Search for dissertations about: "ranking variables"

Showing result 6 - 10 of 22 swedish dissertations containing the words ranking variables.

  2. 6. Statistically Guided Visualization and Exploratory Analysis of Omics Data

    Author : Charlotte Soneson; Brain Repair and Imaging in Neural Systems (BRAINS); []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bioinformatics; Exploratory analysis; Multidimensional Scaling; Omics data; Principal component analysis; Visualization;

    Abstract : This thesis deals with methods for extracting robust and relevant information from high-dimensional data sets, and statistically guided visualization methods for representing the data in an informative and easily accessible way. High-dimensional data sets are becoming increasingly prevalent in many different scientific disciplines. READ MORE

  4. 7. Automated Bottleneck Analysis of Production Systems : Increasing the applicability of simulation-based multi-objective optimization for bottleneck analysis within industry

    Author : Jacob Bernedixen; Amos H. C. Ng; Anna Syberfeldt; Kalyanmoy Deb; Leif Pehrsson; Magnus Wiktorsson; Högskolan i Skövde; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; bottleneck analysis; bottleneck identification; bottleneck improvement; multi-objective optimization; simulation; Production and Automation Engineering; Produktion och automatiseringsteknik;

    Abstract : Manufacturing companies constantly need to explore new management strategies and new methods to increase the efficiency of their production systems and retain their competitiveness. It is of paramount importance to develop new bottleneck analysis methods that can identify the factors that impede the overall performance of their productionsystems so that the optimal improvement actions can be performed. READ MORE

  5. 8. Chronic stress among adolescents : Contributing factors and associations with academic achievement

    Author : Karin Schraml; Aleksander Perski; Katariina Salmela-Aro; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Chronic stress; adolescents; academic achievement; sleep; social jetlag; self-esteem; demand-control-support; gender; Psychology; psykologi;

    Abstract : According to recent nationwide surveys there have been dramatic increases in stress and serious stress-related health problems among Swedish adolescents. The aims of the present thesis were to investigate the prevalence of perceived chronic stress among sixteen-year-old adolescents who attended their first year at high-ranking high schools in the Stockholm area, to examine if factors that have been found to be relevant in the development of chronic stress among adults also contribute to chronic stress among adolescents, and to investigate the associations between chronic stress and sleep-related variables and academic achievement. READ MORE

  6. 9. Methane production in dairy cows : individual cow variability in methane production

    Author : Edward Hernando Cabezas Garcia; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Enteric methane (CH4) emissions vary between individual cows, and this variation is attributed to both animal and dietary factors. In addition, measurement technique of in vivo CH4 emissions from individual animals still represents a major challenge for successful emissions mitigation strategies. READ MORE

  7. 10. Foundation of Multi-Criteria Quality Scoring

    Author : Maria Ulan; Anna Wingkvist; Harald Störrle; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Data- och informationsvetenskap; Computer and Information Sciences Computer Science;

    Abstract : Software quality becomes more critical as our dependence on software increases. We need better quality assessment than ever. Comparison and ranking of software artifacts, detection of bad or good quality are important tasks for quality assessment.Software quality models are widely used to support quality assessment. READ MORE