Koh Mitsuda
Koh Mitsuda is an applied scientist who is passionate about natural language processing and dialogue systems, particularly chatbot applications. Since April 2023, he has been affiliated with rinna Co., Ltd. Previously, he worked as a researcher at NTT Labs. In 2021, he obtained his Ph.D. degree in engineering, specializing in dialogue systems, from the University of Tsukuba.
Email: koh.mitsuda@gmail.com
Personal Links: [CV (pdf)] [Google Scholar] [Hugging Face] [Linkedin] [Twitter]
Biography
Apr. 2023 - Current: Applied scientist at rinna Co., Ltd.
Apr. 2015 - Apr. 2023: Researcher at NTT labs., Japan
Apr. 2020 - Mar. 2021: Ph.D. degree in engineering at University of Tsukuba, Japan (Utsuro lab.)
Aug. 2013 - Sep. 2013: Internship at Rakuten Group, Inc., Japan
Apr. 2013 - Mar. 2015: M.S. degree at Tokyo Institute of Technology, Japan (Tokunaga lab.)
Aug. 2010 - Jul. 2012: Programming part-time job at Tokyo Institute of Technology, Japan (Nakadai lab.)
Apr. 2009 - Mar. 2013: B.S. degree at Tokyo Institute of Technology, Japan (Tokunaga lab.)
Publications
R&D Projects
LLM Pre-Training
Conducted continual pre-training of Llama 3 8B for Japanese (rinna/llama-3-youko-8b)
[Paper] (LREC-COLING 2024)
Realtime Multimodal Chat
Developed toolkit for real-time multimodal dialogue systems
[Paper] (IWSDS 2024)
Image-Grounded Chat
Released adapter-based bilingual image conversational model
(LREC-COLING 2024)
Open User Experiment
Trained fully generation-based chatbot and organized experiment in Twitter
[Paper] (ACL 2022)
Dialogue Generation
Realized robot-to-robot debate with generation model for AI tech show
[Paper] (AACL 2022)
Character AI Kurisu
Created hybrid QA chatbot by combining QA and generation model
[Paper] (IWSDS 2021)
Character Android totto
Constructed large-scale QA set and trained response generation
[Paper] (IWSDS 2019)
Volunteer Work
2024 - Current: Action Editor at ACL Rolling Review
2020 - Current: Organizer at Special Interest Group on Natural Language Understanding and Models of Communication
2021 - 2023: Program Committee at Annual Meeting of The Association for Natural Language Processing
2020 - 2022: Organizing Committee at Annual Conference of The Japanese Society for Artificial Intelligence
2017 - 2018: Organizing Committee at Young Researcher Association for NLP Studies
Other Contents
Favorites
Surfing 🏝️
Camp 🏕