Essays about: "Feluppskattning"

Showing result 1 - 5 of 7 essays containing the word Feluppskattning.

  1. 1. Error estimation for neural network approximations of convection problems

    University essay from KTH/Matematik (Avd.)

    Author : Ludvig Eidmann; [2022]
    Keywords : ;

    Abstract : The problem of approximating a solution to the convection equation $\partial_t u +f\cdot\nabla_xu = h$ given data on the flux $f$, source function $h$ and a final condition $g$ is investigated. Specifically, two layer neural networks are used to approximate $f,h$ and $g$ and a solution is approximated using numerical integration. READ MORE

  3. 2. Coastal Response to Sea Level Rise in Ystad Municipality

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Elin Olsson; Sara Engström; [2021]
    Keywords : coastal erosion; Bruun Rule; sea level rise; coastal management; beach morphology; coastal processes; Technology and Engineering;

    Abstract : The globally accelerating sea-level rise poses a problem in coastal areas through, e.g., the erosion of sandy beaches. Due to this, buildings, infrastructure, and other values can be lost, making the future shoreline position important to project in coastal management. READ MORE

  4. 3. Compression Characteristics of Elastomer Elements

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Rahul Nagaraj Dixit; [2021]
    Keywords : Continuum mechanics; Hyperelasticity; Mooney Rivlin; Rack and Pinion; Kontinuummekanik; Hyperelasticitet; Mooney Rivlin; Kuggstångsväxel;

    Abstract : Compression of elastomer elements are nonlinear due to the cross-linked molecular structure owing to a property known as hyperelasticity. Hyperelasticity is defined as the nonlinear stress-strain behavior shown by rubber like materials which can be strained up to a range of 700% in tension and up to 40% in compression. READ MORE

  5. 4. Component-Based Transfer Path Analysis and Hybrid Substructuring at high frequencies : A treatise on error modelling in Transfer Path Analysis

    University essay from KTH/Maskinkonstruktion (Avd.)

    Author : Harikrishnan Venugopal; [2020]
    Keywords : Dynamic Substructuring; Error modelling; Transfer Path Analysis; Uncertainty Propagation; Dynamisk substrukturering; Feluppskattning; Överföringsanalys; Osäkerhetspropagering;

    Abstract : The field of modal testing and analysis is currently facing a surge of interest in error modelling. Several errors which occur during testing campaigns are modelled analytically or numerically and propagated to various system coupling and interface reduction routines effectively. READ MORE

  6. 5. Training Artificial Neural Networks on the Marginal Distribution Estimates of the C index

    University essay from Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Frank Johansson; [2016]
    Keywords : soft; concordance; c; index; artificial neural networks; marginal distribution estimates; Physics and Astronomy;

    Abstract : In this project, we compare two error functions for the purpose of training artificial neural networks on heavily censored data (data where key information is missing). J. Kalderstam et al. has shown that it is possible to train artificial neural networks directly on Harrell's C index \cite{Harrell} using genetic algorithms. READ MORE