Publications

Advanced Code Time Complexity Prediction Approach Using Contrastive Learning
Shinwoo Park, Joonghyuk Hahn, Elizabeth Orwig, Sang-Ki Ko, Yo-Sub Han
Engineering Applications of Artificial Intelligence (EAAI) 2025
[Link]
Characterizations of M-equivalence and Weak M-relation
Joonghyuk Hahn*, Hyunjoon Cheon*, Yo-Sub Han
International Journal of Foundations of Computer Science (IJFCS) 2025
[Link]
On the Decidability of Infix Inclusion Problem
Hyunjoon Cheon*, Joonghyuk Hahn*, Yo-Sub Han
Theory of Computing Systems (ToCS) 2024
[Link]
CodeComplex: Dataset for Worst-Case Time Complexity Prediction
Seung-Yeop Baik, Joonghyuk Hahn, Jungin Kim, Mingi Jeon, Aditi, Yo-Sub Han, Sang-Ki Ko
Under review
[Link]
TCProF: Time-Complexity Prediction SSL Framework
Joonghyuk Hahn, Hyeseon Ahn, Jungin Kim, Soohan Lim, Yo-Sub Han
NAACL 2025
[Link]
Universal Rewriting Rules for the Parikh Matrix Injectivity Problem
Ingyu Baek*, Joonghyuk Hahn*, Yo-Sub Han, Kai Salomaa
DLT 2024, LNCS 14791
[Link]
SuperST: Superficial Self-Training for Few-Shot Text Classification
Ju-Hyoung Lee*, Joonghyuk Hahn*, Hyeon-Tae Seo, Jiho Park, Yo-Sub Han
LREC-COLING 2024
[Link]
ATHENA: Mathematical Reasoning with Thought Expansion
J.B. Kim, Hazel Kim, Joonghyuk Hahn, Yo-Sub Han
EMNLP 2023
[Link]
GDA: Grammar-based Data Augmentation for Text Classification using Slot Information
Joonghyuk Hahn*, Hyunjoon Cheon*, Elizabeth Grace Orwig, Su-Hyeon Kim, Sang-Ki Ko, Yo-Sub Han
Findings of EMNLP 2023
[Link]
M-equivalence of Parikh Matrix over a Ternary Alphabet
Joonghyuk Hahn*, Hyunjoon Cheon*, Yo-Sub Han
CIAA 2023, LNCS 14151
[Link]
Boosting Code Summarization by Embedding Code Structures
Jikyoeng Son*, Joonghyuk Hahn*, Hyeon-Tae Seo, Yo-Sub Han
COLING 2022
[Link]
On the Decidability of Infix Inclusion Problem
Hyunjoon Cheon*, Joonghyuk Hahn*, Yo-Sub Han
DLT 2022, LNCS 13257
[Link]
Self-Training using Rules of Grammar for Few-Shot NLU
Joonghyuk Hahn*, Hyunjoon Cheon*, Kyuyeol Han, Cheongjae Lee, Junseok Kim, Yo-Sub Han
Findings of EMNLP 2021
[Link]
Most Pseudo-copy Languages Are Not Context-free
Hyunjoon Cheon*, Joonghyuk Hahn*, Yo-Sub Han, Sang-Ki Ko
COCOON 2021
[Link]

* indicates co-first authorship.