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Activities of National Institute of Informatics in Japan

Activities of National Institute of Informatics in Japan
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Isao echizenMikkel thorupShigeo urushidaniHimari satoAntony hoareFuyuki ishikawaHiroki takakuraMasaru kitsuregawaIchiro hasuoKazutsuna yamajiKensaku moriNational researchDigital libraryAcm incTechnology reviewAcademic services in support of research

Transformation of controller software to ensure safe behavior under perceptual uncertainty

E-Mail IMAGE: Figure 1. (a) Example of safe uncertainty-aware controller software (b) Challenges of developing such controller software equipped with uncertain sensors. view more Credit: © National Institute of Informatics A research team consisting of Tsutomu Kobayashi, Ichiro Hasuo, Fuyuki Ishikawa, and Shinya Katsumata at the National Institute of Informatics (NII, Japan) and Rick Salay and Krzysztof Czarnecki at University of Waterloo (Canada) developed a method that automatically transforms models of controller software into models that satisfy safety requirements even when there is uncertainty in sensing the state of the environment. In addition to the transformation, the method generates formulas that represent the degree of uncertainty that the controller software can tolerate. The method can be applied to various controller systems that interact with the external environment, including autonomous vehicles.

Ichiro hasuoTsutomu kobayashiFuyuki ishikawaKrzysztof czarneckiShinya katsumataScience information networkKrzysztof czarnecki at university of waterloo canadaExploratory research for advanced technologyNational institute of informaticsTechnology agencyNational instituteRick salayJapan scienceMethods symposiumRobustifying controller specificationsShin ya katsumata

Technique to automatically discover simulation configurations for behaviors hard to test

E-Mail IMAGE: The research team at National Institute of Informatics developed a technique to search automatically for simulation configurations that test various behaviors of automated driving systems. This research was conducted under. view more Credit: © National Institute of Informatics The research team led by Fuyuki Ishikawa at the National Institute of Informatics (NII, Japan) developed a technique to search automatically for simulation configurations that test various behaviors of automated driving systems. This research was conducted under the ERATO-MMSD project ( 1) funded by the Japan Science and Technology Agency (JST, Japan). The proposed technique iterates trials on simulations using an optimization method called evolutionary computation so that it discovers simulation configurations that lead to specific features of driving behaviors such as high acceleration, deceleration, and steering operation. The outcome of this research was presented in ICST 2021

Paolo arcainiKun liuFlorian hauerXiao yi zhangFuyuki ishikawaShaukat aliSoftware testingInternational conference on software testingInternational workshop on searchNational institute of informaticsTechnology agencyScience information networkResearch methodResearch track practical experienceInternational symposium on software reliability engineeringExploratory research for advanced technology