Roseline Ohale

Key Skills

Software

Remotasks

Other

Top Subject Matter

Object detection

image annotation

speech recognition

Top Data Types

Image

Text

Document

Top Task Types

Bounding Box

Classification

Freelancer Overview

Freelance Data Annotator. Brings 5+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Remotasks and Other. Education includes Bachelor of Science, University of Nigeria Nsukka (2017). AI-training focus includes data types such as Image and labeling workflows including Bounding Box and Classification.

Labeling Experience

Freelance Data Annotator

RemotasksImageBounding Box

I labeled images for object detection tasks using bounding boxes, polygons, and keypoints. Audio clips were transcribed and labeled for disfluencies to support speech recognition models. Ambiguous or low-quality data was flagged and reported with clear reasoning to project leads. • Maintained a consistency rate of 96% across review passes. • Followed strict style guides while providing feedback on edge cases. • Worked for Remotasks and Appen on a freelance contract basis. • Used proprietary tools for all tasks as part of remote annotation work.

I labeled images for object detection tasks using bounding boxes, polygons, and keypoints. Audio clips were transcribed and labeled for disfluencies to support speech recognition models. Ambiguous or low-quality data was flagged and reported with clear reasoning to project leads. • Maintained a consistency rate of 96% across review passes. • Followed strict style guides while providing feedback on edge cases. • Worked for Remotasks and Appen on a freelance contract basis. • Used proprietary tools for all tasks as part of remote annotation work.

2023 - Present

Quality Control Assistant (Volunteer, Local Library)

OtherImageClassification

I digitized and tagged over 500 historical photos with descriptive metadata for archival purposes. Entries submitted by other volunteers were double-checked for accuracy and consistency. Ambiguous images were labeled with explanatory notes for clarity and future reference. • Ensured a 98% accuracy rate in detecting errors or mismatched tags. • Improved the quality of digital archives through detailed annotation. • Utilized careful review processes to enhance historical data labeling. • Volunteered as a quality control assistant in a library setting.

I digitized and tagged over 500 historical photos with descriptive metadata for archival purposes. Entries submitted by other volunteers were double-checked for accuracy and consistency. Ambiguous images were labeled with explanatory notes for clarity and future reference. • Ensured a 98% accuracy rate in detecting errors or mismatched tags. • Improved the quality of digital archives through detailed annotation. • Utilized careful review processes to enhance historical data labeling. • Volunteered as a quality control assistant in a library setting.

2020 - 2023

Education

Work History