Invited Talks


  1. Harnessing SQL/DBMS Power in Scaled-Out Systems—the Case of a Large-Scale Social Networking Service (SNS) System
    DGIST ICDE Colloquium, Daegu, Mar. 8, 2016
  2. ODYS: A Massively-Parallel Search Engine Using a DB-IR Tightly-Integrated Parallel DBMS
    DGIST Global Innovation Festival, Daegu, Dec. 6, 2012
  3. ODYS: A Massively-Parallel Search Engine Using a DB-IR Tightly-Integrated Parallel DBMS
    IBM Almaden Research Lab, USA, June 14, 2012
  4. The Ubiquitous DBMS
    Yonsei University, Won-Joo Campus, May 24, 2012
  5. DB-IR Integration and Its Application to a Massively-Parallel Search Engine
    the 6th Korea-Japan Database Workshop (KJDB 2011)
    Sapporo, Hokkaido, Japan, Nov. 26, 2011 (keynote speech)
  6. The Ubiquitous DBMS
    Daegu Gyeongbuk Institute of Science and Technology(DGIST), May 13, 2011
  7. DB-IR Integration and Its Application to a Massively-Parallel Search Engine
    The 18th ACM Conference on Information and Knowledge Management (CIKM 2009) (keynote speech),
    Hong Kong, China, Nov. 3, 2009
  8. DB-IR Integration and a Massively-Parallel Search Engine
    University of Minnesota, USA, July 29, 2009
  9. Ubiquitous Database Engines
    The 4th Korea-Japan Database Workshop(KJDB2008)
    Iizaka, Fukushima, Japan, Sept. 20, 2008 (keynote speech)
  10. Ubiquitous Database Engines
    The 2nd Hanoi Forum on Information - Communication Technology (ICT2008) (keynote speech),
    Hanoi, Vietnam, Dec. 11, 2008
  11. A New DBMS Architecture for DB-IR Integration
    Korean Institute of Information Scientists and Engineers (KIISE) Distinguished Visitor Talk
    Dongguk University(Kyeongju), Nov. 28, 2008
  12. A New DBMS Architecture for DB-IR Integration
    Korean Institute of Information Scientists and Engineers (KIISE) Distinguished Visitor Talk
    Woosuk University, Aug. 19, 2008
  13. Ubiquitous Database Engines--A KOSEF National Research Lab Project
    The 4th Korea-Japan Database Workshop (KJDB2008) (keynote speech),
    Iizaka, Onsen, Japan, Sept. 20, 2008
  14. A New DBMS Architecture for DB-IR Integration
    APWeb/WAIM 2007 Conference (keynote speech), Huang Shan, China, June 17, 2007
  15. A New DBMS Architecture for DB-IR Integration
    ACM SAC 2007 Conference (keynote speech), Seoul, Korea, Mar. 12, 2007
  16. Continuous Query Processing in Data Streams Using Duality of Data and Queries
    University of Minnesota, USA, July 21, 2006
  17. Odysseus: a High-Performance ORDBMS Tightly-Coupled with IR and Spatial Features
    IBM Almaden Research Lab, USA, July 22, 2005
  18. Odysseus: a High-Performance ORDBMS Tightly-Coupled with IR and Spatial Features
    University of Minnesota, USA, July 20, 2005
  19. Advanced Information Technology Research Center--Introduction to Database Research
    Tsinghua University, China, July 12, 2004
  20. A One-Pass Aggregation Algorithm with the Optimal Buffer Size in Multidimensional OLAP
    Tsinghua University, China, July 12, 2004
  21. Advanced Information Technology Research Center--Introduction to Database Research
    Beijing University, China, July 12, 2004
  22. A One-Pass Aggregation Algorithm with the Optimal Buffer Size in Multidimensional OLAP
    Beijing University, China, July 12, 2004
  23. Advanced Information Technology Research Center--Introduction to Database Research
    Harbin Institute of Technology, Harbin, China, Feb. 9, 2004
  24. A One-Pass Aggregation Algorithm with the Optimal Buffer Size in Multidimensional OLAP
    Harbin Institute of Technology, Harbin, China, Feb. 9, 2004
