Keynote Speeches

2008 -		Director, Information Synergy Organization, Tohoku University
2007 -		Deputy Director, Research Institute of Electrical Communication, Tohoku University
1999 -		Professor, Research Institute of Electrical Communication and Graduate School of Information Sciences, Tohoku University
2009 -		Member, Telecommunication Council, Ministry of Internal Affairs and Communications
2007 -		Chairperson, Publication Committee. Acoustical Society of Japan
2006 -		Member, Council Board, Virtual Reality Society of Japan
2005 - 2007		President, the Acoustical Society of Japan

Along with the rapid spread of the internet, personal computers and mobile phones, communications via the Internet are now widely and commonly used for daily life. For speech communications, VoIP (voice over IP) is now very widely used over worldwide. Moreover, for audio world, it is now common to download music via the Internet. This naturally results in strong and increasing demand to realize secureness and high-quality with the internet communications. In this keynote, our recent research results relating to data hiding, in a broad sense, to realize secure and high-quality speech and audio communications are introduced.

Digital watermarking to protect copyrights is the most promising application of data hiding. Here, audio watermarking methods based on time-spread echo hiding and phase-rotation are introduced. These methods provide good inaudibility and high detection rate.

In IP-based audio transmission, packet loss is inevitable. For on-demand audio transmission, retransmission and stream buffering are effective but not for multicast-based application. Therefore, a new packet loss concealment method on the multiple description, where one audio stream is split into two independent audio streams based on spectrum stripe coding for MP3 coded audio signal.

In voice communications over the Internet, prevention of interception is becoming a crucial concern. Secret sharing seems effective to solve this problem. By sharing the original data into shared data sets to transmit through different paths, it becomes impossible actually for a malicious person to decipher the conversation unless they can access all the relevant data synchronously by wiretapping of all the paths. Our attempts for standardized codings such as CELP and ADPCM are introduced.

Data hiding is useful to to add new and extended features to the host signal by using the data hidden behind the host. A new low-bit substitution method for G.711 speech code is introduced. A novel idea of the proposed method is to employ a low-bitrate encoder as a reference to decide how many bits can be embedded. With this method, 10-kbit/s embedding with only a little subjective degradation of speech quality is achieved.

These results clearly show that data-hiding technologies are promising and effective to realize secure and highly value-added communications.

Educational Background:
	1981		Dr. Engineering (Tohoku University) for Electrical and Communication Engineering
Main Professional Experience:
	2008 -		Director, Information Synergy Organization, Tohoku University, Japan
	2007 -		Deputy Director, Research Institute of Electrical Communication, Tohoku University, Japan
	1999 -		Professor, Research Institute of Electrical Communication and Graduate School of Information Sciences, Tohoku University, Japan
Main Prizes/Awards:
	Funai Best Paper Award, FIT2005, 2005
	The Sato Prize, the best paper award of the Acoustical Society of Japan, 1994 & 1992
Main Academic Activities:
	2009 -		Member, Telecommunication Council, Ministry of Internal Affairs and Communications
	2007 -		Chairperson, Publication Committee. Acoustical Society of Japan
	2006 -		Member, Council Board, Virtual Reality Society of Japan
	2005 - 2007		President, the Acoustical Society of Japan

		Scientific Counselor/Advisor of the National Library of Medicine (USA), Academia Sinica (Taiwan), and National Library of China (China)
		IEEE Fellow
		AAAS Fellow
		Co-Editor of ACM Transactions on Information Systems
		Co-Editor of IEEE Intelligent Systems
		Co-Editor of IEEE Transactions on Systems, Man, and Cybernetics
		Co-Editor of Journal of the American Society for Information Science and Technology, Decision Support Systems
		Co-Editor of International Journal on Digital Library
Honor
2008		INFORMS Design Science Award
2006		IEEE Computer Society 2006 Technical Achievement Award

Cyber security has become one of the most challenging research areas facing academia, industry, and governments. In this talk I will review our research in Intelligence and Security Informatics (ISI), which aims to develop advanced information systems and analytical techniques for security purposes. I will review our internationally acclaimed Dark Web project and discuss our ongoing research in botnets tracking and analysis. An underground community of cyber criminals has grown in recent years with powerful technologies capable of inflicting serious economic and infrastructural harm in the digital age.

