Ki-Ung Song
Problem Solver with AI and Mathematics Who Wants to Change the World
Seoul, South Korea
Featured Updates
January 28, 2026
Preliminaries for Computational SimulationPost
August 11, 2024
Neural Solver Towards Future of Simulation: Deep DivePost
Since May 2023
LLM4FinanceProject
Tags
See All >>Experience
Click for complete list.
Work Experience
Nota AI
AI Research Engineer
Jul 2024 - CurrentAdvancing AI for real-world, on-device applications.
- Developing VLM applications for edge devices to address practical challenges.
- Working on model compression techniques to enhance AI efficiency and deployment.
Deargen Inc.
AI Scientist
Sep 2022 - Jun 2024Developed AI models for drug discovery to advance healthcare.
- Designed a representation learning framework for molecules of various scales, embedding small molecules to proteins in a unified space.
- Built a controllable molecular generation model using diffusion models, conditioned on protein properties.
- Identified and addressed modality imbalance in molecular interaction prediction via a multimodal-mixing approach.
Project Experience
Personal Projects
Deepest: SNU Deep Learning Society
NCIA Lab
Growth Hackers: Business Data Analysts
Greenhouse Gas and Energy Management Center
Student Worker
Jan 2020 - Aug 2020- Managed and visualized SNU’s greenhouse gas and energy data using R.
- Improved data workflow and established visual baselines to track energy trends and detect anomalies.
- Gained hands-on experience with real-world data management.
Research Experience
Current Work
Research Topics in Interest
-
Efficient LLM & VLM
- To make LLMs and VLMs more efficient via compression and pruning.
-
DL for Simulation
- To accelerate the process of simluation-based science and engineering via DL.
Past Work
Researched Topics
-
DL for Drug DiscoverySep 2022 - Jun 2024
- Representation learning to handle various scale of molecules universally.
- Ligand generation using diffusion models for protein target pockets.
- Multimodal model for predicting protein-ligand binding affinity.
During M.S.
Sep 2020 - Aug 2022Researched Topics
-
Neural Tangent Kernels (NTKs) and DL theories
- NTK arises in the infinite-width limit of neural networks, simplifying DL models to a linearized form under certain conditions.
- The trend toward larger NNs has driven research on initialization and training in wide networks, leading to the infinite-width assumption for analyzing their dynamics.
- Modern overparameterized DL models can be analyzed via NTK in the infinite-width limit as feature dimensions increase.
-
Generative Models (Diffusion and Schrödinger Bridge models)
- Diffusion models have demonstrated state-of-the-art performance across various domains.
- Schrödinger Bridge (SB) models, based on entropy-regularized optimal transport, generalize diffusion models.
During B.S.
Mar 2016 - Aug 2020Undergraduate Research Internship
-
Topic : Theoretical Background on the Convergence of Optimizers
Used in Deep Learning
Mar 2020 - Aug 2020 -
Topic : Exploring the Mathematical Background Related to Machine
Learning(Reinforcement Learning)
Jun 2019 - Aug 2019
Academic Experience
During M.S.
Sep 2020 - Aug 2022Key Courses
-
Machine Learning for Visual Understanding
- Team Project: Image Deblurring with Generative Diffusion Process
-
Practical Application Research of IoT·AI·Big Data
- Personal Project: Various GANs and its Application(Face Aging)
- Mathematical Algorithm
- Numerical Analysis
During B.S.
Mar 2016 - Aug 2020Key Courses
-
Mathematical Modeling and Computational Experiments
- Team Project: Text Detection based on YOLO v3
- Combinatorial Optimization
- Linear and Non-linear Optimization
- Operation Research
Continual Learning
A journey of continuous growth.Textbooks
- [Sumio Watanabe] Algebraic Geometry and Statistical Learning Theory
- [Cuturi] Computational Optimal Transport
- [Kevin Murphy] Probabilistic Machine Learning
- [de Berg] Computational Geometry
- [S. Boyd] Convex optimization
Open Courses
- CS224W: Machine Learning with Graphs by Stanford University
- CS329S: Machine Learning Systems Design by Stanford University
- CS231n: Convolutional Neural Networks for Visual Recognition by Stanford University
Teaching Experience
Teaching Assistant (TA)
-
Elementary Mathematical Analysis
Spring 2022 -
Linear Algebra
Spring 2022 / Fall 2021 -
Calculus
Fall 2021 / Spring 2021 / Fall 2020
Featured Updates
January 28, 2026
Preliminaries for Computational SimulationPost
August 11, 2024
Neural Solver Towards Future of Simulation: Deep DivePost
Since May 2023
LLM4FinanceProject