JSST2023 Organized Sessions

OS1: Numerical Simulation and Visual Analytics of Nonlinear Problems

OrganizerAyumu Saitoh (Yamagata Univ.)
Co-organizerSatoshi Tanaka (Ritsumeikan Univ.), Koji Koyamada (Kyoto Univ.) and Seiichi Koshizuka (Tokyo Univ.)
ObjectiveBoth the numerical simulation and the visual analytics have played an important role in the analysis of nonlinear problems arising in a wide variety of fields in science and engineering. For example, in solid-state physics, fusion engineering, and fluid dynamics, a number of high-performance numerical techniques have been proposed for solving nonlinear partial differential equations and they have contributed to the remarkable development of these fields. Moreover, visual analytics of complicated/large-sized data is indispensable for the analysis of the results obtained in numerical simulations. In this sense, the numerical simulation and the visualization should work closely together in the analysis of nonlinear problems. The aim of this symposium is to provide a forum for exchanging ideas and discussing recent developments in the numerical simulation and the visual analytics of nonlinear problems.

OS2: Design and Simulations for System Integration

OrganizerShunsuke Nansai (Tokyo Denki Univ.)
Co-organizerKouki Jimbo (Tokyo Denki Univ.)
ObjectiveThe system design and the numerical simulation are important for the system integration in order to save its cost to integrate a large system. The purpose of this session is to share the state-of-the-art design and numerical simulations with analysis and experiments for the system integration.

OS3: Verified Numerical Computations

OrganizerKatsuhisa Ozaki (Shibaura Inst. of Tech.)
Co-organizerKazuaki Tanaka (Waseda Univ.)
ObjectiveThe aim is to introduce state-of-the-art results concerned with verified numerical computations. Any topics related to verified numerical computations and reliable computing are targets.

OS4: Advanced Numerical Analysis and Software in Multiphysics

OrganizerAmane Takei (Univ. of Miyazaki)
Co-organizerDaisuke Ishihara (Kyushu Inst. of Tech.),Hiroshi Kawai (Toyo Univ.) and Akihiro Kudo (Tomakomai College)
ObjectiveOur session focuses on the advanced numerical analysis, the software development, and their applications in the scientific and engineering problems of multiphysics such as structure, fluid, electromagnetics, and heat, and their coupling. The topics of interest include, but not limited to:
a. Coupled-Simulation
The different subsystems form a coupled problem when the independent solution of any one subsystem is impossible without simultaneous solution of the others. The coupled-simulation is the computational approach to coupled problems. The objective of this session is to share the state-of-the-art coupled-simulation, where the topic includes the numerical modeling, algorithms, program and software development, and applications in coupled problems.
b. Advanced Numerical Analysis and Software Technology
Numerical simulation frameworks are widely used in industries as package-software those are sold by software venders. On the other hand, open-source software: OSS’s numerical simulation frameworks are also researched and developed energetically by research groups centered on Universities. For example, ADVENTURE developed by a research group centered on the University of Tokyo, and UG4 developed by Goethe University Frankfurt, Germany, are good examples. These source codes are released, and these are possible for a researcher to develop a simulator with new functions by adding the code required in his own research. The objective of this session is to discuss mathematics such as basic equations and linear algebraic solvers, parallelization techniques, the software development methodology: SDM.

OS5: Complex Networks and Complex Systems

OrganizerAtsushi Tanaka (Yamagata Univ.)
ObjectiveComplex systems have been fascinating subject of self-organization, pattern formation and other nonlinear phenomena. In these days, the study of complex networks has been popular all over the world. It includes not only mathematics and physics but also biology, economics, technology and social science.
Recent developments of computers and simulation techniques have enabled us to analyze and simulate those big-data resources. The aim of this organized session is to provide a forum for exchanging ideas and discussing recent developments in complex systems and complex networks in the various fields of researches.

OS6: Numerical Harmonic Analysis and Signal Processing

OrganizerKensuke Fujinoki (Kanagawa Univ.)
Co-organizerToshio Suzuki (Tokyo Univ. of Sci.)
ObjectiveWith recent technological advances, we are managing large amounts of data, which requires efficient representations and processing.  Applied and numerical harmonic analysis, whose purpose is to provide efficient representations of functions or data, has developed not only for harmonic analysis in mathematics but also for the other scientific fields, such as electrical engineering and computer science, especially signal processing.  Considering such a situation, we selected the topic for the organized session as “Numerical Harmonic Analysis and Signal Processing.”   The aim of this session is to explore an intersection between applied mathematics and its related applications, and discuss recent developments in harmonic analysis and signal processing.

OS7: Computational electromagnetics and its applications

OrganizerHideki Kawaguchi (Muroran Inst. of Tech.)
Co-organizerHajime Igarashi (Hokkaido Univ.), Kota Watanabe (Muroran Inst. of Tech.) and Yoshihisa Fujita (Nihon Univ.)
ObjectiveNumerical simulations of electromagnetic fields are quite various and wide research area. The electromagnetic fields are classified into electro- and magnetostatic, quasi-static and high-frequency or electromagnetic wave fields. On the other hand, there are several numerical schemes for partial differential equation such as the finite-difference method (FDM), finite-element method (FEM), boundary element method (BEM), and so on. In addition to such the view point of numerical techniques, industry and science applications of the computational electromagnetics are also important and active research fields, in which inverse problem and optimization technique are closely connected. Furthermore, the optical vortex is also welcome as special topics of related active research fields. The aim of this organized session is exchange of new results in computational electromagnetism and its engineering applications.

OS8: Natural Bio-Computing and Medical Data

OS8 has been merged into the regular session.