Prof. Nakhoon Baek, Kyungpook National University, Korea

Khronos Group and its Computing Standards

Khronos Group is a not-for-profit industry consortium for creating open standards, since 2000. Almost all world-wide top-class information technology companies have been the members of this consortium. The mission of this consortium is creating cutting-edge royalty-free open standards, especially for graphics and parallel computation on the mobile phones and personal computers. In past decades, Khronos Group focused on its de facto graphics standards, including OpenGL, OpenGL ES, OpenVG, WebGL, WebCL, COLLADA and much more. In last few years, the computing world is rapidly changing, and now Khronos Group released many parallel computing standards. Starting from OpenCL (open computing language), SYCL and modern C++ features are combined to provide single-source heterogeneous programming. In this talk, the new parallel programming paradigm with OpenCL and its related standards will be presented. With these new computing de facto standards, massively parallel computing can be achieved in much cost-effective ways.

Prof. Nakhoon Baek is currently a professor in the School of Computer Science and Engineering at Kyungpook National University, Korea. He received his B.A., M.S., and Ph.D. degrees in Computer Science from Korea Advanced Institute of Science and Technology (KAIST) in 1990, 1992, and 1997, respectively. His research interests include massively parallel implementations and device driver development with modern GPUs.

Prof. Nohpill Park , Oklahoma State University, U. S. A.

Blockchain Technology Review on Architecture, Consensus Algorithms and Applications, and Perspectives
Blockchain is an emerging technology potentially to claim a new role of database, network and security in place of the conventions, just to mention a few. Its underlying architecture and consensus algorithms will be reviewed and discussed from the perspectives of various factors. Then, an analytical study on its quality of trustworthiness will be introduced followed by a few potential applications of interest.
Blockchain architecture will be reviewed from its underlying network protocol’s perspective and its various types. Technical benefits from blockchain technology will be discussed from the architecture’s perspective.
Various consensus algorithms will be reviewed and discussed such as Practical Byzantine tolerance (PBFT), Proof of Work (POW), Proof of State (POS), Delegated Proof of State (DPoS), and etc.
Then, various design factors that affect the confidence level of the consensus will be reviewed and discussed from the architecture’s perspective and vice versa, since the confidence level of the underlying consensus algorithm of a blockchain architecture is the key to the trustworthiness of the system.
The design factors of concern as stated above are security, autonomy, reliability, and performance, just to mention a few. Then, an analytical study on the effects of architectural factors on the confidence level of the consensus will be demonstrated and discussed.
Lastly, a few potential application of blockchain technology will be introduced, such as crypto B2B, crypto medicine/pharmaceutics, and crypto consumer sentiment network, to mention a few.

Dr. Nohpill Park is currently a faculty member in the Department of Computer Science of Oklahoma State University, Stillwater, Oklahoma, U. S. A. 
He received his Ph.D. from Texas A&M University in computer science in 1997, and B.S. and M.S. from Seoul National University, South Korea, 1987 and 1989, respectively.He was a faculty position in the Electrical and Computer Engineering South Dakota School of Mines and Technology 1997 – 1999 before joining Oklahoma State University.
He also has held various visiting fellow positions at Oklahoma Air Logistics Center OC-ALC/TIET . and Engineering Project, CASI TIET 00-01-001, CDRL A001, 2001; NASA Marshall Space Flight Center (MSFC), Huntsville, AL (5/99 – 7/99) NASA/ASEE Summer Faculty Fellowship Program Modeling and Simulation Reliable Spacecraft On-Board Computing; and ORISE (Oak Ridge Institute for Science and Education) Research Participation Program at the U.S. Army Aberdeen Test Center (USAATC) (5/98 – 12/98) Modeling and Simulation: Reliable Mobile Network.Dr. Park’s research is focused on Computer Architecture; Testing/Diagnosis; Fault Tolerant VLSI; Performance Modeling and Simulation; Reliability; Clockless Circuits and Systems; Embedded HW/SW Co-Reliability; Reliable Digital Image Sensor Design; System-on-Chip; MCM; FPGA; and Nano-Computer. Also, he is interested in Parallel/Distributed Computing, Mobile Computing, Spacecraft On-Board Computing, and Aircraft Maintainability/Reliability.
Dr. Park’s research interests have been on modeling and assurance of reliability and optimization, and he is recently working on problems such as algorithms and modeling in AEI systems and network, bigdata systems and analytics, and blockchain architectures and algorithms, to mention a few.
Dr. Park has been teaching more than a couple of decades such courses as computer architecture (graduate/undergraduate), data structures and algorithm analysis (graduate and undergraduate), operating systems, CMOS VLSI design, fault tolerant VLSI design, to mention a few.
Dr. Park has been serving various professional societies as a General Co-Chair, IEEE DFT 2006 (N. Park and H. Ito), Editorial Board of the Elsevier Journal of Systems Architecture, Program Co-Chair, IEEE DFT 2005 (N. Park and H. Ito), co-Chair of IEEE Instrumentation and Measurement, Technical Committee on Fault Tolerant Measurement Systems (N. Park and S. Demidenko), and a Guest-Editor (N. Park and F. Lombardi): IEEE Transactions on Instrumentation & Measurement Special Issue on Reliable Digital Instrumentation Last Issue of 2003, to mention a few.
Dr. Park has various research awards and grants such as NSF-0340949: Yield Assurance and Optimization for Clockless Wave Pipeline, Oklhaoma State University, Sigma Xi Young Investigator Award, 2003, Sigma Xi Southwest Region (OK, TX, CA, KS, AR, NM, HI, Mexico) Young Investigator Award 2004, and recently various research contracts from the US Air Force on Modeling and Assurance of Repair and Maintenance of Aircrafts.