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Hans Juergen Mattausch (Professor, Hiroshima University)

  • Title

The Role of Functional Memories in Parallel Information Processing with Localized and Distributed Systems

  • Authors

Hans Jrgen Mattausch, Koh Johguchi, Takeshi Kumaki, Tetsushi Koide

  • Abstract

The analysis of parallel information-processing systems, independent of their realization in localized or distributed form, reveals that the necessary data exchange between data-storage and data-processing parts of the system represents a major limiting factor for the system performance. Therefore, in addition to the number-crunching power of the processing parts, innovations which substantially improve the bandwidth of the data exchange are essential for advances in the overall system capabilities. To be practically useful, such innovations must in particular carefully balance the bandwidth of the exchanged data amount against the required power dissipation for this purpose. We will review the main methods for achieving the data- exchange improvements, namely (a) an increased memory-access bandwidth by multi-porting of the memory and (b) a unification of memory and processing parts of the information-processing system. We will further present the recent advances in VLSI architectures for realizing the higher data-exchange bandwidth by applying advanced nano-technologies and discuss practical implementation examples for parallel processors as well as for pattern-matching and pattern-recognition systems.

Toshihiko Yamakami(Senior Specialist, CTO Office, ACCESS)

  • Title

Pains and Challenges in the Mobile Internet Evolution

  • Summary

The Mobile Internet evolves drastically in the last decade in Japan. The rapid evolution provides pains and challenges for operators, content providers, and client software technology providers. The CPU and memory size evolve in a scale of thousand times. Display resolution evolves in a slightly modest manner. Restrictions, the speed of change, and the diversity of capabilities continues to provide challenges to software engineering and service engineering.

The author will summarize the decade of challenges in software engineering in the mobile handset client side. There are 4 billion mobile handsets on this planet and the media and service impacts of them will exceed those of PCs and TVs. The lessons learned in the mobile Internet evolution about mobile service engineering will be highlighted.

  • Profile

Toshihiko Yamakami (Senior Specialist, CTO Office, ACCESS)

He got his Master's degree of Information Science from University of Tokyo in 1984. After he joined NTT in 1984, he was engaged in research in computer communication and international standardization of distributed application services in CCITT and ISO. He started his CCITT/ISO MHS standardization activities in 1989 as part of his development work of office application systems. During his NTT R&D carrier, he was a visiting researcher in AT&T Bell Labs during 1990-1991. He got a Yamashita-Award of Information Processing Society of Japan in 1995. He was Chair of Japanese National Body of SC18/WG 4(Distributed Communication Systems). During 1998-1999, he was engaged in Internet business launch in NTTData, a subsidiary of NTT, as a project manager. He joined ACCESS in 1999, and has been engaged in International Standardization in W3C and OMA (formerly WAP Forum). He was Co-Editor of W3C XHTML Basic 1.0 and Editor of WAP Forum WML 2.0. He was Interim Vice-Chair of MCE (Mobile Client Environment) of OMA in 2008. He obtained his Ph.D from Graduate School of Engineering of Kagawa University in 2007. He has been a Guest Professor in Tokyo University of Agriculture and Technology since 2005 and a Lecturer in University of Tsukuba since 2008. He has published 10 journal papers and more than 70 refereed International Conference papers. He has been a member of ACM since 1982.

Oscar H. Ibarra (Professor, University of California)

  • Title

Computing with Membranes: An Overview

  • Abstract

Membrane computing is a branch of molecular computing that aims to develop models and paradigms that are biologically motivated. It identifies an unconventional computing model, namely a P system, which abstracts from the way living cells process chemical compounds in their compartmental structure. P systems are a class of distributed maximally parallel computing devices of a biochemical type. We present an overview of the area and discuss recent results that answer some interesting and fundamental open questions concerning these systems.

  • Profile

Oscar H. Ibarra received the B.S. degree in Electrical Engineering from the University of the Philippines and the M.S. and Ph.D. degrees, also in Electrical Engineering, from the University of California, Berkeley. He is a Professor and past Chair of the Department of Computer Science at the University of California, Santa Barbara. His research interests include the design and analysis of algorithms, theory of computation, computational complexity, parallel computing, membrane computing, formal verification.

Ibarra is a Fellow of the AAAS, ACM, and IEEE. Among his honors and awards are the following: Guggenheim Fellowship, IEEE Computer Society's Harry H. Goode Memorial Award, Japan Society for the Promotionof Science Fellowship, Nokia Visiting Fellowship, the 2007 Blaise Pascal Medal in Computer Science from the European Academy of Sciences, Foreign member of Academia Europaea (Informatics Section), Distinguished Visiting Fellowship from the UK Royal Academy of Engineeering. He was designated Highly Cited Researcher by the Institute for Scientific Information. He is the Editor-in-Chief of the International Journal of Foundations of Computer Science and has served or currently serves on the editorial boards of several journals.

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