Sökning: "Multivariat"

Visar resultat 11 - 15 av 54 avhandlingar innehållade ordet Multivariat.

  1. 11. Aspects of Moment Testing when p>n

    Författare :Zhizheng Wang; Thomas Holgersson; Miguel Fonseca; Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; High-dimensional data; Asymptotic distribution; Kolmogorov condition; Monte Carlo simulation; Hypothesis testing; Skewness and kurtosis; Statistics Econometrics; Statistik;

    Sammanfattning : This thesis concerns the problem of statistical hypothesis testing for mean vector as well as testing for non-normality in a high-dimensional setting which is called the Kolmogorov condition. Since we consider mainly the first and the second moment in testing for mean vector and we utilize the third and the fourth moment in testing for non-normality, this thesis concerns a more general moment testing problem. LÄS MER

  3. 12. Contributions to linear discriminant analysis with applications to growth curves

    Författare :Edward Kanuti Ngailo; Martin Singull; Dietrich von Rosen; Anuradha Roy; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis concerns contributions to linear discriminant analysis with applications to growth curves.Firstly, we present the linear discriminant function coefficients in a stochastic representation using random variables from the standard univariate distributions. LÄS MER

  4. 13. Selectivity Enhancement of Gas Sensitive Field Effect Transistors by Dynamic Operation

    Författare :Christian Bur; Anita Lloyd Spetz; Andreas Schütze; Mike Andersson; Stephen Semancik; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Gas sensitive field effect transistors based on silicon carbide, SiC-FETs, have been applied to various applications mainly in the area of exhaust and combustion monitoring. So far, these sensors have normally been operated at constant temperatures and adaptations to specific applications have been done by material and transducer platform optimization. LÄS MER

  5. 14. Methods and techniques for precise and accurate in-duct aero-acoustic measurements : Application to the area expansion

    Författare :Luck Peerlings; Susann Boij; Hans Bodén; Yves Aurégan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Area-expansion; Scattering matrix; Multi-microphone method; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : During the design and commissioning of combustion equipment, combustion associated instabilities are commonly encountered. These thermo-acoustic instabilities can cause undesirable noise, vibrations, local thermal and mechanical stresses in the combustor and are prominent in lean combustion. LÄS MER

  7. 15. The association between moral disengagement and bullying in early adolescence

    Författare :Marlene Bjärehed; Robert Thornberg; Linda Wänström; Gianluca Gini; Sigrun Karin Ertesvåg; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Bullying; Moral disengagement; Social cognitive theory; Mobbning; Moraliskt disengagemang; Socialkognitiv teori;

    Sammanfattning : School bullying occurs when a student is repeatedly exposed to negative actions by other students. The victim is often at some form of a disadvantage. Bullying can take many forms, such as physical, verbal, and relational. It can also occur online. LÄS MER