  25. GeneralMatch: A Subsequence Matching Method in Time-Series Databases Based on Generalized Windows
    University of Minnesota, USA, July 2003
  26. A One-Pass Aggregation Algorithm with the Optimal Buffer Size in Multidimensional OLAP
    University of Rome, La Sapienza, Nov. 10, 2003
  27. Tight-Coupling: A Way of Building High-Performance Application Specific Engines
    IFIP WG 2.6 meeting, Catania, Italy, Nov. 5-10, 2003
  28. Advanced Information Technology Research Center--Introduction to Database Research, KAIST,
    National University of Singapore, Singapore, May 2003
  29. Advanced Information Technology Research Center--Introduction to Database Research, KAIST,
    SIGMOD Japan, Japan, July 2002
  30. Dual Match: Duality-Based Subsequence Matching in Time Series Databases
    SIGMOD Japan, Japan, July 2002
  31. Advanced Information Technology Research Center--Introduction to Database Research
    Ricoh Co., Japan, July 2002
  32. A One-Pass Aggregation Algorithm with the Optimal Buffer Size in Multidimensional OLAP
    Ricoh Co., Japan, July 2002
  33. Advanced Information Technology Research Center--Introduction to Database Research
    University of Minnesota, USA, July 2002
  34. Dual Match -- an Efficient Time-Series Subsequence Matching Method Using Duality in Constructing Windows
    University of Minnesota, USA, July 2002
  35. GeneralMatch: A Subsequence Matching Method in Time-Series Databases Based on Generalized Windows
    IBM Almaden Research Lab., USA, July 2002
  36. Prefetching Based on the Type-Level Access Pattern in Object-Relational DBMSs
    IBM Almaden Research Lab., USA, July 2001
  37. Physical Database Design for Multidimensional File Organization
    National Database Conference (keynote speech), Bao Ding, China, Oct. 2000
  38. Effient Time-Series Subsequence Matching using Duality in Constructing Windows
    IBM Almaden Research Lab., USA, July 2000
    Hewlett-Packard Research Lab, USA, July 2000
  39. The Clustering Property of Corner Transform for Spartial Databases
    University of Minnesota, Aug. 1999
  40. Technology Development Planning for Fundamental and Applied S/W Technologies for Ministry of Science and Technology
    Jeon-Nam National University, June 1999
  41. A Region Splitting Strategy for Physical Database Design of Multidimensional File Organization
    Hewlett-Packard Research Lab, USA, July 1998
  42. ODYSSEUS: an Object-Oriented Multimedia DBMS
    IBM Almaden Research Lab., USA, July 1998
  43. ODYSSEUS: an Object-Oriented Multimedia DBMS
    Daewoo Heavy Industries LTD., Apr. 1998
  44. The Development of the ODYSSEUS Object-Oriented DBMS
    Tutorial Presentation at the 1998 SIGDB Winter Conference, Feb. 1998
  45. A Region Splitting Strategy for Physical Database Design of Multidimensional File Organizations
    IBM Almaden Research Lab., USA, July 1997
  46. ODYSSEUS: Object-Oriented Multimedia DBMS
    Seoul International Database Conference, July 1997
  47. '97 Introduction to Database and Multimedia Laboratory
    SERI, June 1997
  48. Physical Database Design of Multidimensional File Organizations
    IFIP WG 2.6, June 1997
  49. Multimedia DBMS
    POSTECH, Korea, Oct. 1996
  50. Spatial Join Using Corner Transformation
    University of Minnesota, USA, Feb. 1996
    IFIP WG 2.6 meeting, Barcelona, Spain, Oct. 1995
    IBM Almaden Research Lab., USA, July 1995
  51. The Architecture of the Object-Oriented DBMS
    Korea Science and Engineering Foundation, Sept. 1995
  52. GEOSS: An Object-Oriented Spatial Object Storage System for GIS
    GIS Tutorial, KOEX, June 1995
