The conference continues the series of international SCAN symposia,
which have been initiated by the University of Karlsruhe.  
At the beginning, the symposia have been held in this town, but with 
its increasing interest SCAN symposia have been held in many towns in
Europe: Basel (1989), Varna-Albena(1990), Oldenburg(1991), Wien(1993),
Wuppertal(1995), Lyon (1997), Budapest (1998), Karlsruhe(2000), 
Paris (2002) under the joint sponsorship of GAMM and IMACS. 
This is the first time for the conference to be held outside Europe, 
in Japan.


These conferences have traditionally covered the numerical and 
algorithmic aspects of scientific computing, with a strong emphasis 
on validation and verification of computed results as well as on 
arithmetic, programming, and algorithmic tools for this purpose. 
The objectives are to propagate current applications and research as 
well as to promote a greater understanding and increased awareness of 
the subject matters.  With the increasing power of computers, many 
complex numerical simulations requiring a great lot of computations 
are now performed. It appears more and more necessary to validate 
results obtained with the finite arithmetic of computers. Many 
researches concern the validation using a deterministic approach as
computer and interval arithmetic, specific verification methods, 
probabilistic approaches as discrete stochastic arithmetic, etc. 
Tools are now proposed to users, which are able to conclude that 
results provided by computers are reliable, even if much work remains 
to be done in this field.  Other tools for validation and avoiding 
round-off errors are based on exact representation and computer algebra 
systems. It seems that the future development of the field will be seeked 
in the combination of various approaches and existing tools. One of the
missions of SCAN2004 is to become a forum for the presentation of the
many existing validation tools and approaches in order to meet representative 
populations of these various fields and uniform their concepts.


The scientific program will consist of invited general lectures and
contributed presentations. Exhibitions and demonstrations of computer
hardware and software will be welcome.

 ++ Scientific committee:

 G. Alefeld, Karlsruhe (Germany)
 R. Alt, Paris (France)
 J.-M. Chesneaux, Paris (France)
 G.F. Corliss, Milwaukee (Wisconsin, USA)
 T. Csendes, Szeged (Hungary)
 A. Frommer, Wuppertal (Germany)
 G. Heindl, Wuppertal (Germany)
 J. Herzberger, Oldenburg (Germany)
 K.-U. Jahn, Leipzig (Germany)
 E. Kaucher, Karlsruhe (Germany)
 R.B. Kearfott, Lafayette (Louisiana, USA)
 W. Kraemer, Wuppertal (Germany)
 V. Kreinovich, El Paso (Texas, USA)
 U. Kulisch, Karlsruhe (Germany)
 G. Mayer, Rostock (Germany)
 S. Markov, Sofia (Bulgaria)
 J.-M. Muller, Lyon (France)
 M. T. Nakao, Fukuoka(Japan)
 M. Plum, Karlsruhe (Germany)
 L.B. Rall, Madison (Wisconsin, USA)
 J. Rohn, Praha (Czechia)
 S.M. Rump, Hamburg (Germany)
 H. Schwandt, Berlin (Germany)
 Z. Shen, Nanjing (China)
 J. Vignes, Paris (France)
 W. V. Walter, Dresden (Germany)
 J. Wolff von Gudenberg, Wurzburg (Germany)
 T. Yamamoto, Tokyo (Japan)



 ++ Information about the conference can be found at the URL address:
    http://scan2004.math.kyushu-u.ac.jp/ 


 ++ Questions can be sent to the e-mail address: 
    scan2004@math.kyushu-u.ac.jp


 ++ Registration and submission of abstracts will be possible soon.


 ++ Conference Chairman: 
     Mitsuhiro T. Nakao (Faculty of Mathematics, Kyushu University)


 ++ Local Organization: 
     Masahisa Tabata  (Faculty of Mathematics, Kyushu University)
     Seiji Fujino (Computing and Communicatioins Center, Kyushu University)
     Kaori Nagatou  (Faculty of Mathematics, Kyushu University)
     Yoshitaka Watanabe (Computing and Communicatioins Center, Kyushu University)

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