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Koki Kamizono

Koki Kamizono

Japanese Linguistic and Cultural Expert

Japan flagOsaka, Japan
$20.00/hrIntermediateData Annotation TechLabelboxMercor

Key Skills

Software

Data Annotation TechData Annotation Tech
LabelboxLabelbox
MercorMercor
OneFormaOneForma
RemotasksRemotasks
Other
Internal/Proprietary Tooling

Top Subject Matter

LLM evaluation in Japanese
Japanese audio/video contents recognition
Japanese writing

Top Data Types

AudioAudio
DocumentDocument
ImageImage
TextText
VideoVideo

Top Task Types

Action Recognition
Audio Recording
Classification
Data Collection
Emotion Recognition
Evaluation Rating
Question Answering
Relationship
Segmentation
Translation Localization

Freelancer Overview

I am an experienced Japanese AI Trainer and bilingual freelancer with a strong background in data annotation, data labeling, and AI training data projects. My work on Upwork and with Japanese AI initiatives has allowed me to contribute to natural language processing tasks, ensuring high-quality and culturally accurate datasets for machine learning models. With native Japanese proficiency and advanced English skills, I excel at bridging language gaps in data projects. My attention to detail, communication abilities, and technical understanding enable me to deliver precise labeling and annotation for diverse AI applications.

IntermediateEnglishJapanese

Labeling Experience

Labelbox

Freelance Linguist / Translator / AI Annotator

LabelboxTextEvaluation Rating
I completed over 100 projects focused on Japanese-English translation, linguistic review, and data annotation for generative AI models. My responsibilities included linguistic QA, prompt engineering, and enhancing training datasets for natural language processing. I utilized industry-leading annotation platforms including Labelbox and Deepdub.ai to ensure high standards of quality and accuracy. • Specialized in prompt engineering and data annotation for generative models. • Performed precise linguistic QA for Japanese and English text data. • Used a variety of NLP-focused annotation tools to label and evaluate data. • Maintained a consistent 5-star rating on Upwork for reliability and quality.

I completed over 100 projects focused on Japanese-English translation, linguistic review, and data annotation for generative AI models. My responsibilities included linguistic QA, prompt engineering, and enhancing training datasets for natural language processing. I utilized industry-leading annotation platforms including Labelbox and Deepdub.ai to ensure high standards of quality and accuracy. • Specialized in prompt engineering and data annotation for generative models. • Performed precise linguistic QA for Japanese and English text data. • Used a variety of NLP-focused annotation tools to label and evaluate data. • Maintained a consistent 5-star rating on Upwork for reliability and quality.

2021
Labelbox

Japanese Annotator (Contract)

LabelboxTextEvaluation Rating
In my position as a Japanese Annotator, I audited text datasets for machine learning and NLP applications. My main duties involved verifying prompt consistency, tone accuracy, and factual correctness of AI-generated outputs. I carefully ensured the quality and reliability of Japanese text data used in language models. • Reviewed and audited machine learning text datasets for Japanese NLP. • Checked for tone, consistency, and factual correctness in annotations. • Ensured outputs met required standards for AI development. • Completed the assignment efficiently within the contracted period.

In my position as a Japanese Annotator, I audited text datasets for machine learning and NLP applications. My main duties involved verifying prompt consistency, tone accuracy, and factual correctness of AI-generated outputs. I carefully ensured the quality and reliability of Japanese text data used in language models. • Reviewed and audited machine learning text datasets for Japanese NLP. • Checked for tone, consistency, and factual correctness in annotations. • Ensured outputs met required standards for AI development. • Completed the assignment efficiently within the contracted period.

2022 - 2022
Labelbox

Japanese AI Data Labeler

LabelboxTextEvaluation Rating
As a Japanese AI Data Labeler, I labeled and reviewed Japanese language data for natural language training datasets. My role included quality assurance in collaboration with cross-functional QA teams to ensure linguistic accuracy and semantic consistency. The work involved using specialized annotation platforms for AI data projects. • Focused on Japanese text data annotation and labeling. • Conducted semantic and linguistic QA to support AI model training. • Collaborated closely with QA and NLP teams to uphold data integrity. • Regularly provided feedback to improve annotation processes and outcomes.

As a Japanese AI Data Labeler, I labeled and reviewed Japanese language data for natural language training datasets. My role included quality assurance in collaboration with cross-functional QA teams to ensure linguistic accuracy and semantic consistency. The work involved using specialized annotation platforms for AI data projects. • Focused on Japanese text data annotation and labeling. • Conducted semantic and linguistic QA to support AI model training. • Collaborated closely with QA and NLP teams to uphold data integrity. • Regularly provided feedback to improve annotation processes and outcomes.

2022 - 2022

LLM Japanese evaluation

Don T DiscloseTextRelationshipQuestion Answering
this is the LLM evaluation in Japanese for AI training. it evaluates which answer from the AI is better for native Japanese people.

this is the LLM evaluation in Japanese for AI training. it evaluates which answer from the AI is better for native Japanese people.

2022 - 2022

Japanese serch engine evaluation

OtherTextClassificationEvaluation Rating
This is the search engine evaluation in Japanese for AI improvement.

This is the search engine evaluation in Japanese for AI improvement.

2022 - 2022

Education

H

Hill College

Associate of Arts, Liberal Arts

Associate of Arts
2020 - 2021
H

Hill College

Associates in Liberal Arts, Liberal Arts

Associates in Liberal Arts
2019 - 2021

Work History

U

Utsubo.co

Web Director

Osaka
2023 - Present
U

Upwork

Freelance Translator and Content Specialist

Global - Any Location
2021 - Present