Sökning: "missing value"

Visar resultat 16 - 20 av 79 avhandlingar innehållade orden missing value.

  1. 16. Fertility, childcare and labour market : dynamics in time and space

    Författare :Elena Kotyrlo; Magnus Wikström; Niklas Hanes; Giovanni Forchini; Anders Stenberg; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; nationalekonomi;

    Sammanfattning : Paper [I] focuses on the effects of time and space dynamics on the description offertility in Sweden. Fertility is an important determinant of long-term populationgrowth and labour market conditions. The influence of time dynamics inpostponing or accelerating childbearing is assessed by considering two differenteffects of earnings. LÄS MER

  3. 17. Machine Learning methods in shotgun proteomics

    Författare :Patrick Truong; Lukas Käll; Peter Nilsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mass spectrometry protein summarization Bayesian hierarchical modelling label-free quantification data-independent acquisition mass spectrometry; benchmark mathematical methods; transformers; computational proteomics; proteomics; bioinformatics; bert; ms2 intensity; probabilistic modelling; Biotechnology; Bioteknologi;

    Sammanfattning : As high-throughput biology experiments generate increasing amounts of data, the field is naturally turning to data-driven methods for the analysis and extraction of novel insights. These insights into biological systems are crucial for understanding disease progression, drug targets, treatment development, and diagnostics methods, ultimately leading to improving human health and well-being, as well as, deeper insight into cellular biology. LÄS MER

  4. 18. Towards systematic improvement work in project-based organizations : An efficiency and effectiveness perspective

    Författare :Erik Sundqvist; Diana Chronéer; Fredrik Backlund; Tina Karrbom Gustavsson; Luleå tekniska universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Project Management; Project-based organization; Efficiency; Effectiveness; Improvement; Kvalitetsteknik; Quality Technology Management;

    Sammanfattning : Project-based organizations (PBOs) have adopted projects as a primary tool for carrying out most of their operations. By doing so, the PBO operates mainly on two organizational levels, the project level and the organizational level. LÄS MER

  5. 19. Real-Time Monitoring of Healthcare Interventions in Routine Care : Effectiveness and Safety of Newly Introduced Medicines

    Författare :Thomas Cars; Johan Sundström; Björn Wettermark; Martin Neovius; Til Stürmer; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Electronic Health Records; Comparative Effectiveness Research; Comparative Safety Research; Sequential drug monitoring; propensity score; real-world data; infliximab; TNF-inhibitors; dronedarone; amiodarone; flecainide; Farmakoepidemiologi; Pharmacoepidemiology;

    Sammanfattning : Before market authorization of new medicines, their efficacy and safety are evaluated using randomized controlled trials. While there is no doubt about the scientific value of randomized trials, they are usually conducted in selected populations with questionable generalizability to routine care. LÄS MER

  7. 20. Multiple Kernel Imputation : A Locally Balanced Real Donor Method

    Författare :Nicklas Pettersson; Daniel Thorburn; Susanne Rässler; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bayesian Bootstrap; Boundary Effects; External Information; Kernel estimation features; Local Balancing; Pólya Sampling; statistik; Statistics;

    Sammanfattning : We present an algorithm for imputation of incomplete datasets based on Bayesian exchangeability through Pólya sampling. Each (donee) unit with a missing value is imputed multiple times by observed (real) values on units from a donor pool. The donor pools are constructed using auxiliary variables. LÄS MER