Seungju Han

wade3han AT
Last update - 23/09/18

Collaborating Researcher @ AI2 (Mosaic Team), Seattle.
Undergrad @ SNU (Electrical & Computer Engineering). Seoul.
Ex- ML Engineer @ Hyperconnect (acquired by Match Group for $1.7B). Seoul.

Currently, I’m a collaborating researcher at AI2 Mosaic Team, hosted by Jack Hessel, Youngjae Yu and advised by Yejin Choi.

I aim to develop systems that interact with humans, empowering people to perform valuable tasks in the world. A pivotal step, in my view, is to build AI models that understand the world through language, vision, sound, and embodiment, much like humans. Recently, I have been particularly motivated by the following ideas:

  1. creating high-quality dataset through scalable human-AI collaboration (like two works under review),

  2. collecting and curating internet-scale dataset (like CHAMPAGNE), and

  3. computationally efficient learning from large datasets (like one on-going work)

At Hyperconnect (acquired by Match Group for $1.7B), I contributed to solving real-world problems (e.g., with PC Softmax / LADE) using AI, including building social chatbot product (e.g., with DRESS, PDP, CORGE, G2R, and Attentron.) to solve people’s loneliness.

Random facts

I like workouts in the gym and singing music. p.s. I participated in building a product (GYMWORK) to assist people with their workout routines!

Curriculum Vitae


Mar 20, 2023 My first work done in collaboration with AI2 is online! And this paper got accepted to ICCV 2023!
Oct 6, 2022 One paper, which I participated as a first author, is accepted to EMNLP 22 Findings!
Sep 20, 2022 I am really grateful to start research collaboration with AI2 hosted by Youngjae and advised by Yejin!
Jul 1, 2022 I am so excited that I am going to the University of Washington as an exchange student during the autumn quarter of 2022!
Apr 8, 2022 One paper, which I participated as a first author, is accepted to NAACL 2022!

selected publications

  1. ICCV
    CHAMPAGNE: Learning Real-world Conversation from Large-Scale Web Videos
    Han, Seungju, Hessel, Jack, Dziri, Nouha, Choi, Yejin, and Yu, Youngjae
    In International Conference on Computer Vision (ICCV) 2023
  2. EMNLP
    Measuring and Improving Semantic Diversity of Dialogue Generation
    Han, Seungju, Kim, Beomsu, and Chang, Buru
    In Conference on Empirical Methods in Natural Language Processing (Findings) 2022
  3. NAACL
    Meet Your Favorite Character: Open-domain Chatbot Mimicking Fictional Characters with only a Few Utterances
    Han, Seungju*, Kim, Beomsu*, Yoo, Jin Yong*, Seo, Seokjun, Kim, Sangbum, Erdenee, Enkhbayar, and Chang, Buru
    In Conference of the North American Chapter of the Association for Computational Linguistics (Short) 2022
  4. ACL Workshop
    Understanding and Improving the Exemplar-based Generation for Open-domain Conversation
    Han, Seungju*, Kim, Beomsu*, Seo, Seokjun*, Erdenee, Enkhbayar*, and Chang, Buru
    In 4th NLP for Conversational AI (Oral, Outstanding Paper), Annual Meeting of the Association for Computational Linguistics 2022
  5. EMNLP
    Distilling the Knowledge of Large-scale Generative Models into Retrieval Models for Efficient Open-domain Conversation
    Kim, Beomsu*, Seo, Seokjun*,  Han, Seungju*, Enkhbayar, Erdenee*, and Chang, Buru
    In Conference on Empirical Methods in Natural Language Processing (Findings) 2021