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Dong Won Kim

Deep Learning Research Engineer

Education

B.S. in Electrical Engineering, Minor in Physics

March 2017 - February 2024
Korea Advanced Institute of Science and Technology (KAIST)
  • Overall GPA 4.14 / 4.30, Summa Cum Laude
  • Ranked 9th out of 434 students, 3rd within EE department of 116

Experiences

Deep Learning Research Engineer

March 2024 - Present
Krafton AI, Seoul, South Korea
  • Optimized speech generative models for client-side deployment
  • Leveraging large-scale data analysis and teacher models to maximize the quality while compressing its size

Research Intern

June 2023 - August 2023
Krafton AI, Seoul, South Korea
  • Researched and developed evaluation metrics and pipelines for voice generation models Paper
  • Implemented an evaluation pipeline of voice generation models based on previous research
  • The metrics have been actively used subsequently and contributions are referenced in the acknowledgments section of the published paper

Research Engineer

July 2020 – February 2023
Return Zero Inc., Seoul, South Korea
  • Led the development and deployment of an advanced E2E ASR system, achieving significant benchmarks in performance and scalability Model Specs
  • Engineered a speech recognition engine to meet high performance standards in low-resource settings, integrating over 100M parameters and 20k hours of speech data
  • Enhanced model robustness and effectiveness using unsupervised training techniques, achieving over 500 RTFx on AWS EC2 g4dnxlarge instances and reducing latency to 200ms
  • Designed adaptable system architecture using SoTA techniques (e.g., ALiBi), and developed customized layers with CUDA and pybind11 for domain-specific B2B applications
  • Applied the system in practical B2B scenarios and the VITO application, demonstrating its industry relevance Demo
  • Developed a neural network language model for Hybrid ASR systems, employing neural network acceleration and knowledge distillation to enhance low-latency streaming ASR Related Article

Honors and Awards

KAIST Summa Cum Laude

2024/02
KAIST

Krafton AI Fellowship

2023/02

Evaluated based on AI knowledge, Awarded 10 million KRW, More Info

Krafton Inc.

KFAS Undergraduate Fellowship

2019/02
Korea Foundation For Advanced Studies

KAIST Presidential Fellowship

2017/02

Awarded to Science High School Valedictorian students, More Info

KAIST

KAIST Dean's List

2017/09 - 2020/09

Top 3% GPA for 4 out of 8 semesters

KAIST

OSS Contributions

SpeechBrain - Contributor and maintainer of E2E ASR recipe

Skills & Proficiency

Programming Languages

Python, C++, C, Shell Script, MySQL

Libraries & Toolkits

Pytorch, Fairseq, Kaldi, Triton Inference Server, Onnx, TensorRT, CMake

Software

Linux, Git, Docker, Docker Compose

Languages

English - TOEFL 104/120, TOEIC 990/990, TEPS 525/600 (Top 3.7%)

Others

Blog Articles

Article on the evolution from Hybrid to E2E ASR

More info