About me
I’m PhD student at Pohang University of Science & Technology (POSTECH).
ryusangwon@postech.ac.kr
Research Interest
- Natural Language Processing
- Reinforcement Learning
- Planning & Decoding Strategy
- Text Summarization
- Large Language Model
- Data Mining
Education
- POSTECH
- Ph.D. student in Graduate School of Artifical Intelligence
Advised by Prof. Jungseul Ok and Gary Geunbae Lee
- Ph.D. student in Graduate School of Artifical Intelligence
- Ajou University
- B.S. in Software and Computer Engineering
- Micro Major in Artifical Intelligence
Research Experiences
- Research Assistant, POSTECH, NLP Group, February 2023 - August 2026 (expected)
Advised by Prof. Yunsu Kim and Prof. Gary Geunbae Lee - Research Intern, Ajou University, Lamda Lab, February 2022 - December 2022
Advised by Prof. Kyung-Ah Sohn - Research Intern, Ajou University, HMS Lab, February 2021 - December 2021
Advised by Prof. Sangeun Oh
Publications
*: Equal contributions
conferences
- Towards Prompt Generalization: Grammar-aware Cross-Prompt Automated Essay Scoring
Heejin Do, Taehee Park, Sangwon Ryu, Gary Geunbae Lee
NAACL Findings 2025, April 2025 - Revisiting Early Detection of Sexual Predators via Turn-level Optimization
Jinmyeong An, Sangwon Ryu, Heejin Do, Yunsu Kim, Jungseul Ok, Gary Geunbae Lee
NAACL 2025, April 2025 (Oral presentation) - Autoregressive Multi-trait Essay Scoring via Reinforcement Learning with Scoring-aware Multiple Rewards
Heejin Do, Sangwon Ryu, Gary Geunbae Lee
EMNLP 2024, November 2024 - Key-Element-Informed sLLM Tuning for Document Summarization
Sangwon Ryu*, Heejin Do*, Yunsu Kim, Gary Geunbae Lee, Jungseul Ok
INTERSPEECH 2024, September 2024 (Oral presentation) - Multi-Dimensional Optimization for Text Summarization via Reinforcement Learning
Sangwon Ryu*, Heejin Do*, Yunsu Kim, Gary Geunbae Lee, Jungseul Ok
ACL 2024, August 2024
preprints
- Teach-to-Reason with Scoring: Rationale-Driven Automated Multi-Trait Essay Scoring
Heejin Do, Sangwon Ryu, Gary Geunbae Lee - Multi-facet Blending for Faceted Query-by-Example Retrieval
Heejin Do*, Sangwon Ryu*, Jonghwi Kim, Gary Geunbae Lee - Exploring Iterative Controllable Summarization for Large Language Models
Sangwon Ryu, Heejin Do, DaeHee Kim, Hwanjo Yu, Dongwoo Kim, Yunsu Kim, Gary Geunbae Lee, Jungseul Ok - Ontology-Free General-Domain Knowledge Graph-to-Text Generation Dataset Synthesis using Large Language Model
DaeHee Kim, Deokhyung Kang, Sangwon Ryu, Gary Geunbae Lee
domestic conferences
- Comparative Analysis of Language Model Performance in News Domain Summarization
Sangwon Ryu, Yunsu Kim, Gary Geunbae Lee
HCLT 2023, October 2023 (Oral presentation) - Query Control for Fluent Query Focused Summarization
Sangwon Ryu, Kyung-Ah Sohn
KCSE 2023, February 2023 (Best paper award, Oral presentation) - NLI Style Few-shot Learning with Supervised Contrastive Loss
Sangwon Ryu, Kyung-Ah Sohn
KICS 2022, June 2022
Teaching Experiences
- Teaching Assistant, POSTECH
- Introduction to Artificial Intelligence (CSED105), Spring 2025
- Mentor, POSTECH, Undergraduate Research Participation
- Text Summarization, February 2024 - June 2024
- Lecturer, POSCO AI Application Expert Training
- Data Mining, April 2024 - August 2024
- Data Mining, April 2023 - August 2023
- Teaching Assistant, Megastudy
- Mathematics, May 2019 - December 2019
Responsibilities
- Reviewer
- Conference: ARR (2025)
- Journal: TASLP (2024, 2025)
- Workshop: ACL (SRW 2024)
Research Projects
- Development of Machine Translation
HYBE & Seoul National University, Principal Investigator, Dec 2024 - current- Machine translation, post-editing
- MILAINA: Multi-Lingual AI News Agent
National Research Foundation of Korea (NRF), Principal Investigator, June 2023 - current- Multi-lingual text summarization
- Development and Verification of Online Hate Speech Identification Model
National Research Foundation of Korea (NRF), July 2022 - December 2022- Hate speech data construction
Talks
- Cohere For AI, Optimizing Text Summarization in Multiple Dimensions
- Presented by Prof. Yunsu Kim
Awards and Certificates
- Best Paper Award, KCSE (2023)
- SOFTCON Research Excellence Award, Ajou University (2022)
- Big Data Analysis Practice Level 2
- Recognition Award, Gyeonggi Nambu Provincial Police Agency (2017)
- Excellence Recruit, Korea Army (2016)
Patents and Copyrights
- Instruction Tuned sLLM for News Summarization
Copyright, Registration Number: C-2024-000076 - sLLM Tuning method for News Summarization, device for the same, and method for generating news summarization
Patent, Registration Number: 10-2023-0191656 - Query focus summarization Program
Copyright, Registration Number: C-2022-052465
Skills
- Python, Pytorch, (Vim, Nodejs, django, SQL, Android)
Other Experiences
- Forklift Driver, September 2018 - December 2018
- Bus Driver, Auxiliary Police, October 2016 - July 2018
- GJJ, White Belt (III)
- Interests in {Body Building, MMA, Grappling}