Chibuike Dike

Key Skills

Software

Label Studio

Top Subject Matter

Object Detection

Image Annotation

Sentiment Analysis

Top Data Types

Image

Text

Video

Top Task Types

Bounding Box

Classification

Polygon

Entity (NER) Classification

Segmentation

Freelancer Overview

Data Analyst and Annotator with experience in labelling image, video, and text datasets and supporting AI training data workflows. Work covers classification, bounding boxes, segmentation, and NLP tasks such as sentiment analysis and named entity recognition, along with evaluation of AI outputs for accuracy, relevance, and consistency. Uses Python, Excel, and Label Studio to clean data, prepare structured datasets in CSV and JSON formats, and carry out quality checks. Experience includes object detection and text classification tasks, with consistent delivery through clear guideline adherence.

Labeling Experience

Data Analyst and Annotation (Freelance)

TextClassification

Performed sentiment analysis and text classification tasks using structured labeling methodologies. Evaluated AI-generated textual outputs for accuracy, bias, and error identification based on provided guidelines. Cleaned and validated text datasets for downstream machine learning applications. • Conducted annotation in accordance with defined project requirements • Utilized Excel and Python for data processing tasks • Rated and reviewed AI responses for relevance and consistency • Delivered annotated text datasets in standardized formats for further analysis.

Performed sentiment analysis and text classification tasks using structured labeling methodologies. Evaluated AI-generated textual outputs for accuracy, bias, and error identification based on provided guidelines. Cleaned and validated text datasets for downstream machine learning applications. • Conducted annotation in accordance with defined project requirements • Utilized Excel and Python for data processing tasks • Rated and reviewed AI responses for relevance and consistency • Delivered annotated text datasets in standardized formats for further analysis.

2025 - Present

Data Analyst and Annotation (Freelance)

Label StudioImageBounding Box

Annotated images using bounding boxes and segmentation tools for object detection tasks. Ensured consistent dataset processing and followed strict annotation guidelines to maintain accuracy and quality. Conducted quality checks and performed data cleaning to prepare structured datasets for machine learning. • Used Label Studio and Python for annotation and dataset preparation • Reviewed and rated labeled outputs to ensure guideline adherence • Evaluated accuracy, relevance, and consistency of AI-generated outputs • Prepared and validated data in JSON and CSV formats before project delivery.

Annotated images using bounding boxes and segmentation tools for object detection tasks. Ensured consistent dataset processing and followed strict annotation guidelines to maintain accuracy and quality. Conducted quality checks and performed data cleaning to prepare structured datasets for machine learning. • Used Label Studio and Python for annotation and dataset preparation • Reviewed and rated labeled outputs to ensure guideline adherence • Evaluated accuracy, relevance, and consistency of AI-generated outputs • Prepared and validated data in JSON and CSV formats before project delivery.

2025 - Present

Education

Work History