hbRESEARCH DESKTOPHYEONBIN HWANG
SEOUL

About

Hello World!

I’m Hyeonbin Hwang

Ph.D. Student @ KAIST

My research focuses on language model reasoning and agentic AI. I develop general post-training methods driven by self-training and reinforcement learning, with the long-term goal of extracting richer learning signals from data.

Outside of research, I enjoy playing jazz piano :D

Feel free to reach out!

  • Reasoning
  • Agentic AI

publications.libraryPublications

12 papers

2026

PUBG Ally: A Conversational Embodied Agent as an AI Teammate

PUBG Ally Team: I Chen, Y Cho, S Chung, J Hong, H Hwang, ..., K YooTech Report
Paper

2026

Intrinsic Task Symmetry Drives Generalization in Algorithmic Tasks

H Hwang, Y ParkICML 2026
Paper Code

2026

Characterizing Pattern Matching and Its Limits on Compositional Task Structures

H Chang, J Park, H Cho, S Yang, M Ko, H Hwang, S Won, D Lee, Y Ahn, M SeoICLR 2026
Paper

2026

The CoT Encyclopedia: Analyzing, Predicting, and Controlling how a Reasoning Model will Think

S Lee, S Kim, M Seo, Y Jo, D Go, H Hwang, J Park, X Yue, S Welleck, G Neubig, M Lee, M SeoICLR 2026
Paper

2025

Latent Reasoning via Sentence Embedding Prediction

H Hwang, B Jeon, S Kim, J Kim, H Chang, S Yang, S Won, D Lee, Y Ahn, M SeoCOLM 2025 RAM 2 Workshop Oral
Paper Code

2025

The BiGGen Bench: A Principled Benchmark for Fine-grained Evaluation of Language Models with Language Models

S Kim, J Suk, ..., H Hwang, ..., M SeoNAACL 2025 Best Paper
Paper Code

2025

Knowledge Entropy Decay during Language Model Pretraining Hinders New Knowledge Acquisition

J Kim, H Lee, H Cho, J Jang, H Hwang, S Won, Y Ahn, D Lee, M SeoICLR 2025 OralAAAI 2025 KnowFM Workshop Best Paper
Paper Code

2024

Self-Explore: Enhancing Mathematical Reasoning in Language Models with Fine-grained Rewards

H Hwang, D Kim, S Kim, S Ye, M SeoFindings of EMNLP 2024ACL 2024 NLRSE Workshop Oral
Paper Code

2024

FLASK: Fine-grained Language Model Evaluation based on Alignment Skill Sets

S Ye, D Kim, S Kim, H Hwang, S Kim, Y Jo, J Thorne, J Kim, M SeoICLR 2024 Spotlight
Paper Code

2024

Investigating the Effectiveness of Task-Agnostic Prefix Prompt for Instruction Following

S Ye, H Hwang, S Yang, H Yun, Y Kim, M SeoAAAI 2024
Paper Code

2022

MED-SE: Medical Entity Definition-based Sentence Embedding

H Hwang, H Yoo, Y ChoiPreprint (During Internship @ NAVER)
Paper

2022

Vision Transformer Equipped with Neural Resizer on Facial Expression Recognition Task

H Hwang, S Kim, W.-J. Park, J Seo, K Ko, H YeoICASSP 2022
Paper Code

experience.logExperience

Internships

  1. Sep 2026 — Present
    LG AI Research

    Research Intern · SuperIntelligence Lab

    Credit assignment in long-horizon RL

  2. May 2025 — Nov 2025
    KRAFTON

    Research Intern · AI Companion Team

    Gameplay agent for PUBG in collaboration with NVIDIA

    Co-Playable Character — PUBG Ally

  3. Mar 2022 — Aug 2022
    NAVER CLOVA

    Research Intern · Healthcare AI

    Medical text summarization & domain-specific embeddings

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