MDI: The Minimum Detectable Improvement of an LLM Judge
Accepted to the NeurIPS 2026 Workshop on Trust-AI-Eval (TAE), non-archival.
Hyeong-seob Kim
(Harrison Kim)
I am an AI Research Engineer at Braincrew, a deep-tech AI company in South Korea led by Korea's LangChain Global Ambassador. At Braincrew I build agentic AI systems for large enterprises.
I am also the founder and CEO of WIGTN, an AI company in Korea. WIGTN publishes research in NLP and speech AI and delivers enterprise AI transformation (AX) projects.
Before AI, I trained as an architectural engineer and spent a decade in the construction industry. That is where my interest in modernizing legacy systems began.
Current positions
- Founder & CEO at WIGTN
- AI Research Engineer at Braincrew
- AI Researcher at RAPIDS LAB, MODULABS
Research interests: AI problems enterprise clients struggle with in production, including real-time speech translation, document parsing for retrieval, LLM-judge evaluation, and GPU-accelerated machine learning.
publications
Retrieval-Conditional Parsing Score (RCPS): Choosing Document Parsers by Retrieval, Not by Appearance
Accepted to EMNLP 2026 Industry Track.
* Corresponding author
WIGVO: Real-Time Bidirectional Speech Translation over Legacy PSTN Calls via Dual-Session Echo Gating
In Proceedings of ACL 2026 System Demonstrations.
talks
WIGVO: Real-Time Bidirectional Speech Translation over Legacy PSTN Calls (Invited)
Oral Session II, IWSLT 2026 (co-located with ACL 2026), San Diego, CA, USA. July 3, 2026.
work experience
details →|
Apr 2026 - Present
Full-time
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Braincrew
AI Research Engineer, Research Engineering Team
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Jan 2026 - Present
Research affiliate
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RAPIDS LAB (MODULABS)
AI Researcher, GPU-Accelerated Laboratory
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Jan 2026 - Present
Self-employed
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WIGTN
Founder & CEO
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| Jul 2025 - Mar 2026 |
Soundmind
AI Research Engineer, AX Division
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| Jan 2022 - Sep 2024 |
Hyundai Engineering & Construction
Architectural Site Engineer, Housing Division
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| Jul 2016 - Jan 2022 |
Dongkuk Construction
Construction Project Manager, Head Office
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| Aug 2014 - Jul 2016 |
Doosan Engineering & Construction
Architectural Site Engineer, Architecture Division
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education
| Jun 2023 - Feb 2024 |
National Institute for Lifelong Education
Bachelor's degree in Architectural Engineering
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| Mar 2009 - Aug 2015 |
Kyungbok University
Associate degree in Architectural Design
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