Men argue, Nature acts. - Voltaire -       By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest. - Confucius -       The truth of a thing is the feel of it, not the think of it. - Stanley Kubrick -       The secret of health for both mind and body is not to mourn for the past, nor to worry abo ut the future, but to live the present moment wisely and earnestly. - Buddha -      
  • “Quantifying Quality: Bibliometric Approach to Research Evaluation” Invited lecture at the Khon Kaen University Faculty of Humanities and Social Science, October 20, 2018, Khon Kaen, Thailand.
  • “Comparative analysis of Publication Patterns in KCI and SSCI journal papers.” Invited presentation at the 1st International Conference on Library and Information Science, August 18, 2018, Nonthaburi, Thailand.
  • “LibrarianXG: 4th Industrial Revolution and the Role of Public Librarian.” Invited presentation at the Seoul Metropolitan Office of Education’s Annual Public Library Workshop, May 17, 2018, Hoengseong, Korea.
  • “4th Industrial Revolution and the Library.” Invited presentation at the Public Library Council’s Public Library Cooperation Workshop, March 23, 2018, Gyeongju, Korea.
  • “4th Industrial Revolution and the future of Library.” Invited presentation at the 21st Daejeon-Chung Public Library Staff Seminar, December 27, 2017, Daejeon, Korea.
  • “Hybrid Approach to Author Name Disambiguation - Combining the Best of Man and Machine.” Invited presentation at the Joint Conference of the Korean Society for Library and Information Science Association, November 17, 2017, Seoul, Korea.
  • “ACOMS: From Peer-Review System to Scholarly Publishing Platform.” Invited presentation at the ACOMS User Evaluation Seminar, June 26, 2017, Daegu, Korea.
  • “Future of the Library: The Beginning, Evolution & LibraryXG” Invited presentation at the 2017 Korean Society for Library and Information Science Association Member Training Seminar, February 17, 2017, Daegu, Korea.
  • "Digital Library: Bird’s eye View." Invited presentation at the Korean National Digital Library Workshop, December 11, 2015, Seoul, Korea.
  • "Library XG: To Survive or To Thrive." Invited presentation at the 4th International Conference of Asian Special Libraries, April 22, 2015, Seoul, Korea.
  • "Bibliometric Approach to Research Assessment: Publication Count, Citation Counts, & Author Rank." Invited presentation at International Conference of Distinguished Foreign Scholars, October 14, 2014, Daegu, Korea.
  • "The Future of Education in Korea." Invited presentation at Daegu Metropolitan Office of Education, March 14, 2014, Daegu, Korea.
  • "Outlook of i-Schools Initiative in Korea." Invited presentation at Keimyung University, February 18, 2014, Daegu, Korea.
  • "Education XG." Special lecture at Suseoung-Gu Beomeo Library’s Global Youth Academy Program, November 30, 2013, Daegu, Korea.
  • "The Future of Education." Invited presentation at Daegu Metropolitan Office of Education, November 25, 2013, Daegu, Korea.
  • "Trends of Journal Publishing Platform." Invited presentation at International Seminar on Scholarly Publishing 2013, November 21, 2013, Seoul, Korea.
  • "Bibliometric Approach to Research Assessment: Publication Count, Citation Counts, & Author Rank." Presentation at Kyungpook National University, June 10, 2013, Daegu, Korea.
  • "The Library’s Future.” Special lecture at the National Library of Korea, April 22, 2013, Seoul, Korea.
  • "i-Schools in Korea." Invited presentation at Kyungbook National University, October 26, 2012, Daegu, Korea.
  • "Comparison and Analysis of Data Coverage for Citation Index." Presentation at the Eighth International Conference on Webometrics, Informetrics and Scientometrics (WIS) & Thirteenth COLLNET Meeting, October 25, 2012, Seoul, Korea.
  • "The Future of Libraries: Library Search Optimization." Invited lecture at Documentation Research and Training Centre of India Statistical Institute, July 2, 2012, Bangalore, India.
  • "The Future of the Library." Special lecture at Nanyang Technical University, June 29, 2012, Singapore.
  • "Library XG." Invited presentation at the Special Library Future Strategy Seminar (sponsored by Korea Special Library Association), June 21, 2012, Moonkyung, Korea.
  • "Next-generation Libray Search & Discovery: What's up with users these days? Can we do more with metadata? What should LSD do? How?" Invited presentation at the 5th Digital Library Conference (sponsored by Nurimedia), May 24, 2012, Seoul, Korea.
  • "Zen and Art of Pedagrogy: Trials & Tribulations of International Faculty". Invited presentation at KMU Teaching & Learning Center Luncheon Teaching Conference, April 25, 2012, Daegu, Korea.
  • "CiteSearch: Bibliometric Approach to Multi-faceted Research Assessment." Invited presentation at the Korea Institute of Science and Technology Information, March 14, 2012, Taejon, Korea.
  • "CiteSearch: next-generation citation analysis", Invited presentation at the Trends in Research Measurement Metrics special event by Special Libraries Association & Elsevier, October 26, 2010, Library of Congress, Washington DC.
  • "WIDIT in TREC2008 Blog track: Leveraging multiple sources of opinion evidence¿. Invited presentation at the 16th Text Retrieval Conference, November 20, 2008, Gaithersburg, MD.
  • "Impact of Google Scholar on Citation Analysis". Invited presentation at the Citation Tracking and Analysis session of Special Libraries Association's Annual Conference, June 16, 2008, Seattle, WA.
  • "WIDIT in TREC2007 Blog track: Combining lexicon-based methods to detect opinionated blogs". Invited presentation at the 16th Text Retrieval Conference, November 8, 2007, Gaithersburg, MD.
  • "Fusion approach to opinionated blog detection". Invited talk at the Center for Data and Search Informatics Seminar Series, School of Informatics, Indiana University Bloomington, October 10, 2007.
  • "Fusion approach to finding opinions in blogosphere". Paper presented at the 1st International Conference on Weblogs and Social Media, March 27, 2007, Boulder, CO.
  • "WIDIT in TREC2006 Blog track: Searching for opinionated posts about entities". Invited presentation at the 15th Text Retrieval Conference, November 16, 2006, Gaithersburg, MD.
  • "Citation Analysis: A comparison of Google Scholar, Scopus, and Web of Science". Paper presented at the 69th Annual Meeting of the American Society for Information Science and Technology, November 8, 2006, Austin, Texas.
  • "WIDIT: Integrated approach to HARD topic search". Paper presentation at the 2nd Asian Information Retrieval Symposium, October 16, 2006, Singapore.
  • "CiteSearch: Comparative citation analysis of Google Scholar, Scopus, and Web of Science". Co-presentation with L. Meho at SLIS Brownbag, School of Library and Information Science, Indiana University Bloomington, September 29, 2006.
  • "Multi-faceted approach to citation-based quality assessment for knowledge management". Paper presented at the 72nd IFLA Conference, August 23, 2006, Seoul, Korea.
  • "Locating online government information: A Comparison of FirstGov, Google, and Yahoo". Poster presented at the 7th Annual International Conference on Digital Government Research, May 23, 2006, San Diego, CA.
  • "WIDIT at TREC-2005 HARD track". Invited talk at the Honors Seminar, School of Informatics, Indiana University Bloomington, March 20, 2006.
  • "WIDIT at TREC-2005 HARD track". Invited talk at the Research & Teaching Talk series, College of Information Science and Technology, Drexel University, February 17, 2006.