Christina K.

Key Skills

Software

Other

Appen

Data Annotation Tech

Top Subject Matter

Artificial Intelligence

Large Language Models

Natural Language Processing

Top Data Types

Text

Top Task Types

Classification

Question Answering

Evaluation/Rating

Freelancer Overview

AI Content Evaluator (Generalist). Brings 11+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include DataAnnotation and Appen. Education includes Certificate, Coursera (2022). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

AI Content Evaluator (Generalist)

TextClassification

This role focuses on evaluating and rating Large Language Model (LLM) outputs for accuracy and logical consistency. The specialist reviews AI-generated text, identifies hallucinations or formatting issues, and documents safety concerns. Continuous, detailed feedback is provided to refine the AI model's helpfulness and reliability. • Performed accuracy assessments on AI-generated responses • Identified and documented hallucinations and safety violations • Provided detailed structured feedback to improve model training • Ensured content alignment with factual and logical standards.

2024 - Present

Data Evaluator

AppenTextClassification

As a data evaluator, the primary responsibility was to contribute to high-quality labeled data for machine learning applications. This involved adhering to strict guidelines for labeling text data and performing quality assurance tasks. The work ensured data accuracy and supported AI development initiatives. • Contributed to structured data labeling projects • Followed strict guidelines for data annotation • Performed quality assurance checks on labeled data • Supported machine learning development for client deliverables.

2023 - 2024

Education

Work History