Sökning: "MLE"

Visar resultat 1 - 5 av 35 uppsatser innehållade ordet MLE.

  1. 1. Complexity, Order and Underpricing: An Empirical Study of Underpricing in Technology IPOs

    C-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Författare :Emil Holst; Felix Segerstedt Grahn; [2022]
    Nyckelord :Common Valuation Factors; Ex-ante Uncertainty; Information Spillover Effects; Initial Public Offerings; Underpricing;

    Sammanfattning : Using a sample of IPOs in technology-intensive industries between 1983 and 2022, this paper studies the impact of firm-specific characteristics and actions of prior peers on the initial returns of IPOs. Three types of variables are tested to explain the reasons for the large level and variability of IPO underpricing in the technology sector identified in previous academic studies. LÄS MER

  3. 2. Effektivisering av nystartad monteringsprocess En studie av batterimontering hos Epiroc Rock Drills AB

    Uppsats för yrkesexamina på avancerad nivå, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Johan Rhan; Filip Baly; [2022]
    Nyckelord :batteries; assembly; streamlining; lead time; batterier; montering; effektivisering; ledtid;

    Sammanfattning : The mining industry of the future has a strong focus on sustainability, which for example is reflected in the Swedish mining industry association Swemin´s goal of a mining industry free of carbon dioxide in 2035. To make this possible, a broad investment is now being made in the electrification of mining machines, which is believed to have great potential for reducing emissions. LÄS MER

  4. 3. Analyzing the Negative Log-Likelihood Loss in Generative Modeling

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Aleix Espuña I Fontcuberta; [2022]
    Nyckelord :Generative modeling; Normalizing flows; Generative Adversarial Networks; MaximumLikelihood Estimation; Real Non-Volume Preserving flow; Fréchet Inception Distance; Misspecification; Generativa metoder; Normalizing flows; Generative adversarial networks; Maximum likelihood-metoden; Real non-volume preserving flow; Fréchet inception distance; felspecificerade modeller;

    Sammanfattning : Maximum-Likelihood Estimation (MLE) is a classic model-fitting method from probability theory. However, it has been argued repeatedly that MLE is inappropriate for synthesis applications, since its priorities are at odds with important principles of human perception, and that, e.g. LÄS MER

  5. 4. Demography of Birch Populations across Scandinavia

    Master-uppsats, Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Janek Sendrowski; [2022]
    Nyckelord :birch; betula; pubescens; pendula; betula pubescens; betula pendula; silver birch; downy birch; demography; population structure; distribution of fitness effects; DFE; dadi; UMAP; PCA; ADMIXTURE; polyDFE; ice age; glaciation; tree; boreal forest; climate change; adaption; tetraploid; diploid-tetraploid introgression; Scandinavia; genetic cluster; pipeline; snakemake; bioinformatics; reproducible; population genetics; postglacial population expansion; demographic history; FEEMS; site-frequency spectrum; SFS; last glacial maximum; LGM; workflow; python; population expansion; population growth; EST-SFS; 0-fold degenerate; 4-fold degenerate; maximum likelihood estimation; MLE; variant call format; VCF; single-nucleotide polymorphism; SNP;

    Sammanfattning : Boreal forests are particularly vulnerable to climate change, experiencing a much more drastic increase in temperatures and having a limited amount of more northern refugia. The trees making up these vast and important ecosystems already had to adapt previously to environmental pressures brought about by the repeated glaciations during past ice ages. LÄS MER

  7. 5. Nydanande metodik för parameteruppskattning inom ett empiriskt Bayesianskt ramverk

    Kandidat-uppsats, Göteborgs universitet/Institutionen för matematiska vetenskaper

    Författare :Alexander Lehnberg; Malte Rundqvist; Emanuel Abada; Lukas Johansson; Sulaiman Carneli; [2021-07-01]
    Nyckelord :;

    Sammanfattning : Undersökningen behandlar en alternativ metod för parameteruppskattning kalladWeighted Likelihood estimation (WLE) och dess asymptotiska egenskaper i jämförelse med mer etablerade metoder. Kortfattat utnyttjar metoden parameteruppskattningar som empiriska priorifördelningar och summerar dessa med vikter proportionella mot likelihooden för att producera den posteriora fördelningen. LÄS MER