Research Topics

• Contextual Synchronization
• Semantic pervasive space
• Semantic social networks
• Cooperating personalized information spaces
• Semi-supervised learning
• Online Learning based on Various Machine Learning Schemes
• Semantic technologies, i.e., annotation and indexing
• Model selection
• Semantic Knowledge Discovery and Management
• Collaborative Problem Solving through Information Sharing 
• Data Mining for Efficient Operational Research
• Grid Computing with Artificial Intelligence

Detail Topics

• Interoperability in a network of local lightweight ontologies
• Semantic sessionization for improving the performance of simple rule discovery algorithms
• BlogGrid framework: Efficient information sharing on Blogspace
• Principal Components Analysis for Segmentation of Streaming Data　

Projects

• 지능형 서비스 제공을 위한 센서 웹 환경 플랫폼 구축, 산학협동재단, 2009/06/01 - 2010/05/31, 23백만원
• [K20904000009] Semantic Social Networks을 위한 Ontology Distances (Ontology Distances on Semantic Social Networks), KICOS (STAR: Science and Technology Amicable Relationship), 2009/05/01 - 2011/04/30, 18백만원 link
• [2009-0066751] 대규모 시맨틱 환경에서 온톨로지 매핑 결합을 통한 효과적 정보 검색 (Efficient Information Retrieval by Ontology Mapping Composition in a Large-Scale Semantic Information Space), KOSEF (지역대학우수과학자), 2009/05/01 - 2012/04/30, 135백만원 link
• [KSRCP-2008-02] 다언어 온톨로지 간의 간접 매핑을 통한 정보 시스템간의 상호운용성 연구(A Study on Information System Interoperability Based on Indirect Mapping Between Multilingual Ontologies), KOSEF (Korea-Sweden Research Collaboration Program), 2008/10/01 - 2010/09/30, 30M Won) link
• [2008-0058292, 2009-0058292] Intelligent Ambient Services through Ontology-based Spatial Matching (온톨로지 기반의 공간 매칭을 통한 지능형 엠비언트 서비스 기술), Korean Science and Engineering Foundation (Basic Research Program, May 2008 - February 2010, 80M Won) link

• 커뮤니케이션 방식 진화에 따른 세대간 인간관계의 변화, 정보통신정책연구원 (September 2008 - November 2008, 10M Won) link
• Ontology Mapping for Multiple Ontology Management and Evaluation (온톨로지 구축 및 검증), Institute of Information Technology Assessment, Korea (April 2008 - January 2009, 19M Won) link
• Cultural Heritage Based on Semantic Web (시맨틱 웹 기술 기반의 문화유산 컨텐프 관리 및 활용), Yeungnam University (Young Researcher Program, October 2007 - September 2008, 15M Won) link
• Collective Intelligence on Semantic Web (Semantic Web에서 Collective Intelligence의 구축 및 활용), Korea Research Foundation (International Collaboration Program, September 2007 - August 2008, 20M Won)
• Ontology Mapping for Multiple Ontology Management and Evaluation, Institute of Information Technology Assessment, Korea (September 2007 - January 2008, 6M Won)
• Semantic Social Networks, SaltLux (September 2007 - January 2008, 3M Won)
• Interoperability in a network of local lightweight ontologies, INRIA Rhone-Alpes EXMO, 2005. 9. - 2006. 9.
• Temporal Model Selection Based on Semi-supervised Learning, Korea Research Foundation, 2004. 12. 1 - 2005. 8. 30
• Intelligent Wire and Wireless Internet e-Marketplace Platform on Semantic Web, Korea Science Engineering Foundation, 2003. 3. 1 - 2005. 8. 30
• Extracting User Preferences Based on Semantic Web Mining, Korea Science Engineering Foundation, 2004. 2. 1 - 2004. 7. 30
• Automatic Construction Systems for Hierarchical User Preference Map and User Clustering Based on Web Logs, Inha University, 2003. 3. 1 - 2004. 2. 28
• PDA based Application for applying e-Worldcup systems, Song-Do Techno Park, 2002. 5. 1 - 2002. 10. 30
• Intelligent Automated Negotiation Mobile Agent Systems on the Wire-Wireless Internet Commerce, Korea Science Engineering Foundation, 1999. 3. 1 - 2000. 8. 30