  53. Object-Oriented GIS Engine for Large Spatial Database
    The '95 Workshop for GIS Software Development, Feb. 1995
  54. Multimedia Database System Technology
    Tutorial Presentation at the 1995 SIGDB Winter Conference, Feb. 1995
  55. Multimedia Database and Platform
    Multimedia '94 Seminar, KOEX, Dec. 1994
  56. Development of Multimedia Information Storing and Retrieving Technology
    The Workshop for Fundamental Research on Information Super-highway, KAIST Seoul Campus, Oct. 1994
  57. Current Status and Future Prospect of Multimedia Databases
    The Second Workshop for Promoting Database Industry in Korea, Database Promotion Center of Korea, June 1994
  58. The Multilevel Grid File and Its Applications
    IFIP WG 2.6, meeting, Beanne, France, June 1994
  59. Mutimedia Databases
    System Engineering Research Institute, May 1994
    Ajou University, Nov. 1994
  60. A Multimedia Information System Platform
    Macquarie Univ., Sydney, Australia, Apr. 1994
    Hewlett Packard Laboratory, Palo Alto, California, Aug. 1993
    IBM Almaden Research Center, Aug. 1993
    System Engineering Research Institute, Nov. 1992
  61. Providing Persistence to C++ for Multimedia Applications
    Hewlett Packard Laboratory, Palo Alto, California, Aug. 1993
    IBM Almaden Research Center, Aug. 1993
  62. Dynamic Maintenance of Data Distribution for Selectivity Estimation
    Georgia Institute of Techology, Feb. 1994
    University of Minnesota, Dec. 1992
    IBM T.J. Watson Research Center, July 1992
    Georgia Institute of Techology, Feb. 1992
    IBM Almaden Research Center, Aug. 1991
    Stanford University, Aug. 1991
    Hewlett Packard Laboratory, Aug. 1991
  63. A Version Management System for CAD Databases
    GoldStar Electron Co., Nov. 1992
  64. Research Projects at the KAIST Database and Multimedia Laboratory
    Hyundai Electronics Co., Nov. 1992
  65. Multimedia Information Systems
    Tutorial Presentation at the 1992 Fall Plenary Meeting of the Special Interest Group on Expert Systems,The Korean Operations Research and Management Science Society, Sept. 1992
  66. Multimedia Information Processing
    Tutorial Presentation for the Short Course Organized by Special Interest Group on Data and Computer Communication,Korea Institute of Communication Sciences, Sept. 1992
  67. Query Optimization in OBE/QBE -- A Memory Resident Domain Relational Calculus Database System
    Seogang University, 1990
    Louisiana State University, Oct. 1988
    Rutgers University, Nov. 1987
  68. Issues in Object-Oriented Database Systems Research
    Seogang University, 1990
    Pohang Institute of Science and Technology, 1990
    Seoul National University, 1990
    Kyusu University, Nov. 1990
    University of Minnesota, Oct. 1990
    Stanford University, Feb. 1990
  69. Supporting Universal Quantification in a Two-Dimensional Database Query Language
    Stanford University, Feb. 1989
    University Texas at Austin, Dec. 1988
    M.C.C., Dec. 1988
  70. An Extended Disjunctive Normal Form Approach to Optimizing Recursive Logic Queries in Loosely Coupled Environments
    University of Minnesota, May 1987
    Stanford University, April 1987
    New York University, March 1987
  71. Query Optimization in Main Memory Resident Databases
    Bell Communications Research, June 1987
  72. Query Optimization in Office-by-Example
    Carleton University, Canada, March 1986
    Cornell University, Sept. 1985
    IBM Japan Science Institute, May 1985
    Stanford University, May 1985

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