Sökning: "multivariate test"

Visar resultat 31 - 35 av 169 avhandlingar innehållade orden multivariate test.

  1. 31. A multivariate approach to the interpretation of patterns in homicidal and suicidal sharp force fatalities

    Författare :Thore Karlsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Forensic medicine; homicide; suicide; Multivariate statistical analysis; PCA; PLS-DA; trauma pathology; sharp injury.;

    Sammanfattning : Sharp force injury is in Sweden as in many other European countries the leading cause of homicidal deaths. Sharp force suicide, constitutes almost as many fatalities and sometimes a difficult differential diagnosis. An objective of this thesis is to identify and quantify variables indicating suicide or homicide. LÄS MER

  3. 32. Early Environment and Adolescent Ethanol Consumption : Effects on Endogenous Opioids and Behaviour in Rats

    Författare :Loudin Daoura; Ingrid Nylander; Erika Roman; Bo Söderpalm; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Alcohol; intermittent ethanol access; maternal separation; multivariate concentric square field™ test; maternal behavior; ultrasonic vocalization; adolescent; neonatal handling; Farmaceutisk farmakologi; Pharmaceutical Pharmacology;

    Sammanfattning : Excessive and compulsive ethanol drinking is one of the most serious public health issues. Therefore, it is vital to increase the knowledge about risks and protection for alcohol use disorders (AUD) to optimize prevention and treatment strategies. LÄS MER

  4. 33. Polycyclic aromatic compounds (PAC) in diesel fuels and exhaust emissions : aspects of sampling techniques, chemical determination, multivariate data interpretation and PAC emissions reduction

    Författare :Hang Li; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The rapid growth in the number of motor vehicles has raised serious environmental health hazard problems in urban areas associated with vehicle exhaust emissions. Exhaust emissions from heavy duty diesel vehicles are very complex mixtures containing thousands of chemical components distributed between the particulate, semivolatile and gaseous phases. LÄS MER

  5. 34. Essays on Time Series Analysis : With Applications to Financial Econometrics

    Författare :Daniel Preve; Rolf Larsson; Bent Nielsen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; non-Gaussian time series; nonnegative autoregression; robust estimation; strong convergence; realized volatility; volatility forecast; forecast comparison; Diebold-Mariano test; Statistics; Statistik;

    Sammanfattning : This doctoral thesis is comprised of four papers that all relate to the subject of Time Series Analysis.The first paper of the thesis considers point estimation in a nonnegative, hence non-Gaussian, AR(1) model. The parameter estimation is carried out using a type of extreme value estimators (EVEs). LÄS MER

  7. 35. Preprocessing perceptrons

    Författare :Lena Kallin Westin; Patrik Eklund; Lothar Gierl; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Datalogi; Preprocessing perceptron; Production line; Neural networks; Backpropagation; Fuzzy logic; ROC and QROC curves; Multivariate decision limits; Datalogi; Computer science; Datalogi; business data processing; administrativ databehandling;

    Sammanfattning : Reliable results are crucial when working with medical decision support systems. A decision support system should be reliable but also be interpretable, i.e. able to show how it has inferred its conclusions. LÄS MER