Kelechi O.

Key Skills

Software

Other

Top Subject Matter

Computer vision image annotation

NLP text classification and sentiment/intent labeling

AI training data preparation and dataset quality assurance

Top Data Types

Image

Text

Document

Top Task Types

Bounding Box

Classification

Freelancer Overview

Image Annotation Project. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other and Microsoft Excel. AI-training focus includes data types such as Image, Text, and Document and labeling workflows including Bounding Box, Classification, and Evaluation.

Labeling Experience

Data Entry / Administrative Experience (ATS Technology)

TextClassification

Entered, updated, and verified large datasets for accuracy and completeness. Performed quality checks to identify and correct data entry errors. Maintained organized and accurate records using spreadsheet tools to support dataset quality. • Entered, updated, and verified large datasets • Conducted quality checks to correct errors • Maintained accurate records and reports • Used spreadsheets for data management and verification

2024

AI Training Data Preparation

OtherDocument

Prepared AI training datasets by reviewing data for accuracy and completeness. Corrected labeling inconsistencies and formatting issues to improve dataset reliability. Assisted in producing higher-quality training data for machine learning applications. • Reviewed datasets for accuracy and completeness • Corrected labeling inconsistencies and formatting errors • Ensured improved dataset readiness for ML training • Supported end-to-end AI training data preparation

2024

Text Classification Project

OtherTextClassification

Performed text classification by categorizing text inputs into predefined classes. Labeled sentiment and intent within the dataset to support downstream machine learning tasks. Maintained annotation quality while meeting productivity goals. • Categorized text data into predefined classes • Labeled sentiment and intent • Verified annotation quality during throughput • Prepared labeled outputs for ML training workflows

2024

Image Annotation Project

OtherImageBounding Box

Worked on image annotation tasks using bounding boxes and object tagging methods to label visual content. Completed labeling according to provided guidelines, ensuring consistency across the dataset. Performed quality reviews before submission to reduce labeling errors and maintain guideline compliance. • Applied bounding boxes and object tagging for image datasets • Ensured consistency and accuracy against annotation guidelines • Conducted quality checks prior to project handoff • Supported productivity targets while maintaining label quality

2024

Education

Work History