This talk will serve as an introduction to the world of botnets and to the joint research efforts of the University of Arizona Artificial Intelligence Lab and The ShadowServer Foundation. A data mining exploration is performed on the botnet command & control (C&C) servers to investigate possible characteristics of botnet herders, their targets, attack signatures, and cyber affiliations. The project is partially funded by the US National Science Foundation.

Dr. Hsinchun Chen is McClelland Professor of Management Information Systems at the University of Arizona. He received the B.S. degree from the National Chiao-Tung University in Taiwan, the MBA degree from SUNY Buffalo, and the Ph.D. degree in Information Systems from the New York University. Dr. Chen had served as a Scientific Counselor/Advisor of the National Library of Medicine (USA), Academia Sinica (Taiwan), and National Library of China (China). Dr. Chen is a Fellow of IEEE and AAAS. He received the IEEE Computer Society 2006 Technical Achievement Award and the INFORMS Design Science Award in 2008. He is author/editor of 20 books, 25 book chapters, 180 SCI journal articles, and 120 refereed conference articles covering Web computing, search engines, digital library, intelligence analysis, biomedical informatics, data/text/web mining, and knowledge management. His recent books include: Mapping Nanotechnology Knowledge and Innovation (2008), Digital Government: E-Government Research, Case Studies, and Implementation (2007); Intelligence and Security Informatics for International Security: Information Sharing and Data Mining (2006); and Medical Informatics: Knowledge Management and Data Mining in Biomedicine (2005), all published by Springer. Dr. Chen was ranked #8 in publication productivity in Information Systems (CAIS 2005) and #1 in Digital Library research (IP&M 2005) in two bibliometric studies. He serves on ten editorial boards including: ACM Transactions on Information Systems, IEEE Intelligent Systems, IEEE Transactions on Systems, Man, and Cybernetics, Journal of the American Society for Information Science and Technology, Decision Support Systems, and International Journal on Digital Library. He has been an advisor for major NSF, DOJ, NLM, DOD, DHS, and other international research programs in digital library, digital government, medical informatics, and national security research. Dr. Chen is founding director of Artificial Intelligence Lab and Hoffman E-Commerce Lab. The UA Artificial Intelligence Lab, which houses 30+ researchers, has received more than $25M in research funding from NSF, NIH, NLM, DOD, DOJ, CIA, DHS, and other agencies. The Hoffman E-Commerce Lab, which has been funded mostly by major IT industry partners, features one of the most advanced e-commerce hardware and software environments in the College of Management. Dr. Chen is conference co-chair of ACM/IEEE Joint Conference on Digital Libraries (JCDL) 2004 and has served as the conference/program co-chair for the past eight International Conferences of Asian Digital Libraries (ICADL), the premiere digital library meeting in Asia that he helped develop. Dr. Chen is also (founding) conference co-chair of the IEEE International Conferences on Intelligence and Security Informatics (ISI) 2003-2009. The ISI conference, which has been sponsored by NSF, CIA, DHS, and NIJ, has become the premiere meeting for international and homeland security IT research. Dr. Chen¡¦s COPLINK system, which has been quoted as a national model for public safety information sharing and analysis, has been adopted in more than 1600 law enforcement and intelligence agencies. The COPLINK research had been featured in the New York Times, Newsweek, Los Angeles Times, Washington Post, Boston Globe, and ABC News, among others. The COPLINK project was selected as a finalist by the prestigious International Association of Chiefs of Police (IACP)/Motorola 2003 Weaver Seavey Award for Quality in Law Enforcement in 2003. COPLINK research has recently been expanded to border protection (BorderSafe), disease and bioagent surveillance (BioPortal), and terrorism informatics research (Dark Web), funded by NSF, CIA, and DHS. In collaboration with selected international terrorism research centers and intelligence agencies, the Dark Web project has generated one of the largest databases in the world about extremist/terrorist-generated Internet contents (web sites, forums, blogs, and multimedia documents). Dark Web research supports link analysis, content analysis, web metrics analysis, multimedia analysis, sentiment analysis, and authorship analysis of international terrorism contents. The project has received significant international press coverage, including: Associated Press, USA Today, NSF Press, Washington Post, Fox News, BBC, PBS, Business Week, Discover magazine, WIRED magazine, Government Computing Week, Second German TV (ZDF), Toronto Star, and Arizona Daily Star, among others. Dr. Chen is the founder of the Knowledge Computing Corporation, a university spin-off company and a market leader in law enforcement and intelligence information sharing and data mining. He has also received numerous awards in information technology and knowledge management education and research including: AT&T Foundation Award, SAP Award, the Andersen Consulting Professor of the Year Award, the University of Arizona Technology Innovation Award, and the National Chiao-Tung University Distinguished Alumnus Award. He was also named Distinguished Alumnus by SUNY Buffalo. Dr. Chen had served as a keynote speaker in major international security informatics, medical informatics, information systems, knowledge management, and digital library conferences. He is a Distinguished/Honorary Professor of several major universities in Taiwan and China (including Chinese Academy of Sciences and Shanghai Jiao Tong University) and was recently named the Distinguished University Chair Professor of the National Taiwan University. Dr. Chen serves as the Program Co-Chair of the International Conference on Information Systems (ICIS) 2009, to be held in Phoenix, Arizona.

