Sökning: "bias adjustment"

Visar resultat 1 - 5 av 32 avhandlingar innehållade orden bias adjustment.

  1. 1. Reducing uncertainties in climate change impact studies through uni- and multivariate methods : A Nordic perspective

    Författare :Faranak Tootoonchi; Claudia Teutschbein; Jan O. Haerter; Olle Räty; Thomas Grabs; Alex J. Cannon; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Climate change; precipitation and temperature; bias adjustment; bias correction; univariate and multivariate methods; hydrologic signatures; drought; Sweden; Geovetenskap med inriktning mot miljöanalys; Earth Science with specialization in Environmental Analysis;

    Sammanfattning : Climate change poses undeniable impacts on hydroclimatic processes due to simultaneous effects of rising temperature and changing precipitation patterns. To quantify these impacts, simulations of climate variables are typically retrieved from climate models, which are then downscaled and bias-adjusted for a particular study site. LÄS MER

  3. 2. Seasonal Adjustment and Dynamic Linear Models

    Författare :Can Tongur; Daniel Thorburn; Sune Karlsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dynamic linear models; DLM; direct and indirect seasonal adjustment; relative efficiency; Huber loss function; Polls of polls; Wiener process; Swedish elections; Statistics; statistik;

    Sammanfattning : Dynamic Linear Models are a state space model framework based on the Kalman filter. We use this framework to do seasonal adjustments of empirical and artificial data. A simple model and an extended model based on Gibbs sampling are used and the results are compared with the results of a standard seasonal adjustment method. LÄS MER

  4. 3. Key Technologies in Low-cost Integrated Vehicle Navigation Systems

    Författare :Yueming Zhao; Lars E. Sjöberg; Milan Horemuž; Hossein Nahavandchi; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GPS; INS; MEMS; error modelling; integration structure; lane detection; camera motion; balance adjustment; sensor array;

    Sammanfattning : Vehicle navigation systems incorporate on-board sensors/signal receivers and provide necessary positioning and guidance information for land, marine, airborne and space vehicles. Among different navigation solutions, the Global Positioning System (GPS) and an Inertial Navigation System (INS) are two basic navigation systems. LÄS MER

  5. 4. College choice and earnings among university graduates in Sweden

    Författare :Kent Eliasson; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; University enrollment; college choice; accessibility; earnings; ability; selection bias; propensity score matching; Economics; Nationalekonomi;

    Sammanfattning : This thesis consists of three papers that examine college choice and earnings among university graduates in Sweden.Paper [I] analyzes how geographical accessibility to higher education affects university enrollment decisions in Sweden. LÄS MER

  7. 5. Essays in Quantitative Finance

    Författare :Patrik Karlsson; Nationalekonomiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; credit valuation adjustment CVA ; derivative pricing; interest rate derivatives; Monte Carlo simulation;

    Sammanfattning : This thesis contributes to the quantitative finance literature and consists of four research papers.Paper 1. This paper constructs a hybrid commodity interest rate market model with a stochastic local volatility function that allows the model to simultaneously fit the implied volatility of commodity and interest rate options. LÄS MER