Sökning: "split decomposition"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden split decomposition.

  1. 1. A Hierarchical Tucker Solver for the Vlasov-Maxwell System

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Oskar Tegby; [2023]
    Nyckelord :;

    Sammanfattning : The Vlasov-Maxwell equations is a common model to describe the behavior of a plasma, but come at the cost of their dimensionality since both spatial and veloocity data is stored in three dimensions. This causes a significant obstacle to be able solve them numerically since the size of the data is N^6, which yields a data size of 8. LÄS MER

  3. 2. Title: Does Bitcoin hedge inflation risk? A multivariate time series analysis

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Domenico Roberto Curciarello; [2022-06-29]
    Nyckelord :Bitcoin; 5 years– 5 years forward inflation expectation rate; VAR; VARX; Granger causality; Impulse response function; Forecast error variance decomposition;

    Sammanfattning : This thesis investigates whether Bitcoin can be considered a valuable hedge against inflation risk. The research examines the relationship between Bitcoin and inflation, the two variables' forecast ability, and how an exogenous shock simulated on one variable affects the other. LÄS MER

  4. 3. Experimental and computational analysis of the thermal degradation and the loss of strength of engineered wood-based panels

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Wickramasooriyage Devmini Kularatne; [2022]
    Nyckelord :Oriented strand board; thermal decomposition; mechanical degradation; heat transfer modelling; Technology and Engineering;

    Sammanfattning : The current trends in the construction industry push toward materials that are more sustainable and environmentally friendlier than more traditional building materials such as concrete and steel. Timber and timber composites are one of the most popular materials on this list, due to both their mechanical strength and pleasant aesthetics. LÄS MER

  5. 4. The multivariate time series analysis of the SEK/USD exchange rate

    Master-uppsats, Uppsala universitet/Sannolikhetsteori och kombinatorik

    Författare :Le Hong; [2022]
    Nyckelord :;

    Sammanfattning : In this thesis, we analyze the SEK/USD exchange rate by using the multivari-ate time series models. First we sort out the general workflow. Then we selectthe variables by the Granger causality test and design different combinationsof variables for models. LÄS MER

  7. 5. Speeding up PARAFAC : Approximation of tensor rank using the Tucker core

    Master-uppsats, Uppsala universitet/Statistiska institutionen

    Författare :Lukas Arnroth; [2018]
    Nyckelord :Tucker decomposition; PARAFAC; tensor rank; split-half analysis;

    Sammanfattning : In this paper, the approach of utilizing the core tensor from the Tucker decomposition, in place of theuncompressed tensor, for nding a valid tensor rank for the PARAFAC decomposition is considered.Validity of the proposed method is investigated in terms of error and time consumption. LÄS MER