks more efficiently. I also acquired skills in maintaining a high level of quality, consistency, clarity, and accuracy in all annotations. This involved matching labeled data with project specifications, ensuring productivity standards, and increasing the reliability of the dataset in real world applications of AI. The skills also enhanced my capability to work on complex video and instruction based AI training programs.

2022 - 2025

Education

S

Sama school

AI 101, AI 200 certifications, Digital literacy course. Future of AI course. Internet literacy. Work readiness. Working remotely. Raster primer. Raster super pixel, Paint brush, Fill. AI 200: Vector lines and Arrows. Vector Primer. Video primer. Privacy and security . Handling sensitive data protocol. Communicates clearly.

AI 101, AI 200 certifications
2022 - 2024
T

Technical University of Mombasa

Diploma, Community Health and HIV Management

Diploma
2017 - 2019

Work History

C

CCI Kenya

Customer Support Specialist

Thika Road
2023 - Present
J

Jiji Kenya

Online Sales Representative

Parklands
2020 - 2021