Skip to content
View thddydgnl's full-sized avatar

Block or report thddydgnl

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
thddydgnl/README.md

Hi, I'm YongHwi Song 👋

Typing SVG

Email GitHub


👨‍🎓 About Me

  • B.S. Candidate in Information & Communication Engineering, Chungbuk National University
    Mar. 2023 – Present
  • Research Student, Multimedia Information Processing (MIP) Laboratory
    Mar. 2025 – Jun. 2026
  • Advanced Division Leader, HyperCore AI & Data Analytics Club
    Jan. 2026 – Present
  • 🔭 Preparing for graduate study in AI/NLP

🔬 Research Interests

Area Keywords
Language Models Large / Small Language Models
Natural Language Processing Language understanding, generation, and reasoning
AI Agents Agent-based autonomous systems
Reinforcement Learning Policy learning for autonomous systems

🚀 Featured Projects

Status Period Role GitHub

Overview

  • Faculty-supervised research project on robust reinforcement learning-based autonomous driving with multimodal sensor fusion.
  • Implemented a Shapley-guided multimodal fusion pipeline using RGB, LiDAR, route, and ego-state observations.

My Contribution

  • Designed and implemented the multimodal fusion structure.
  • Built the reinforcement learning pipeline and experiment workflow for contribution-guided sensor fusion.

Highlights

  • Built a sensor fusion pipeline for RGB, LiDAR, route, and ego-state inputs.
  • Organized the project into prototype, experiment, and final implementation repositories.
  • Related manuscript submitted to KIISE Transactions on Computing Practices (KTCP), 2026.

Repositories

Period

Jun. 2025 – Jun. 2026

Stack

Python · PyTorch · Stable-Baselines3 · CARLA · Reinforcement Learning


Status Type GitHub

Overview

  • Solar Pro3-based AI agent service for tutor lesson reports, payment reminders, schedule coordination, and parent communication.
  • Built an educational AI service that helps tutors manage lesson records and parent-facing communication through LLM agents.

My Contribution

  • Implemented AI-agent workflows and backend infrastructure.
  • Connected structured agent outputs to the service flow for tutoring operations.

Highlights

  • Designed agents for lesson reports, parent communication, payment reminders, and schedule coordination.
  • Used structured JSON-style outputs to connect LLM reasoning with application features.
  • Developed as part of the Upstage MixUp Agent Hackathon.

Repository

Period

May. 2026

Stack

LLM Agent · Solar Pro3 · Python · TypeScript · Supabase


Status Type GitHub

Overview

  • End-to-end trajectory forecasting project on the Argoverse 2 Motion Forecasting dataset.
  • Implemented a forecasting pipeline that predicts future vehicle and pedestrian trajectories from past motion histories.

My Contribution

  • Built data processing, model training, evaluation, and visualization workflows.
  • Compared multiple forecasting approaches under a consistent experimental setup.

Highlights

  • Compared Linear, LSTM, Transformer, Direct Diffusion, and PCA Latent Diffusion models.
  • Evaluated models with common trajectory forecasting metrics and visual analysis.
  • Focused on reproducible end-to-end implementation rather than leaderboard-only tuning.

Repository

Period

Mar. 2026 – Jun. 2026

Stack

Python · PyTorch · Argoverse 2 · LSTM · Transformer · Diffusion Models


Status Type GitHub

Overview

  • WiFi CSI-based patient monitoring MVP for bed-state classification, fall-risk event detection, and respiration monitoring.
  • Designed a camera-free monitoring system that uses wireless channel changes around a hospital bed to detect patient state and risk events.

My Contribution

  • Built the MVP pipeline for CSI window features, model comparison, and monitoring-oriented classification.
  • Organized the system around practical privacy-preserving patient monitoring scenarios.

Highlights

  • Classified bed-related states such as lying, standing, moving, leaving bed, and fall-like risk events.
  • Used WiFi CSI signals as a privacy-preserving alternative to camera-based monitoring.
  • Explored lightweight deep learning models for practical monitoring scenarios.

Repository

Period

Apr. 2026 – Present

Stack

Python · WiFi CSI · Deep Learning · TinyTransformer · Signal Processing


🛠️ Tech Stack

Programming

Python C++ Java TypeScript

Machine Learning Frameworks

PyTorch TensorFlow scikit-learn Stable-Baselines3

AI / Machine Learning

Reinforcement Learning Deep Learning Multimodal Learning Computer Vision Large Language Models AI Agents Trajectory Prediction

Autonomous Driving / Mobility

CARLA Argoverse 2 Motion Forecasting Sensor Fusion

Development / Tools

Git GitHub Linux FastAPI Android Supabase

Data / Signals

WiFi CSI Signal Processing Pandas NumPy


📝 Publications & Manuscripts

Published

  • Hyeban Namgung, Kuk Seorin, Park Geonwoo, Bae Seohyun, Song Yonghwi, Lee Hyesong, Han Jian, Hyojoong Kim, "A Comparative Study on the Prevalence of Forensic Flies Using Chicken Corpse", Journal of Science Education for the Gifted, 2020.

Manuscripts

  • Under Review: Song, YongHwi, [Co-authors]. "Shapley-style Contribution-Guided Sensor Fusion for Robust Reinforcement Learning-Based Autonomous Driving." Submitted to KIISE Transactions on Computing Practices (KTCP), 2026. First author.
  • In Preparation: Song, YongHwi. "A Comparative Survey of Domestic and International Reinforcement Learning Research for Autonomous Driving." Manuscript in preparation, 2026.

📫 Contact

Pinned Loading

  1. hospital-fall-detection-wifi-csi hospital-fall-detection-wifi-csi Public

    Wi-Fi CSI MVP for hospital bed fall-risk event detection

    Python

  2. rcs-ac-04-final rcs-ac-04-final Public

    멀티센서 RCS-AC actor-critic 최종 구현과 안정화 실험 기록

    Python

  3. solar-tutorboard solar-tutorboard Public

    Forked from yeonseochoi/solar-tutorboard

    TypeScript

  4. vehicle-trajectory-prediction-av2 vehicle-trajectory-prediction-av2 Public

    Argoverse 2-style trajectory forecasting project comparing Linear, LSTM, Transformer, and Diffusion models.

    Python