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Calton Onchari

Data Labeling & Annotation Practice (Independent)

Kenya flagNairobi, Kenya
IntermediateLabel Studio

Key Skills

Software

Label StudioLabel Studio

Top Subject Matter

AI/ML Text Annotation
Basic Image Annotation for AI Models

Top Data Types

TextText
ImageImage

Top Task Types

Classification

Freelancer Overview

Data Labeling & Annotation Practice (Independent). Core strengths include Label Studio. AI-training focus includes data types such as Text and Image and labeling workflows including Classification.

Intermediate

Labeling Experience

Label Studio

Image Classification & Tagging (Independent Practice)

Label StudioImageClassification
During independent practice, I performed basic object tagging and image classification tasks. I utilized online annotation tools and spreadsheets for organizing and reviewing labeled images. My image labeling followed strict guidelines for accuracy and uniformity. • Tagged objects in images for classification • Used Label Studio and other online tools • Applied consistent quality standards • Managed labeled image datasets in Google Sheets.

During independent practice, I performed basic object tagging and image classification tasks. I utilized online annotation tools and spreadsheets for organizing and reviewing labeled images. My image labeling followed strict guidelines for accuracy and uniformity. • Tagged objects in images for classification • Used Label Studio and other online tools • Applied consistent quality standards • Managed labeled image datasets in Google Sheets.

2024 - Present
Label Studio

Data Labeling & Annotation Practice (Independent)

Label StudioTextClassification
As an independent Data Labeling & Annotation Specialist, I labeled datasets for sentiment analysis, named entity recognition, and text classification. I followed comprehensive annotation guidelines to ensure high quality and consistency in my work. I regularly performed quality checks and managed datasets using spreadsheet tools. • Labeled text for sentiment (Positive/Negative/Neutral) • Categorized and tagged news articles by topic • Tagged entities such as Names, Locations, and Organizations • Conducted quality assurance of text-labeled datasets.

As an independent Data Labeling & Annotation Specialist, I labeled datasets for sentiment analysis, named entity recognition, and text classification. I followed comprehensive annotation guidelines to ensure high quality and consistency in my work. I regularly performed quality checks and managed datasets using spreadsheet tools. • Labeled text for sentiment (Positive/Negative/Neutral) • Categorized and tagged news articles by topic • Tagged entities such as Names, Locations, and Organizations • Conducted quality assurance of text-labeled datasets.

2024 - Present

Education

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