Wyniki wyszukiwania - BazTech

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When to Trust AI: Advances and Challenges for Certification of Neural Networks

Kwiatkowska Marta, Zhang Xiyue

Annals of Computer Science and Information Systems

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2023

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Vol. 35

25--37

EN

Artificial intelligence (AI) has been advancing at a fast pace and it is now poised for deployment in a wide range of applications, such as autonomous systems, medical diagnosis and natural language processing. Early adoption of AI technology for real-world applications has not been without problems, particularly for neural networks, which may be unstable and susceptible to adversarial examples. In the longer term, appropriate safety assurance techniques need to be developed to reduce potential harm due to avoidable system failures and ensure trustworthiness. Focusing on certification and explainability, this paper provides an overview of techniques that have been developed to ensure safety of AI decisions and discusses future challenges.

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Experimental and theoretical study of the reinforced concrete flat slabs with the central support loss

Tur Viktar, Tur Andrei, Lizahub Aliaksandr

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych

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2022

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Nr 4

12--41

EN

The paper experimentally and theoretically considers the issues of assessing the robustness and resistance to progressive collapse of a flat slab with a sudden removal of the central support. The results of testing two scale models of a fragment of a flat ceiling in the case of removal of the central support under static (specimen FS-1) and dynamic (specimen FS-2) loading are presented and analyzed. A theoretical approach to the quantitative assessment of robustness was tested, which is based on the provisions of the energy balance of a damaged structural system in an accidental design situation.

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Modeling damaged precast structural system when its robustness check

Tur Viktar, Tur Andrei, Lizahub Aliaksandr

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych

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2021

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Nr 3

63--81

EN

Within the framework of traditional approaches to checking for resistance of reinforced concrete buildings and structures to the progressive collapse development, membrane (chain) forces in a damaged structural system are calculated separately, without considering its non-linear bending behavior during the formation of the plastic hinges and without checking the possibility of achieving large deflections. The authors propose an approach to modelling a nonlinear quasi-static reaction of a damaged structural system in an accidental design situation. This approach considers non-linear bending and the resistance of reserved horizontal ties, considering their ultimate ductility. The authors verified the proposed approach based on the results of experimental studies by others researchers. An example of the application of the proposed approach in assessing the robustness of a structural system made of precast concrete with a sudden removal of the central column is considered. In accordance with the provisions of the energy approach, an analysis is made of the contribution of individual resistance mechanisms to the total quasi-static and dynamic resistance of the damaged structural system. We show that the proposed calculation model adequately describes the behavior of a damaged structural system in an accidental design situation, and therefore to carry out parametric studies and check the robustness of building structures.

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O krzepkości konstrukcji - powtórnie

Cywiński Z.

Wiadomości Projektanta Budownictwa

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2009

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nr 8

13--15