Curriculum Vitæ
You can find my print version CV in here
(Last Updated: 11 Feb, 2024)
Contact
- Jeong Hoon Choi - Sian
- (He/Him)
- Los Angeles, CA, USA
- +1 (323) 630 6334
- csian7386@gmail.com
- https://csian98.github.io
◎ Education
✘ Master of Science in Applied Data Science
University of Southern California, Los Angeles, CA
▹ Courses: Foundation of Data Management, Machine Learning for Data Science, Foundations and Application of Data Mining, Analysis of Algorithms
✘ Bachelor of Science in Physic & Computer Science
Kyung hee University, Seoul, Republic of Korea
▹ Completion of Big Data & AI Track in the Physics Department
▹ Courses: Computational Physics, Physics with Big Data Analysis, Introduction to Quantum Information, Computer Structure, System Programming
◎ Skills
✘ Programming Languages
▹ C/C++, Python, R, Java, Bash, SQL, Assembly (x86), Emacs Lisp, Makefile, HTML, XML, LaTeX
✘ Frameworks
▹ CUDA, Boost, OpenMPI, Scikit-Learn, Keras, TensorFlow, PyTorch, Hugging Face, Spark, Flask, Django, Selenium, Metasploit
✘ Technologies
▹ Linux, Git, Hadoop, Docker, AWS (EC2, DynamoDB), MongoDB, MySQL, PostgreSQL, Firebase, Tableau, Jupyter Notebooks
✘ Languages
▹ English (Fluent), Korean (Native), Mandarin Chinese (CEFR C1)
◎ Projects
✘ Automatic Trading Program using Transformer |StradIAN
C++, CUDA, Boost, Python, TensorFlow, Keras, Linux (Arch Linux), MariaDB
▹ Developed real-time trading and price collection algorithms for High-Frequency Trading (HFT), along with order routing algorithms for cryptocurrency, stock market, index funds and exchange rates, and implemented a Backtesting environment for strategy validation
▹ Designed long-term price prediction algorithms using Quantitative Analysis (Quant) and Transformer Deep Learning models
▹ Implemented reliable, Responsive Decision-making system for portfolio optimization and manager priority settings
✘ Transfer Learning for Image Classification |TransferLearning
Python, TensorFlow, VGG16, ResNet50, RestNet101, EfficientNetB0
▹ Applied Transfer Learning using pretrained Deep CNN models to build an image classification model.
▹ Achieved an AUC of 0.98, demonstrating high classification accuracy on the new dataset.
▹ Optimized model performance through fine-tuning and advanced preprocessing techniques, ensuring high generalization.
✘ Natural Language Query Parser |ChatDB
Python, NLTK, TCP, SSL/TLS, Selenium, Meta Llama 3.2, Linux (Ubuntu), MariaDB, MongoDB
▹ Developed a Crawler to collect real-time cryptocurrency, stock market, and index fund prices, enabling continuous data updates for analysis
▹ Implemented a framework for User Interface and Relational Algebra Transformation and execution of SQL queries across multiple tables
▹ Fine-tuned the Meta Llama 3.2 LLM model to achieve higher accuracy and used it to improve natural language parsing for precise query results
✘ XPS data multi-label classifier using 1D CNN Deep Learning |XPS Analyzer
C/C++, Python, PyTorch, NIST SESSA, Linux (Fedora)
▹ Created a framework to generate 75k high-dimensional synthetic X-ray photoelectron spectroscopy datasets using NIST’s SESSA software
▹ Built a 4.5M parameter model with 1D CNN layers to predict contamination thickness and the types and distribution of 81 elements
▹ Achieved high predictive accuracy with an R2 score of 0.998 for contamination layer thickness and 0.990 for elemental distribution
◎ Experience
✘ Research Student | Surface & Organic Nano Device Lab
Python, Scikit-Learn, R, Shiny, Bash, Dialog, Linux (Ubuntu)
▹ Automated AES and XPS optical equipment, integrating them into a server-based system for streamlined operation and data management
▹ Developed a framework to replace Origin for automated graph editing and visualization of multi-dimensional data on the server
▹ Proposed and trained senior researchers in applying Machine Learning (ML) and Deep Learning (DL) to Optical Surface Analysis research
✘ Research Assistant with Stipend | Surface & Organic Nano Device Lab
C++, CUDA, Python, MATLAB
▹ Collaborated with the Korea Institute Of Standard and Science (KRISS) to research XPS data analysis methods using Machine Learning (ML) and
Deep Learning (DL) Technologies
▹ Conducted research using PCA, FFT, and Compressed Sensing techniques to enhance the resolution of data lost during measurement processes
▹ Installed a high-performance Docker Server with multiple GPUs for research lab use, optimizing computational resources for intensive tasks
✘ Research Student | Complex System & Information Lab
C, OpenMPI, Fortran, Bash, Linux (Fedora)
▹ Oversaw the expansion and upkeep of the large-scale Multi-Processor (MP) Server supporting 4 computational physics research labs
▹ Developed parallel algorithms for CPU using Numerical methods and Monte Carlo simulations to optimize computational efficiency
Jun 2020
✘ Data Science \& Analytics Internship | Maple Investment Partners
Python, Scikit-Learn
▹ Built a System to Collect and Analyze venture investment data, providing insights into investment trends and opportunities
▹ Researched and analyzed the solar energy upstream industry, offering data-driven investment insights for strategic investments
◎ Other Academic Activities
✘ Completion of Internation Academic Program at University of Southern California
✘ Applied Physics Division Symposium Completion
Busan, South Korea
✘ Wrote 3D missile simulation code
Synchronous simulation using IPC between C++ and Python
✘ Advanced Data Analytics Professional - ADP
Passing only the theory test during the theory and practical exam
✘ Advanced Data Analytics Semi-Professional - ADsP
✘ Completion of a Computer Science Course at a Private Academy
Course Composed of Basic Programming, Computer Structure, Operating System, and System Programming
✘ Passed Certified Account Manager-CAM Exam basic Level
K-IFRS Accounting Principles
✘ Chinese Proficiency Test New HSK Lv.5 247
CEFR C1
✘ Chinese Proficiency Test New HSK Lv.4 249
CEFR B2
◎ Leadership & Achievements
✘ Scholarship of Dean of Undergraduate School
KyungHee University, Seoul, Korea
▹ Awarded for Superior Academic Achievement
✘ Military Service - Republic of Korea Air Force
Gyeonggi-do, Republic of Korea
▹ Served as a Squad Leader, overseeing 30 personnel in the Militry Police