		Honorable Guest Professor, Shizuoka University, Japan, 2009.
		Zi Qiang Visiting Professor, Shanghai University, China, January 10 ¡V February 15, 2009.
		Adjunct Professor, University of Aizu, Japan, Oct. 1, 2007.
		Adjunct Professor, National Tsing Hua University, Taiwan, Feb 2007 ¡V July 2007.
		Visiting Professor, City University of Hong Kong, Hong Kong, June 15 ¡V Sept. 15, 2007.
		Consultant, Institute for Information Industry, Taiwan, 2003.
		Visiting Researcher, Academia Sinica, Taiwan, July ¡V Sept. 2001.
		Associate Editors and Area Editors in 34 International Journals including ACM Transactions on Internet Technology, IEEE Transactions on Learning Technologies, and IEEE Transactions on Multimedia (2005-2007).

Video Forgery is a technique for generating fake video by altering, combining, or creating new video contents. We change the behavior of actors in a video. For instance, the outcome of a 100-meter race in the Olympic Game can be falsified. We track objects and segment motions using a modified mean shift mechanism. The resulting video layers can be played in different speeds and at different reference points with respect to the original video. In order to obtain a smooth movement of target objects, a motion interpolation mechanism is proposed based on reference stick figures (i.e., a structure of human skeleton) and video inpainting mechanism.

The video inpainting mechanism is performed in a quasi-3D space via guided 3D patch matching. Interpolated target objects and background layers are fused. It is hard to tell whether a falsified video is the original. We demonstrate the original and the falsified videos in our website at: http://member.mine.tku.edu.tw/www/TIP2008/ and
http://member.mine.tku.edu.tw/www/ACMMM08VideoDemo. Video falsifying may create a moral problem. Our intension is to create special effects in movie industry.

Dr. Shih is a professor of the Department of Computer Science at National Taipei University of Education, Taiwan and an adjunct professor at Tamkang University and National Tsing Hua University, Taiwan. Dr. Shih is a Fellow of the Institution of Engineering and Technology, UK. He is a member of ACM. As a senior member of IEEE, Dr. Shih joined the Educational Activities Board of the Computer Society. His current research interests include Multimedia Computing and Distance Learning. Dr. Shih has edited many books and published about 400 papers and book chapters, as well as participated in many international academic activities, including the organization of more than 50 international conferences and several special issues of international journals. He was the founder and co-editor-in-chief of the International Journal of Distance Education Technologies, published by Idea Group Publishing, USA. Dr. Shih is an associate editor of the ACM Transactions on Internet Technology and an associate editor of the IEEE Transactions on Learning Technologies. He was also an associate editor of the IEEE Transactions on Multimedia. Dr. Shih has received many research awards, including research awards from National Science Council of Taiwan, IIAS research award from Germany, HSSS award from Greece, Brandon Hall award from USA, and several best paper awards from international conferences. Dr. Shih has been invited to give more than 25 keynote speeches and plenary talks in international conferences, tutorials in IEEE ICME 2001/2006 and ACM Multimedia 2002/2007, and talks at international conferences and overseas research organizations. Publications, demonstrations and contact address of Dr. Shih can be retrieved from http://www.mine.tku.edu.tw/chinese/teacher/tshih.htm.