education

University of Southern California
Ajou University

skills

C++, C, Java, Visual C++, MFC, Object-C, Matlab
PHP, HTML, Python, GraphML, XML, XQUERY, RDF, CSS
MySQL, Berkeley DB Flash Action Script, OGRE Engine, GGE Engine
OpenKapow, Dapper, Yahoo Pipes, Mallet, SPARQL, PiggyBank/Solvent ,Prometheus mediator (Datalog)

ACADEMIC PROJECT

V Cache Manager

Design & Implementation Berkeley DB cache manager
Implement Berkeley DB DRAM & Magnetic Disk
Based on Greedy Dual Cache Management Techniques for Mobile Devices

Generating Location-based Information

Generating Ontology from Flickr Tags
Mine a corpus of tagged photos from Flickr
Advanced subsumption based approach & dependency parse tree
Input: location name or address / output: location based information visualization in tree & triples

Discovering and Learning Semantic Models of Online Sources

Mine a corpus of tagged documents from the social bookmarking site del.icio.us
Source discovery: finding similar web-sites with seed source based on the tags, users, documents
Learn latent topics using Latent Dirichlet Allocation & gather related sources using Jensen and Shannon divergence

Feature Selection

From Information theory to Principle Component Analysis

Face and Motion Detection

Matlab Neural Network Toolbox to create neural networks recognizing faces and motions of objects
Design & train a neural network to distinguish 20 different faces regardless of their facial expressions.
Design & train a neural network to recognize each of 5 different motions (Up, Down, Left, Right, and Diagonal)

Any-angle path planning for computer games

Implement Searching algorithm in grids with blocked and unblocked cells: A* and Theta*

Bayesian Networks

Design & implement expert system that performs inferences the probability of winning in Monopoly

work experience

Software Laboratories, SAMSUNG ELECTRONICS

"Matrix" project: context-aware collaborative middleware & frameworks for application to mobile devices.
Develop & test Sensor Framework for the Context Pack
Research RFID tag formats, reader and communication protocols
Design RFID & Near Field Communication system middleware architecture

Information Integration Research Group, Information Sciences Institute
Pedagogical Discourse Project, Information Sciences Institute

related experience

Apple iPhone Applications Develop: Developer
Navy vs. Pirate Game Develop, USC GamePipe Laboratory: Developer
Wireless Network project: Project Manager & Developer
Information Security project: Project Manager & Developer

other work experience

KATUSA (Korean Augmentation to the United States Army)

Radio Operator & Senior KATUSA

Primary Leadership Development Course (WLC)

United States Army NCO Academy at Camp Jackson Wightman
Conduct a tough and demanding Warrior Leader Course
Leadership Ability, Technical and Tactical Proficiency, and War fighting Skills of the NCO Corps

achievements

Recipient "Ajou University Academic Achievement Scholarship" (Spring 2006|Fall 2006|Spring 2007)
Recipient "Ajou University Academic Achievement Scholarship" (Fall 2005|Fall 2007)
Recipient "The Army Commendation Medal" by the secretary of the U.S. Army (May 2005)
Recipient "The Army Achievement" by the secretary of the U.S. Army (Jun 2004)