He obtained a BS degree in engineering at Seoul National University
in 1971, a MS in systems engineering in 1979, and a PhD in Computer Science in
1983, both at University of California Los Angeles. He was a first lieutenant in Korean Army and research engineer at Korea Institute of Science and Technology (KIST) before
study abroad. He held appointments as an engineering programmer at the Orange county office,
and a senior staff member in computer science at Hughes Research Laboratories, Malibu California, from 1981-1985.
He returned to Seoul in 1985 to join the faculty of KAIST where he headed the Department
1993-1995. From 1995-1999, he was the president of Korea R&D Information Center(KORDIC,
now KISTI) which is responsible to the scientific and technical information services in Korea. On
leaves from KAIST, he was a visiting scientist at IBM Watson Research Center in 1990,
and served as a CEO's advisor at Samsung
SDS. Recently he initiated AppCenter Supporters to promote application development on smart phone and entreneuership.
He served as
president at Korean Information Science Society
and Korea Cognitive Science Society,
key positions in International conferences including Pacific Rim
International Conference in Artificial Intelligence(PRICAI), International Conference on
Pattern Recognition(ICPR), and International Conference on Document Analysis and Recognition(ICDAR).
He is a member of the National Academy of Engineering of Korea, and a fellow of the Korean Academy of Science and Technology,
a fellow of International Association of Pattern Recognition.
He received an order of service merit(ÐÃïÙý³íñ recognition of SW education), Presidential Award (recognition of Hangul Research) and Internet Award (Recognition of AppCenter Movement)
from Korean government. He published more than 200 papers including about 60 international journal papers,
a dozen patents in the area of artificial intelligence and pattern recognition.