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Chrys Shem

Chrys Shem

AI Sociolinguist & Evaluation Framework Specialist

Kenya flagNairobi, Kenya
$35.00/hrExpertOther

Key Skills

Software

Other

Top Subject Matter

Cultural evaluation
African languages
Sociolinguistics Domain Expertise

Top Data Types

TextText

Top Task Types

Evaluation/RatingEvaluation/Rating

Freelancer Overview

AI Sociolinguist & Evaluation Framework Specialist. Brings 34+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Other. Education includes a Master of Medical Sociology from the University of Nairobi and a Bachelor of Arts from Egerton University. AI-training focus includes data types such as Text and labeling workflows, including Evaluation and Rating.

ExpertEnglishSwahili

Labeling Experience

AI Sociolinguist & Evaluation Framework Specialist

Text
I developed and used a five-dimension scoring tool to evaluate AI outputs in multilingual African contexts, creating annotation frameworks and guidelines for edge linguistic cases. My work included designing adversarial (red teaming) scenarios targeting failure modes such as Swahili proverb misinterpretation, Sheng code-switching, and high-context meaning distortion. Additionally, I conducted RLHF preference ranking evaluations, assessing outputs for factual, creative, advisory, and sensitive prompts, and classified AI outputs based on bias, misinformation, and cultural safety. • Authored annotation guidelines and cultural evaluation rubrics for Swahili and East African languages • Applied adversarial testing to surface model weaknesses undetectable by automated tools • Executed RLHF evaluations with detailed sociolinguistic rationales for model training • Translated qualitative insights into quantitative benchmarks for engineering teams.

I developed and used a five-dimension scoring tool to evaluate AI outputs in multilingual African contexts, creating annotation frameworks and guidelines for edge linguistic cases. My work included designing adversarial (red teaming) scenarios targeting failure modes such as Swahili proverb misinterpretation, Sheng code-switching, and high-context meaning distortion. Additionally, I conducted RLHF preference ranking evaluations, assessing outputs for factual, creative, advisory, and sensitive prompts, and classified AI outputs based on bias, misinformation, and cultural safety. • Authored annotation guidelines and cultural evaluation rubrics for Swahili and East African languages • Applied adversarial testing to surface model weaknesses undetectable by automated tools • Executed RLHF evaluations with detailed sociolinguistic rationales for model training • Translated qualitative insights into quantitative benchmarks for engineering teams.

2023 - Present

Contributor, Masakhane Research Foundation (African NLP Community)

OtherText
I participated in the evaluation and benchmarking of African language NLP datasets and models, providing sociolinguistic review and cultural annotation expertise. This involved reviewing labeled data for accuracy, cultural appropriateness, and linguistic nuance in low-resource languages. I engaged in collaborative projects to assess and improve data quality for African language AI, ensuring proper representation and reducing model bias. • Contributed sociolinguistic feedback on model outputs and dataset labeling tasks • Helped design cultural alignment taxonomies for annotation in Swahili and related dialects • Evaluated cross-lingual meaning transfer and misalignment • Provided best practices for bias detection and annotation in African language contexts.

I participated in the evaluation and benchmarking of African language NLP datasets and models, providing sociolinguistic review and cultural annotation expertise. This involved reviewing labeled data for accuracy, cultural appropriateness, and linguistic nuance in low-resource languages. I engaged in collaborative projects to assess and improve data quality for African language AI, ensuring proper representation and reducing model bias. • Contributed sociolinguistic feedback on model outputs and dataset labeling tasks • Helped design cultural alignment taxonomies for annotation in Swahili and related dialects • Evaluated cross-lingual meaning transfer and misalignment • Provided best practices for bias detection and annotation in African language contexts.

2021 - Present

Regional Director — Communication Evaluation & Knowledge Quality (AI-adjacent responsibilities)

OtherText
I conducted evaluation of multilingual policy and knowledge datasets, introducing rubric-based assessment protocols to standardize and improve content review. My work included designing evaluation rubrics directly transferable to structured AI annotation and quality control. I managed large-scale review of annotated textual data for language, tone, and factual accuracy across communications. • Developed multi-criteria review rubrics for documentation and communication datasets • Led efforts in error reduction and alignment for annotated content • Enhanced review consistency across diverse language registers in multilingual settings • Built foundational processes for large-scale text annotation and QA.

I conducted evaluation of multilingual policy and knowledge datasets, introducing rubric-based assessment protocols to standardize and improve content review. My work included designing evaluation rubrics directly transferable to structured AI annotation and quality control. I managed large-scale review of annotated textual data for language, tone, and factual accuracy across communications. • Developed multi-criteria review rubrics for documentation and communication datasets • Led efforts in error reduction and alignment for annotated content • Enhanced review consistency across diverse language registers in multilingual settings • Built foundational processes for large-scale text annotation and QA.

2020 - 2023

Education

E

Egerton University

Bachelor of Arts, Sociology and Linguistics

Bachelor of Arts
Not specified
U

University of Nairobi

Master of Medical Sociology, Medical Sociology

Master of Medical Sociology
Not specified

Work History

R

Rotalia Communications

AI Sociolinguist & Evaluation Framework Specialist

Nairobi
2023 - Present
P

Population Reference Bureau

Regional Director, Communication Evaluation & Knowledge Quality

Nairobi
2019 - 2023